Stainless Steel Flat Products

Stainless Steel Plate & Sheet Supplier

TiAlloy supplies stainless steel plate, sheet, coil and strip for industrial fabrication, equipment manufacturing and project procurement. Quotations are reviewed against grade / UNS, product specification, thickness and dimensions, delivery condition, surface finish, processing, inspection and destination.

Plate Sheet Coil Strip
Request Plate Size & Price
Send grade, thickness, width, length and quantity for quotation review.
Plate / Sheet Supply
Stainless steel plate for industrial fabrication and project procurement
Stainless Steel Plate
Stainless steel sheet and coil flat products
Sheet / Coil
Stainless steel sheet surface and flat product supply
Stainless Sheet
Stainless steel plate and coil products prepared for industrial supply
Plate / Coil
Product Forms Plate · Sheet · Coil · Strip
Core Product Specification ASTM A240 / A240M
Order Definition Grade · Thickness · Width · Length
Supply Review Finish · Processing · Inspection · Documents
Plate RFQ path
Grade / UNS Product Specification Thickness × Width × Length Condition / Finish Processing Inspection Destination
Stainless Steel Flat Products

Stainless Steel Plate, Sheet, Coil & Strip

TiAlloy supplies stainless steel plate, stainless steel sheet, stainless steel coil and stainless steel strip for industrial fabrication, equipment manufacturing, OEM production and project procurement.

Stainless Steel Plate Supplier

Stainless Steel Plate

Stainless steel plate is supplied as individual cut-length flat product for tanks, pressure equipment, process equipment, structural components, machined blanks and fabricated assemblies.

Buyers sourcing stainless steel plate, stainless steel plate stock or ASTM A240 / A240M stainless steel plate should define grade, specification, thickness, width, length and quantity before price and availability are compared.

Plate RFQ Definition Grade / UNS + Specification + Thickness × Width × Length + Quantity + Condition / Surface
Supply Form Full plate · cut-to-size plate · plate blank
Specification Route ASTM A240 / A240M and other applicable project specifications
Processing Cutting · leveling · edge preparation · agreed machining
Dimensional Review Thickness · width · length · flatness · tolerance
Surface / Condition Delivery condition and required plate surface specified with RFQ
Inspection / Documents MTC and additional inspection requirements confirmed against the order
Stainless steel plate supplied as cut-length flat product
Stainless Steel Plate
Stainless Steel Plate Cut-length flat product for fabrication, equipment, structural parts and machined blanks.
Stainless Steel Sheet Flat sheet for panels, formed components, fabrication and laser-cut parts.
Stainless Steel Coil Continuous flat-rolled material for slitting, stamping and cut-to-length processing.
Stainless Steel Strip Narrow flat-rolled product for stamping, forming and precision production.
Need stainless steel plate, sheet, coil or strip pricing?
Send the grade / UNS, applicable specification, product form, dimensions, quantity, condition or surface finish, processing requirement and destination. TiAlloy confirms the available supply route against the actual RFQ.
Request Size & Price
Stainless Steel Plate Grades

Stainless Steel Plate Grade Classification

Stainless steel plate is grouped into austenitic, duplex, ferritic, martensitic and precipitation-hardening families. Choose the grade together with the required specification, dimensions and delivery condition.

Largest Stainless Plate Family

Austenitic Stainless Steels

Austenitic grades cover many common stainless plate enquiries. 304/304L and 316/316L are widely specified, while stabilized, heat-resistant and higher-alloy grades serve more demanding corrosion or temperature requirements.

304 / 304L / 316 / 316L / 321 / 347 / 309S / 310S / 904L / 254 SMO
Stainless steel plate grades for industrial procurement
Stainless Steel Plate
Frequent plate enquiries include 304, 304L, 316L, 321, 310S, 904L and 254 SMO.
Higher Strength / Duplex Structure

Duplex & Super Duplex

2304 — 2205 — 2507 — S32760
Used where higher strength and improved chloride resistance are needed. 2205 and 2507 are the main plate enquiry grades.
Chromium Stainless Family

Ferritic

409 — 430 — 439 — 444
Selected by corrosion level, forming needs, service temperature and project cost.
Hardenable Stainless Family

Martensitic

410 — 420 — 440 Series
Used where heat-treatment response, hardness, wear resistance or higher strength is required.
Heat-Treatable High-Strength Family

Precipitation Hardening

17-4PH / 630 — 15-5PH — 17-7PH
Grade and heat-treatment condition should be ordered together because the final mechanical properties depend on condition.
Choosing a stainless steel plate grade
Compare grades against corrosion environment, required strength, temperature, fabrication route and the governing specification.
One grade list does not mean one product standard.
ASTM A240/A240M covers many stainless plate grades, but not every family follows the same product specification. Confirm the grade, plate form and governing standard together at RFQ stage.
Tell us the grade and plate requirement.
Grade / UNS Plate Specification Dimensions Condition / Finish Quantity Inspection
Request Plate Size & Price
Standards & Product Specifications

Stainless Steel Plate Standards & Product Specifications

A plate enquiry needs more than the grade name. Tell us the product specification, size, condition and project requirements so we can check the correct supply route.

