ALLOY 718

Inconel 718 Sheet, Tube, Pipe, Rod and Bar Supplier

UNS N07718

Alloy 718 / 2.4668 grade family

TiAlloy supplies Alloy 718 / UNS N07718 / W.Nr. 2.4668 for buyers who need the correct form, standard, heat treatment condition and inspection documents before a purchase order is placed.

Request Inconel 718 Quote Check Form And Standard

Alloy 718 bar, rod, sheet, plate, tube and pipe requests are checked by product form before quotation.

6 forms

Sheet, plate, tube, pipe, rod, bar

20+ years

Metal manufacturing experience

30,000+ m2

Production base stated by TiAlloy

ASTM / AMS

Quote by current buyer standard

Inconel 718 industrial application and forms

Inconel 718 Supply Scope for Engineering Buyers

Material Specs & Ordering Pitfalls

Inconel 718 is a precipitation-hardened nickel alloy used when high strength, yield strength retention, oxidation resistance and controlled heat treatment matter. From a buying perspective, the grade name alone doesn’t specify enough; the order still requires Inconel 718 sheet, plate, tubing, pipe, round bar, rod or bar stock.

This is where most orders fail. Broad form claims break down when tube, pipe, plate and bar standards are mixed, because an AMS tubing line, an ASTM pipe callout and an ASTM B637 bar order do not prove the same thing. TiAlloy’s form check is followed by a standard check and then a document check to prevent supplying the right alloy in the wrong condition.

Buyers looking for Inconel 718 properties often want to map a datasheet to an RFQ. A realistic answer is that Alloy 718 can fit aerospace, gas turbine, chemical, cryogenic and high temperature industrial components, but the final material callout still requires standard revision, size, heat treatment condition, inspection level and service environment.

Buyer note: This is the honest version: TiAlloy can quote Inconel 718 suppliers’ common forms, but it should not promise that every form, condition, aerospace approval or sour-service rule is covered without seeing the drawing or standard.

For a low-friction inquiry: please supply drawing, target standard, and quantity. TiAlloy can advise whether your query is likely sheet/plate, tube/pipe or bar/rod supply before providing an estimate.

Send Drawing For Check

Common RFQ Inputs

Grade Inconel 718, Alloy 718, UNS N07718 or 2.4668
Form sheet, plate, tube, pipe, rod, round bar, or bar stock
Standard ASTM B670, ASTM B637, ASTM B983, AMS 5596, AMS 5589, AMS 5662, or AMS 5663
Size Thickness, O.D., wall, length, cut size, or machining allowance
Condition annealed, solution treated, aged or precipitation hardened
Documents MTC, heat number, PMI, ultrasonic, export, certificate

718 Form-to-Standard Matrix

Use the 718 Form-to-Standard Matrix as the purchasing anchor of this page. It converts a general Inconel 718 requirement into a checkable order path for our engineers to price. This is a trade-off: while a quick, brief RFQ might feel faster upfront, a single-line grade request often leads to 2 or 3 rounds of clarification because the standard, size and heat treatment condition are missing.

For purchase orders, the honest check is to confirm against the named product form first, then the standard revision, because a buyer can use the right alloy name and still request the wrong mill product.

This matrix is a tool for your initial RFQ, not for final engineering review. Your purchase order will ultimately be governed by the most current standard revision, end-use requirements, and your specifications.

718 Alloy Form Specification Environment

Product Form	Common Standard Anchor	Quote Condition to Confirm	Buyer Risk if Skipped
Sheet	AMS 5596, ASTM B670	Thickness, temper, surface, cut size and revision	Wrong sheet gauge or annealed condition selected for a high strength part
Plate	ASTM B670; AMS scope only when thickness and revision fit	Plate thickness, flatness, ultrasonic test and cut allowance	Plate demand mapped to a sheet/strip rule without thickness review
Strip or coil	ASTM B670, AMS 5596 / 5597 where specified	Width, thickness, edge, coil weight and temper	Slitting tolerance or edge condition missed before production
Tube	AMS 5589, AMS 5590, ASTM B983 by project	Outside diameter, wall, length, solution treatment, test method	Tubing and pipe words used as if they had one standard meaning
Pipe	ASTM B983 for UNS N07718 high-strength pipe/tube scope	Nominal size, schedule or wall, test pressure and descaling	High-pressure line request quoted without pressure or test basis
Rod	ASTM B637, AMS 5662	Diameter, straightness, cut length, annealed or age-ready condition	Machining allowance missing on shafts or connectors
Round bar	ASTM B637, AMS 5662, AMS 5663	Diameter, max cross-section, heat treatment and hardness	AMS 5663 assumed for every bar even when geometry or condition differs
Forging stock	ASTM B637, AMS 5662 / 5663 by buyer drawing	Stock size, grain flow requirement, forging route and inspection	Bar stock ordered where forging stock was intended
Fastener stock	Raw material: ASTM B637 / AMS 5662; finished bolting: ASTM A1014/A1014M or SAE AS4877	Raw stock or finished bolt, thread forming, full-size tensile test	Raw bar treated as finished aerospace bolts without bolting rule review
Cut-to-size blanks	Parent material standard plus drawing callout	Cut method, tolerance, deburring, marking and packing	Material is correct, but part preparation does not fit downstream machining