Stainless steel plate supplied to defined product specifications
Stainless Steel Plate
Read the specification route
01 — Product Specification Grade, chemistry, properties and product form
02 — General Requirements Testing, marking, delivery and common requirements
03 — Dimensional Standard Thickness, width, length and flatness tolerances
04 — Project / Code Drawing, PO and project-code requirements
Standard Role Product Scope What the Buyer Should Confirm
ASTM A240/A240M Core Plate Specification
Product specification
Stainless steel plate, sheet and strip for pressure-vessel and general applications.
Grade / UNS, dimensions, condition, finish, quantity and edition.
ASTM A480/A480M General Requirements
Supporting specification
General requirements used with stainless flat-rolled product specifications such as A240.
Confirm tolerances, finish, testing and marking requirements.
ASTM A666/A666M Austenitic Route
Austenitic product specification
Austenitic stainless sheet, strip, plate and flat bar in annealed or specified cold-worked conditions.
Confirm the grade and required mechanical-property condition.
ASTM A693 PH Stainless Route
PH product specification
Precipitation-hardening stainless plate, sheet and strip.
Specify both the grade and required heat-treatment condition.
ASME SA-240/SA-240M Code Material Route
ASME project route
Stainless plate, sheet and strip for applicable ASME pressure-equipment and code projects.
State SA-240 and the applicable project-code requirements on the PO.
EN 10088-2 European Route
Technical delivery specification
European technical delivery conditions for stainless sheet, plate and strip.
State EN grade / material number, condition and dimensions.
ISO 18286 Quarto Plate Tolerances
Dimensional tolerance route
Dimensional and shape tolerances for hot-rolled stainless quarto plate.
Use when the ordered plate falls within the applicable quarto route.
ISO 9444-2 / 9445-2 Coil-Derived Plate / Sheet
Hot / cold rolled tolerance routes
Dimensional tolerances for applicable hot-rolled or cold-rolled wide strip and coil-derived sheet / plate.
Confirm whether the product is quarto plate or coil-derived.
Standard limits are not the same as our available production range.
A standard may cover a wide range of thicknesses and widths, but that does not mean every size is available for every grade. We confirm the actual supply route from grade, dimensions, quantity and required documents.
What should I send for an ASTM A240 plate quote?
Send the grade / UNS, ASTM or ASME specification, thickness × width × length, quantity, condition, surface finish, tolerance, inspection requirements and destination. We will check whether ASTM A480 or another dimensional standard also applies.
Confirm the specification before comparing plate prices.
Grade / UNS Product Specification Thickness × Width × Length Tolerance Condition / Finish Testing / Documents
Request Plate Specification & Price
Stainless Steel Plate Sizes

Stainless Steel Plate Sizes & Thickness Range

Stainless steel plate and sheet are supplied in different rolling routes according to thickness, grade, surface condition and finished size. Common commercial dimensions can simplify procurement, while large or heavy plate sizes require a grade-specific mill-route review.

Thickness & Rolling Route

Common Thickness Groups

0.3–3.0 mm
Cold-Rolled Stainless Steel Common thin sheet / plate route for 2B, BA and other cold-rolled surface requirements.
3.0–12 mm
Hot-Rolled Stainless Steel Plate Common No.1 hot-rolled, annealed and pickled plate route for industrial fabrication.
12–100 mm
Medium / Heavy Plate Heavy hot-rolled or quarto plate route reviewed by grade, plate width and piece weight.
Common Commercial Plate Sizes

Actual Millimetre Formats

These dimensions are common enquiry formats. They do not mean every thickness and grade is held in stock.

1000 × 2000 mm metric sheet format
1219 × 2438 mm 4 × 8 ft format
1500 × 3000 mm industrial flat plate
1500 × 6000 mm long hot-rolled plate
2000 × 6000 mm wide project plate
2500 × 6000 mm large plate enquiry
Stainless steel plates in common commercial sizes
Stainless Steel Plate Sizes
Thin Flat Product Route

0.3–3.0 mm Cold Rolled

Common enquiry sizes include 1000 × 2000 mm, 1219 × 2438 mm and 1500 × 3000 mm, depending on grade, finish and coil availability.

General Plate Route

3.0 mm and Above Hot Rolled

Typical project formats include 1500 × 3000 mm, 1500 × 6000 mm and 2000 × 6000 mm for applicable grades and thicknesses.

Heavy / Project Plate Route

Heavy & Quarto Plate

Large sizes such as 2000 × 6000 mm or 2500 × 6000 mm require confirmation against grade, thickness, rolling route and piece-weight limits.

Example Plate Enquiries examples only — not guaranteed stock
304L Cold Rolled 1.5 × 1219 × 2438 mm
316L Hot Rolled 6 × 1500 × 6000 mm
2205 Duplex 12 × 2000 × 6000 mm
2507 Super Duplex 25 × 2000 × 6000 mm
3.0 mm is a practical procurement boundary, not an absolute metallurgical rule.
Cold-rolled stainless products can extend above 3.0 mm in some grades and mill routes, while hot-rolled plate commonly begins around 3.0 mm. TiAlloy therefore confirms the actual rolling route from grade, thickness, surface finish, finished size and required specification rather than assigning the route from thickness alone.
Send the actual stainless steel plate size required.
1.5 × 1219 × 2438 mm 6 × 1500 × 6000 mm 12 × 2000 × 6000 mm 25 × 2000 × 6000 mm
Request Plate Size & Price
ASTM A480M Dimensional Tolerances

Stainless Steel Plate Thickness, Size & Flatness Tolerances

Stainless steel dimensional tolerances change with rolling route, nominal thickness and plate width. The reference values below show selected ASTM A480M tolerance data in millimetres for cold-rolled, hot-rolled coil-processed and quarto plate products.

Stainless steel plate dimensional inspection
Plate Dimensional Inspection
Actual ASTM A480M tolerance references
Reference values use the SI dimensional tables in ASTM A480/A480M-25B. The governing edition, product route and purchase-order requirements must still be confirmed for each order.
A480M · Cold-Rolled Wide Coil-Processed Product

Cold-Rolled Thickness Tolerance

permitted variation over / under · mm
Nominal Width ≤1000 1000–1300 1300–2100
1.0 mm ±0.055 mm ±0.060 mm ±0.070 mm
1.5 mm ±0.080 mm ±0.080 mm ±0.100 mm
2.0 mm ±0.100 mm ±0.100 mm ±0.110 mm
2.5 mm ±0.100 mm ±0.110 mm ±0.130 mm
3.0 mm ±0.130 mm ±0.130 mm ±0.150 mm
A480M · Hot-Rolled Wide Coil-Processed Product

Hot-Rolled Thickness Tolerance

permitted variation · mm
Nominal Width ≤1500 Width >1500
3.0 mm ±0.25 mm ±0.33 mm
5.0 mm +0.47 / −0.25 +0.51 / −0.25
6.0 mm +0.51 / −0.25 +0.51 / −0.25
8.0 mm +0.75 / −0.25 +0.75 / −0.25
A480M · Hot-Rolled Plate Mill Plate / Quarto Plate

Quarto Plate Thickness Tolerance

Values below show selected common plate thicknesses. For plate up to 250 mm thick, A480M permits −0.30 mm under nominal thickness; the permitted over-thickness changes with nominal thickness and width.

Nominal 5 mm width <2100 mm +1.35 / −0.30 mm width 2100–<3000 mm +1.75 / −0.30 mm
Nominal 10 mm width <2100 mm +1.15 / −0.30 mm width 2100–<3000 mm +1.30 / −0.30 mm
Nominal 20 mm width <2100 mm +1.40 / −0.30 mm width 2100–<3000 mm +1.55 / −0.30 mm
Nominal 50 mm width <2100 mm +1.80 / −0.30 mm width 2100–<3000 mm +1.90 / −0.30 mm
Nominal 75 mm width <2100 mm +3.20 / −0.30 mm width 2100–<3000 mm +3.80 / −0.30 mm
Nominal 100 mm width <2100 mm +3.75 / −0.30 mm width 2100–<3000 mm +4.00 / −0.30 mm
A480M Quarto Plate

Sheared Width Tolerance

Width <2000 mm +15 / −0 mm
2000–<3000 mm +20 / −0 mm
Width ≥3000 mm +25 / −0 mm
A480M Quarto Plate

Sheared Length Tolerance

Length <4000 mm +20 / −0 mm
4000–<6000 mm +30 / −0 mm
6000–<8000 mm +40 / −0 mm
A480M Abrasive Cut Plate

Cut Width / Length Tolerance

Thickness ≤25 mm ±3.2 mm
25–50 mm +4.8 / −3.2 mm
50–75 mm +6.4 / −3.2 mm
75–100 mm +7.9 / −3.2 mm
A480M Quarto Plate Flatness · max deviation over 914 mm
5 mm plate 10 mm maximum deviation
10 mm plate 9.5 mm maximum deviation
15–25 mm plate 7.9 mm maximum deviation
50 mm and thicker 6.4 mm maximum deviation
Standard tolerance is not the same as precision-cut capability.
These are selected ASTM A480M standard allowances, not a claim that every TiAlloy order will be supplied at the maximum permitted variation. Tighter thickness, width, length, flatness or machining tolerances can only be quoted after the grade, actual dimensions, cutting method and inspection requirement are reviewed. For quarto plate with specified minimum yield strength of 240 MPa or higher, the applicable A480M flatness allowance can increase to 1.5 times the basic value.
Need a plate tolerance tighter than ASTM A480M?
Grade / UNS Actual Size Thickness Tolerance Flatness Cut Tolerance Inspection Method
Request Tolerance Review
Delivery Condition & Surface Finish

Stainless Steel Plate Surface Finishes & Delivery Condition

Tell us the grade, thickness, plate size and finish you need. If appearance or roughness matters, also include the target Ra, polishing direction and protective-film requirement. This helps us check the right material and finishing route before quotation.