Where Inconel 718 Fits: Aerospace, Energy, Chemical and Cryogenic Parts

Local TiAlloy products are listed as aircraft engine structural plates, gas turbine casing blanks, aircraft engine high pressure line material, space propulsion piping, hydraulic tubing, cryogenic tanks, shafts, and high pressure mechanical components. This range is valid, but it’s important not to blindly transfer every high-temperature or corrosion resistance statement to the approval notes.

Service environment is the next consideration. Inconel 718 is not automatically the right corrosion answer when the real issue is crevice corrosion, sour gas or H2S cracking. NASA studies have shown that gaseous hydrogen embrittlement in Inconel 718 depends on forming operation and heat treatment. ISO 15156-1:2020 treats H2S oil and gas service as a separate cracking-resistance selection problem, not a generic corrosion term. Sour-service RFQs need to specify the relevant project rule in addition to H2S qualification.

For TiAlloy, the honest limit is material support; service approval must confirm against the buyer’s pressure, chemistry, stress and project standard.

Discussions with customers on aerospace and gas turbine components commonly focus on tensile strength, yield strength, creep rupture data, hardness, heat treatment and traceable standards. Discussions on chemical and energy sector parts, on the other hand, may revolve around corrosion resistance, oxidation resistance, temperature, the chemistry of the medium, the operating pressure and whether the part is a raw material or a final product. Inquiries for cryogenic tanks and cryogenic structural tubing should include a specification of the test rule, the design temperature and the inspection plan.

Nickel alloy plate stock for Inconel 718 sheet and plate inquiries

Sheet and plate RFQs need thickness, standard and inspection detail.

Nickel alloy tube for Inconel 718 tubing and pipe inquiries

Tube and pipe orders need wall, test and pressure context.

Inconel 718 bar stock for shafts and fastener stock

Round bar and rod orders need diameter, condition and machining allowance.

Tell TiAlloy about the media, the temperature, pressure and how the part is used. This information will allow the quote to include the appropriate qualification, rather than a general statement.

Send Service Conditions

Design and Machining Considerations for Inconel 718

Choose the Right Product Form Before RFQ

A buyer can lose time or money by pushing for a lower Alloy 718 unit price while purchasing the wrong part form. Plate, Alloy 718 tube and Inconel 718 bar stock may all belong to the UNS N07718 family, but each carries different risk because geometry, standard and downstream manufacturing route interact differently.

Alloy 718 machining becomes expensive when the ordered material leaves little room for later turning, grinding or rework. Machinists have reported slow cutting, tool wear and setup sensitivity in forum discussions. That doesn’t create a design rule, but it explains why TiAlloy asks for machining allowance, finish, hardness and straightness before quoting bar.

A common trap is treating every UNS N07718 request as interchangeable; TiAlloy engineers confirm against form, allowance and finish before pricing the lot.

When a buyer asks about Inconel 718 vs 625, there’s no universal answer to which is better. If high strength, precipitation hardening and creep strength are the primary design drivers, Alloy 718 is often specified. Alloy 625 tends to be more common when corrosion properties and weldability are more important. Before TiAlloy discusses substitution, the application is assessed by load, temperature, medium and relevant standard.

Flat aerospace bracket or casing blank

Need in the drawing Flat aerospace bracket or casing blank

Start with this form Sheet or plate

Ask TiAlloy to confirm AMS 5596 / ASTM B670 fit, thickness, flatness, cut tolerance

High-pressure line or instrument tube

Need in the drawing High-pressure line or instrument tube

Start with this form Tube or pipe

Ask TiAlloy to confirm AMS 5589, AMS 5590 or ASTM B983, wall, test method

Shaft, connector or fastener stock

Need in the drawing Shaft, connector or fastener stock

Start with this form Rod, round bar or bar stock

Ask TiAlloy to confirm ASTM B637, AMS 5662, AMS 5663, diameter, condition, hardness

Cryogenic structural support

Need in the drawing Cryogenic structural support

Start with this form Plate, tube or bar by drawing

Ask TiAlloy to confirm Design temperature, test rule, inspection lot and marking

Custom cut blank for later machining

Need in the drawing Custom cut blank for later machining

Start with this form Parent sheet, plate or bar

Ask TiAlloy to confirm Oversize allowance, burr control, marking, packing route

Form Selection Red Flags

“718 bar” with no diameter, condition or AMS/ASTM rule
‘pipe’ for hollow items lacking a pressure test or specific wall thickness test requirement.
‘plate’ obtained by copying the specs from an AMS sheet form without verifying the wall thickness.
‘fasteners’ specification requested even though only the base round bar material is requested on the quote.
“Hydrogen service” written without pressure, temperature or approval path

Submit your part form, including the machining allowance, to TiAlloy so we can indicate whether the RFQ is for a sheet, tube, pipe, rod, or bar prior to developing a price quote.