Hot Rolled No.1 Annealed & Pickled Common industrial hot-rolled plate finish
Cold Rolled 2D Matt Finish Matt cold-rolled, annealed and pickled surface
Cold Rolled 2B Smooth Mill Finish Common smooth finish for sheet and thin plate
Bright Annealed BA Bright Surface Bright surface from controlled-atmosphere annealing
Mechanical Finish No.4 General Polished Directional polished finish for visible surfaces
Decorative / Project HL Hairline Long directional brushed appearance
High Gloss No.8 Mirror Finish High-gloss polished and buffed surface
Stainless steel sheet and plate surface finishes
Stainless Steel Surface Finish
Cold-Rolled Route

Thin Sheet & Plate

0.3–3.0 mm common procurement route
For thin stainless sheet or plate, 2D, 2B and BA are common choices. Send us the grade, thickness, width and required finish, and we can check the suitable coil and processing route. Common finishes: 2D · 2B · BA
Hot-Rolled Route

Industrial Plate

3.0 mm+ common plate procurement route
For heavier plate, annealed and pickled No.1 is the usual starting point. Let us know if the plate will be machined, welded or used with the mill surface left as supplied. Common finish: No.1 / annealed & pickled
Project Finish

Polished & Decorative

Specify Finish grit / Ra / direction if critical
For No.4, hairline or mirror surfaces, tell us if appearance is important. A target Ra, grit, polishing direction or reference sample helps us match the required finish more closely. Project finishes: No.4 · HL · No.8
Enquiry Support

Need a Specific Finish?

Send Your Requirement drawing / sample / finish target
Send us the grade, thickness, plate size and required finish. If the surface is drawing-controlled, include the target Ra, grit, direction or sample so we can review the workable route. Helpful details: Grade · Size · Finish · Ra · Direction · Film
Finish Definition The finish name does not always mean one exact Ra.
No.4 Ra generally ≤ 0.6 μm If roughness or appearance is controlled, include the required Ra so the polishing and acceptance basis can be checked.
Hairline / HL No universal Ra Specify grit, brushing direction or a reference sample when the final appearance needs to match a project requirement.
No.8 High-gloss mirror Produced through progressively finer polishing and buffing. A reference sample is useful for appearance-critical work.
2B / BA / No.1 Mill finish route These are mill-finish designations. Add a separate Ra requirement when your project specifically needs one.
Delivery Condition Annealed / Pickled / Cold Rolled Tell us the required condition if it is defined by your drawing or specification.
Protective Film With Film / Without Film Let us know which face needs film and whether a specific film is required.
Edge Condition Mill / Slit / Sheared / Cut Choose the edge condition to suit your welding, forming or machining route.
Surface Acceptance Finish / Ra / Direction / Sample Use measurable criteria or a sample when appearance or hygiene is important.
The same finish name can still look slightly different.
Polished surfaces can vary with the mill, abrasive sequence, grade, thickness and finishing equipment. If appearance or roughness is important, send the target Ra, grit, polishing direction or reference sample. We can then check the requirement against the actual grade, thickness and available finishing route before quotation.
Tell us the surface finish you need.
Grade Thickness 2B / BA / No.1 / No.4 / HL / No.8 Ra / Grit Protective Film Edge
Request Surface Finish & Price
Supply Routes & Mill Sources

Stainless Steel Plate Supply Routes & Mill Sources

Stainless steel plate can be supplied from cold-rolled coil, hot-rolled coil or independently rolled heavy plate. TiAlloy reviews the mill source against the actual grade, specification, dimensions, finish, quantity and delivery requirement before confirming the supply route.

Coil-Derived

Cold-Rolled Coil

CR Coil Leveling Cut-to-Length Sheet / Plate
Thin flat-product route Commonly reviewed for 2B, BA and other cold-rolled surfaces where coil width and finished sheet size match the required order.
Coil-Derived

Hot-Rolled Coil

HR Coil Anneal / Pickle Leveling No.1 Plate
General industrial plate route Used for many hot-rolled stainless plate orders where thickness, coil width and required cut length fit the available mill route.
Plate Mill

Quarto / Heavy Plate

Slab Plate Rolling Heat Treatment Project Plate
Thick / wide / project plate route Reviewed when grade, thickness, width or piece size moves beyond an ordinary coil-derived route. Availability is confirmed against the actual project.
Cooperating Mill Sources
TiAlloy stainless flat-product sourcing includes established supply channels from major Chinese and international stainless steel producers. Mill selection is order-specific; the names below do not mean every grade, thickness or size is available from every mill.
China TISCO 太钢 Hot-rolled, cold-rolled and project stainless plate sourcing routes.
China BAOSTEEL 宝钢 Stainless hot-rolled and cold-rolled flat-product supply routes.
South Korea POSCO 浦项 International stainless flat-product sourcing for applicable project requirements.
China TSINGSHAN 青山 Stainless coil and hot-rolled flat-product sourcing routes for applicable grades.
China DELONG 德龙 Hot-rolled and cold-rolled stainless coil routes for plate conversion.
China YONGJIN 甬金 Cold-rolled stainless coil, sheet and strip sourcing routes.
How the mill route is selected
Grade / UNS Product Standard Thickness Finished Width Surface Quantity Lead Time Mill Source

TiAlloy may quote available stock, material cut from coil, mill production or project-specific plate sourcing depending on the order. The quotation should identify the applicable supply route rather than treating these sources as equivalent.

Grade-specific sourcing routes
304 / 304L Plate 316L Plate 2205 Duplex Plate 2507 Super Duplex Plate
Need a specific stainless steel mill or supply route?
Send the grade, specification, actual plate size, quantity and preferred mill or country of origin. Mill availability will be confirmed with the quotation.
Request Mill Availability & Price
Cutting & Plate Processing

Stainless Steel Plate Cutting & Processing

Stainless steel plate can be supplied as full plate, cut-to-size material or drawing-based blanks. The cutting route is selected according to grade, thickness, finished geometry, tolerance and downstream fabrication requirements.

Processing Routes

Selected according to plate thickness and drawing requirement
Laser Cutting
Precision profiles and repeatable cut parts.
Profiles · Holes · Blanks
Plasma Cutting
Practical cutting route for medium and heavy plate.
Heavy Blanks · Shapes
Waterjet
Low heat-input cutting where thermal effects matter.
Profiles · Rings · Parts
Saw Cutting
Straight cuts and heavy rectangular plate blanks.
Blocks · Rectangular Blanks
Shearing / CTL
Straight cut-to-length processing for suitable gauges.
Sheet · Plate · Cut Size
Stainless steel plate cutting and processing
Stainless Steel Plate Processing
Additional plate preparation
Rings & Discs Drawing-Based Blanks Edge Preparation Beveling Drilling Machining Allowance
Cutting tolerance should be defined before processing.
Standard cut plate, precision blanks and machining-ready parts do not use the same dimensional acceptance. Provide the drawing or final dimensions with the RFQ when edge condition, hole position, profile tolerance, bevel or machining allowance is important.
Need stainless steel plate cut to drawing?
Send grade, plate thickness, finished dimensions, quantity and drawing. The suitable cutting and processing route can be reviewed with the quotation.
Request Cut Plate & Price
Applications & Fabrication Uses

Stainless Steel Plate Applications & Fabrication Uses

Stainless steel plate is used across process equipment, tanks, heat exchangers, hygienic equipment, marine structures and general fabrication. The end use affects the required grade, thickness, surface, fabrication route and inspection scope.

Stainless steel plate supplied for industrial fabrication
Stainless Steel Plate for Fabrication

Where Plate Requirements Change

Application determines more than grade alone.

Chemical & Process Equipment

Plate for process vessels, fabricated equipment, ducting and corrosion-service components.

Review: environment · welding · inspection · documentation

Tanks & Vessels

Flat plate for storage tanks, fabricated shells, covers and internal components.

Review: thickness · forming · weld route · applicable code

Heat Exchangers

Plate used for channel components, covers, baffles and fabricated heat-transfer equipment.

Review: fluid service · temperature · fabrication · testing

Food & Pharmaceutical Equipment

Sheet and plate for hygienic vessels, processing equipment and cleanable fabricated surfaces.

Review: surface finish · cleanliness · forming · weld finish

Marine & Offshore Fabrication

Stainless plate may be selected for fabricated structures and equipment exposed to marine environments.

Review: environment · grade · welding · inspection

Structural & General Fabrication

Cut plate, blanks and formed components for industrial frames, machinery and fabricated assemblies.

Review: strength · dimensions · cutting · machining allowance
Tell us how the plate will be fabricated
Bending / Forming · Welding · Machining · Pressure Service · Hygienic Surface · Inspection / NDT
Application alone does not define the specification.
Final material selection depends on the actual service environment, design code, fabrication route and project requirements. Pressure, corrosion or temperature service should be reviewed against the applicable grade and specification rather than selected from the application name alone.
Buying plate for a specific fabrication project?
Send the application, grade or specification, plate dimensions, quantity and fabrication requirements. TiAlloy can review the appropriate supply route with the quotation.
Request Plate Availability & Price
Inspection · MTC · Traceability

Stainless Steel Plate Inspection, MTC & Traceability

Inspection and documentation are reviewed against the ordered grade, specification, dimensions and required test scope before stainless steel plate is released for shipment.

Quality Release

Scope follows the specification and purchase order.
Material & Dimensions
Grade, specification, heat / lot, thickness, width, length, surface and material marking are reviewed against the order.
Testing
Chemical and mechanical results follow the applicable specification. PMI, UT, PT or additional inspection can be arranged when specified.
MTC & Documents
EN 10204 Type 3.1 documentation can be supplied as ordered. Type 3.2 and third-party witnessing are reviewed separately.
Document Scope
EN 10204 3.1  MTC PMI / NDT  when specified 3.2  project requirement
Release Evidence
Dimensional Record
Thickness, width and length checks can be recorded where dimensional inspection is included in the order.
Surface & Marking
Surface condition and material identification are reviewed before packing against the ordered condition.
Packing Match
Plate identification, MTC information and packing documentation should correspond to the released material.
Material Traceability
Heat / Lot Plate Marking MTC Packing List Shipment

Identification should remain consistent from material release through packing and shipment documentation.

MTC

Need MTC, PMI or additional inspection?

Send grade, plate size, quantity and required certification scope.

Request MTC & Inspection
Stainless Steel Plate RFQ

How to Specify a Stainless Steel Plate RFQ

A complete stainless steel plate enquiry lets grade, mill route, processing, testing and freight requirements be checked before quotation. Include the actual order details rather than only a grade name or nominal plate size.

Example — Quote-Ready Plate RFQ
316L / S31603 · ASTM A240 · 12 × 1500 × 6000 mm · No.1 · 8 Plates · EN 10204 3.1
Add destination, required delivery date and any special tolerance, inspection or preferred mill requirement to complete the quotation basis.
Stainless steel plate prepared for quotation and supply
Stainless Steel Plate RFQ
Material
Grade / UNS 304L / S30403 · 316L / S31603 · 2205 / S32205
Product Form Plate · Sheet · Coil · Strip
Standard ASTM / ASME / EN / Project Specification
Dimensions
Thickness Actual required thickness
Width × Length Finished plate size in mm
Quantity Pieces / plates or required total weight
Condition
Surface No.1 · 2B · BA · No.4 · HL · Other
Tolerance / Edge Standard or project-specific requirement
Processing Full plate · Cut-to-size · Blank · Profile
Quality & Delivery
Testing / Certification MTC 3.1 · PMI · UT · PT · 3.2 when specified
Destination City / country or delivery port
Required Date Target shipment or project need-by date
Drawing-based orders
For cut stainless steel plate, rings, blanks, drilled parts or profiles, send the drawing with the RFQ and identify finished dimensions, tolerance, edge condition, hole requirements and machining allowance where applicable.
RFQ

Send a quote-ready stainless steel plate enquiry

Grade · Standard · Dimensions · Quantity · Surface · Testing · Destination

Request Plate Size & Price
Container Loading & Export Shipment

Secure Container Loading for Stainless Steel Shipments

Before shipment, we check the container condition, packing stability and loading arrangement against the confirmed order. Each loading stage can be documented with photos to support quantity verification, cargo protection and shipment traceability.

01 Empty container inspection before loading=
Pre-Loading Check

Container Condition Inspection

The container floor, walls, doors and visible moisture condition are checked before packed materials enter the container.

02 Waterproof and moisture-resistant export packing for stainless steel
Cargo Protection

Waterproof & Moisture Protection

Export packages can include waterproof wrapping, protective barriers and moisture-control measures according to the agreed packing plan.

03 Stainless steel plate packages secured during container loading=
Loading Operation

Controlled Cargo Placement

Packages are positioned according to cargo weight, package dimensions and the planned unloading sequence.

04 Stainless steel coil secured inside an export container
Transit Security

Blocking, Bracing & Securing

Appropriate supports, blocking and securing measures are selected to limit cargo movement during inland and ocean transportation.

05 Final quantity and packing check for stainless steel shipment
Final Verification

Package & Quantity Check

Package marks, visible condition and loaded quantities are checked against the confirmed packing and shipment information.

06 Sealed export container ready for stainless steel shipment
Shipment Release

Door Closing & Seal Record

Final loading photos and the container seal information can be recorded before the shipment leaves the loading site.

Loading Records for Clearer Shipment Verification

Before Loading Container and visible package-condition check
During Loading Cargo placement and securing records
Before Release Final loading view and container seal record
Discuss Your Packing Requirements
Stainless Steel Plate & Sheet Grade Database

Stainless Steel Plate & Sheet Chemical Composition by Grade

Compare common stainless steel plate and sheet grades by principal alloying elements. Select a family on the left; the colored bars give a quick visual read while the values below each grade show the specified chemistry range.

C Si Mn Ni Cr Mo Cu Ti Nb N W Al P S Fe

01 · Austenitic Stainless Steel

201

S20100
C Si Mn Ni Cr N Fe
C ≤0.15% Si ≤1.00% Mn 5.50–7.50% Ni 3.50–5.50% Cr 16.00–18.00% N ≤0.25% Fe Balance

202

S20200
C Si Mn Ni Cr N Fe
C ≤0.15% Si ≤1.00% Mn 7.50–10.00% Ni 4.00–6.00% Cr 17.00–19.00% N ≤0.25% Fe Balance

301

S30100
C Si Mn Ni Cr Fe
C ≤0.15% Si ≤1.00% Mn ≤2.00% Ni 6.00–8.00% Cr 16.00–18.00% Fe Balance

302

S30200
C Si Mn Ni Cr Fe
C ≤0.15% Si ≤0.75% Mn ≤2.00% Ni 8.00–10.00% Cr 17.00–19.00% Fe Balance

303

S30300
C Si Mn P S Ni Cr Fe
C ≤0.15% Si ≤1.00% Mn ≤2.00% P ≤0.20% S ≥0.15% Ni 8.00–10.00% Cr 17.00–19.00% Fe Balance

304

S30400
C Si Mn Ni Cr N Fe
C ≤0.08% Si ≤0.75% Mn ≤2.00% Ni 8.00–10.50% Cr 18.00–20.00% N ≤0.10% Fe Balance

304L

S30403
C Si Mn Ni Cr N Fe
C ≤0.030% Si ≤0.75% Mn ≤2.00% Ni 8.00–12.00% Cr 18.00–20.00% N ≤0.10% Fe Balance

304H

S30409
C Si Mn Ni Cr Fe
C 0.04–0.10% Si ≤0.75% Mn ≤2.00% Ni 8.00–10.50% Cr 18.00–20.00% Fe Balance

304N

S30451
C Ni Cr N Fe
C ≤0.08% Ni 8.00–10.50% Cr 18.00–20.00% N 0.10–0.16% Fe Balance

304LN

S30453
C Ni Cr N Fe
C ≤0.030% Ni 8.00–12.00% Cr 18.00–20.00% N 0.10–0.16% Fe Balance

309S

S30908
C Ni Cr Fe
C ≤0.08% Ni 12.00–15.00% Cr 22.00–24.00% Fe Balance

309H

S30909
C Ni Cr Fe
C 0.04–0.10% Ni 12.00–15.00% Cr 22.00–24.00% Fe Balance

310S

S31008
C Si Ni Cr Fe
C ≤0.08% Si ≤1.50% Ni 19.00–22.00% Cr 24.00–26.00% Fe Balance

310H

S31009
C Si Ni Cr Fe
C 0.04–0.10% Si ≤1.50% Ni 19.00–22.00% Cr 24.00–26.00% Fe Balance

316

S31600
C Ni Cr Mo Fe
C ≤0.08% Ni 10.00–14.00% Cr 16.00–18.00% Mo 2.00–3.00% Fe Balance

316L

S31603
C Ni Cr Mo Fe
C ≤0.030% Ni 10.00–14.00% Cr 16.00–18.00% Mo 2.00–3.00% Fe Balance

316H

S31609
C Ni Cr Mo Fe
C 0.04–0.10% Ni 10.00–14.00% Cr 16.00–18.00% Mo 2.00–3.00% Fe Balance

316LN

S31653
C Ni Cr Mo N Fe
C ≤0.030% Ni 10.00–14.00% Cr 16.00–18.00% Mo 2.00–3.00% N 0.10–0.16% Fe Balance

316Ti

S31635
C Ni Cr Mo Ti Fe
C ≤0.08% Ni 10.00–14.00% Cr 16.00–18.00% Mo 2.00–3.00% Ti Stabilized Fe Balance

317L

S31703
C Ni Cr Mo Fe
C ≤0.030% Ni 11.00–15.00% Cr 18.00–20.00% Mo 3.00–4.00% Fe Balance

321

S32100
C Ni Cr Ti Fe
C ≤0.08% Ni 9.00–12.00% Cr 17.00–19.00% Ti Stabilized Fe Balance

321H

S32109
C Ni Cr Ti Fe
C 0.04–0.10% Ni 9.00–12.00% Cr 17.00–19.00% Ti Stabilized Fe Balance

347

S34700
C Ni Cr Nb Fe
C ≤0.08% Ni 9.00–13.00% Cr 17.00–19.00% Nb+Ta Stabilized Fe Balance

347H

S34709
C Ni Cr Nb Fe
C 0.04–0.10% Ni 9.00–13.00% Cr 17.00–19.00% Nb+Ta Stabilized Fe Balance

02 · Super Austenitic & High-Alloy Stainless Steel

253MA

S30815
C Si Ni Cr N Fe
C 0.05–0.10% Si 1.40–2.00% Ni 10.00–12.00% Cr 20.00–22.00% N 0.14–0.20% Fe Balance

904L

N08904
C Ni Cr Mo Cu Fe
C ≤0.020% Ni 23.00–28.00% Cr 19.00–23.00% Mo 4.00–5.00% Cu 1.00–2.00% Fe Balance

S31254

254 SMO
C Ni Cr Mo Cu N Fe
C ≤0.020% Ni 17.50–18.50% Cr 19.50–20.50% Mo 6.00–6.50% Cu 0.50–1.00% N 0.18–0.22% Fe Balance

926

N08926
C Ni Cr Mo Cu N Fe
C ≤0.020% Ni 24.00–26.00% Cr 19.00–21.00% Mo 6.00–7.00% Cu 0.50–1.50% N 0.15–0.25% Fe Balance

AL-6XN

N08367
C Ni Cr Mo N Fe
C ≤0.030% Ni 23.50–25.50% Cr 20.00–22.00% Mo 6.00–7.00% N 0.18–0.25% Fe Balance

S32654

654 SMO
C Mn Ni Cr Mo N Fe
C ≤0.020% Mn 2.00–4.00% Ni 21.00–23.00% Cr 24.00–25.00% Mo 7.00–8.00% N 0.45–0.55% Fe Balance

03 · Duplex & Super Duplex Stainless Steel

2101

S32101
C Mn Ni Cr Mo N Fe
C ≤0.040% Mn 4.00–6.00% Ni 1.35–1.70% Cr 21.00–22.00% Mo 0.10–0.80% N 0.20–0.25% Fe Balance

2304

S32304
C Ni Cr Mo N Fe
C ≤0.030% Ni 3.00–5.50% Cr 21.50–24.50% Mo 0.05–0.60% N 0.05–0.20% Fe Balance

S31803

Duplex
C Ni Cr Mo N Fe
C ≤0.030% Ni 4.50–6.50% Cr 21.00–23.00% Mo 2.50–3.50% N 0.08–0.20% Fe Balance

2205

S32205
C Ni Cr Mo N Fe
C ≤0.030% Ni 4.50–6.50% Cr 22.00–23.00% Mo 3.00–3.50% N 0.14–0.20% Fe Balance

S32550

S32550
C Ni Cr Mo Cu N Fe
C ≤0.040% Ni 4.50–6.50% Cr 24.00–27.00% Mo 2.90–3.90% Cu 1.50–2.50% N 0.10–0.25% Fe Balance

2507

S32750
C Ni Cr Mo N Fe
C ≤0.030% Ni 6.00–8.00% Cr 24.00–26.00% Mo 3.00–5.00% N 0.24–0.32% Fe Balance

S32760

Super Duplex
C Ni Cr Mo Cu W N Fe
C ≤0.030% Ni 6.00–8.00% Cr 24.00–26.00% Mo 3.00–4.00% Cu 0.50–1.00% W 0.50–1.00% N 0.20–0.30% Fe Balance

04 · Ferritic Stainless Steel

405

S40500
C Cr Al Fe
C ≤0.08% Cr 11.50–14.50% Al 0.10–0.30% Fe Balance

409L

S40903
C Cr Ti Fe
C ≤0.030% Cr 10.50–11.75% Ti Stabilized Fe Balance

430

S43000
C Si Mn Cr Fe
C ≤0.12% Si ≤1.00% Mn ≤1.00% Cr 16.00–18.00% Fe Balance

430F

S43020
C S Cr Fe
C ≤0.12% Cr 16.00–18.00% S ≥0.15% Fe Balance

434

S43400
C Cr Mo Fe
C ≤0.12% Cr 16.00–18.00% Mo 0.75–1.25% Fe Balance

436

S43600
C Cr Mo Nb Fe
C ≤0.12% Cr 16.00–18.00% Mo 0.75–1.25% Nb Stabilized Fe Balance

439

S43035
C Cr Ti Fe
C ≤0.030% Cr 17.00–19.00% Ti Stabilized Fe Balance

441

S44100
C Cr Ti Nb Fe
C ≤0.030% Cr 17.50–19.50% Ti/Nb Stabilized Fe Balance

444

S44400
C Cr Mo Ti Nb Fe
C ≤0.025% Cr 17.50–19.50% Mo 1.75–2.50% Ti/Nb Stabilized Fe Balance

446

S44600
C Cr Fe
C ≤0.20% Cr 23.00–27.00% Fe Balance

05 · Martensitic Stainless Steel

403

S40300
C Cr Fe
C ≤0.15% Cr 11.50–13.00% Fe Balance

410

S41000
C Cr Fe
C ≤0.15% Cr 11.50–13.50% Fe Balance

410S

S41008
C Cr Fe
C ≤0.08% Cr 11.50–13.50% Fe Balance

414

S41400
C Ni Cr Fe
C ≤0.15% Ni 1.25–2.50% Cr 11.50–13.50% Fe Balance

416

S41600
C S Cr Fe
C ≤0.15% S ≥0.15% Cr 12.00–14.00% Fe Balance

420

S42000
C Cr Fe
C ≥0.15% Cr 12.00–14.00% Fe Balance

422

S42200
C Cr Mo W Fe
C 0.20–0.25% Cr 11.00–12.50% Mo 0.75–1.25% W 0.75–1.25% Fe Balance

431

S43100
C Ni Cr Fe
C ≤0.20% Ni 1.25–2.50% Cr 15.00–17.00% Fe Balance

440A

S44002
C Cr Mo Fe
C 0.60–0.75% Cr 16.00–18.00% Mo ≤0.75% Fe Balance

440B

S44003
C Cr Mo Fe
C 0.75–0.95% Cr 16.00–18.00% Mo ≤0.75% Fe Balance

440C

S44004
C Cr Mo Fe
C 0.95–1.20% Cr 16.00–18.00% Mo ≤0.75% Fe Balance

06 · Precipitation-Hardening & High-Strength Stainless Steel

17-4PH

S17400
C Ni Cr Cu Nb Fe
C ≤0.07% Ni 3.00–5.00% Cr 15.00–17.50% Cu 3.00–5.00% Nb+Ta 0.15–0.45% Fe Balance

15-5PH

S15500
C Ni Cr Cu Nb Fe
C ≤0.07% Ni 3.50–5.50% Cr 14.00–15.50% Cu 2.50–4.50% Nb+Ta 0.15–0.45% Fe Balance

17-7PH

S17700
C Ni Cr Al Fe
C ≤0.09% Ni 6.50–7.75% Cr 16.00–18.00% Al 0.75–1.50% Fe Balance

PH15-7Mo

S15700
C Ni Cr Mo Al Fe
C ≤0.09% Ni 6.50–7.75% Cr 14.00–16.00% Mo 2.00–3.00% Al 0.75–1.50% Fe Balance

13-8Mo

S13800
C Ni Cr Mo Al Fe
C ≤0.05% Ni 7.50–8.50% Cr 12.25–13.25% Mo 2.00–2.50% Al 0.90–1.35% Fe Balance

XM-19

S20910
C Mn Ni Cr Mo N Fe
C ≤0.06% Mn 4.00–6.00% Ni 11.50–13.50% Cr 20.50–23.50% Mo 1.50–3.00% N 0.20–0.40% Fe Balance

S21800

S21800
C Si Mn Ni Cr N Fe
C ≤0.10% Si 3.50–4.50% Mn 7.00–9.00% Ni 8.00–9.00% Cr 16.00–18.00% N 0.08–0.18% Fe Balance

Chemical composition is shown in weight percent. The colored bars are intended only as a visual comparison of the principal alloying elements and are not drawn as a certification-scale representation. Fe indicates balance. Exact chemical limits must be verified against the governing product specification and edition, such as ASTM A240 / A240M (plate, sheet & strip, including duplex grades), ASTM A480 / A480M (general requirements for flat-rolled products), ASTM A666 (cold-rolled sheet, strip, plate & flat bar for structural & pressure vessel applications) or the applicable project standard, before quotation, production or material certification.

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