Send Form Details

Processing, Heat Treatment and Inspection Workflow

TiAlloy’s production equipment can accommodate all stages from melt through finished bar. Processes include: VIM, VAR, ESR, hot forge, rolling mill, heat treatment, tube mill, bar finishing, plate finishing and surface finishing. Typical downstream processes include solution annealing, bright annealing, pickling and passivation, turning, grinding, chamfering, cutting, centerless grinding, sawing, CNC machining and packaging.

That factory list only matters when it’s tied to order control. For Inconel 718, heat treatment and precipitation hardening shape mechanical properties. If a buyer needs tensile strength, yield strength, elongation, hardness or stress rupture testing, the RFQ should say so before production starts. Otherwise, the material may be correct by grade and still miss the inspection evidence the receiving team needs.

For inspection planning, the honest constraint is that equipment capacity does not certify a lot by itself; TiAlloy engineers confirm against the order standard because receiving teams approve documents, tests and traceability.

Grade and form check +

TiAlloy confirms Alloy 718 / UNS N07718 / 2.4668, product form, size unit and requested standard revision.

Melt and route review +

Engineers check whether VIM, VAR, ESR, forging, rolling or tube processing is relevant for the requested lot.

Heat treatment plan +

Condition is confirmed: annealed, solution treated, aged, precipitation hardened or buyer-specific route.

Inspection hold points +

PMI, chemical analysis, mechanical testing, ultrasonic test or hydrostatic/electric test are mapped to the order.

Cutting and finishing +

Sheet, plate, tube, pipe, rod and bar can be cut, straightened, polished, peeled or ground when requested.

Export packing +

Marking, bundle control, MTC, certificate copies and export documents are prepared for the shipment route.

Melting route for nickel alloy production

Melting and remelting route review.

Forging route for nickel alloy bar and billet production

Forging and forming control.

Heat treatment equipment for alloy condition control

Heat treatment and inspection planning.

Process review: Ask for MTC, heat number, test items and packaging notes with the quote. It’s easier to build them into the order than to add them after production.

Request MTC And Process Notes

TiAlloy Manufacturing and Export Capability

A practical differentiator is not a broad country list. It is the ability to discuss export documents, packing, marking and certificate wording before the order is released.

TiAlloy positions itself as a metal material supplier with 20+ years of manufacturing experience and a 30,000+ m2 production base. Company coverage includes titanium alloys, stainless steel and nickel alloys, with sheet, plate, tube, pipe, rod and bar supply for aerospace, chemical processing, energy, marine engineering, medical and general industrial equipment.

For an Inconel 718 order, this matters in 3 practical ways. First, a multi-form inquiry can stay with one technical and export team instead of being split across unrelated suppliers. Second, the production route can be discussed with the standard rather than after the price is set. Third, material traceability delays approvals when certs are incomplete, so MTC and inspection documents belong in the quote request.

TiAlloy’s export markets include Europe, Southeast Asia, the Middle East, South America, Japan and Korea. That export experience doesn’t replace buyer compliance review. It does make the RFQ conversation more concrete: packing, marking, document copies, certificate language and shipment timing can be discussed before the purchase order.

Capability Signals To Request

ISO certificate copies matched to the legal entity
Heat/lot traceability and mill test certificate
PMI, mechanical test, hardness and inspection reports as specified
Export packing photos or packing method for long bars and tubes
Current standard revision used for the quote

Cert Note

Certification note: the user materials mention ISO9001 quality, environmental and occupational health/safety management files. Final certificate display should match the exact certificate holder and certificate scope before publication.

Doc Check

Document check: Share the destination, Incoterms, certificate wording and any customer audit items. TiAlloy can answer with the quote instead of after shipment planning.

Ask For Export Document List

What Affects Inconel 718 Price and Lead Time?

Inconel 718 price should be quoted, not guessed. A cheap price per kg can hide standard revision or heat treatment mismatch, especially when the inquiry lacks form, size, testing and document needs. The common assumption is that the lowest unit price is the best commercial result. In nickel alloy supply, the trade-off is different: the lowest line item can become expensive if the lot fails receiving inspection or needs new documents.

Public price context is limited. LME Nickel is useful as a nickel market reference, and Special Metals publishes an alloy surcharge line for INCONEL alloy 718. Those sources show why metal value moves, but they don’t set TiAlloy’s final price. A quote still depends on sheet thickness, plate cut plan, tube wall, pipe test, round bar diameter, bar stock condition, heat treatment, quantity, finishing, testing, packing and route.

ROI card tier: Bronze. No public source supports a precise ROI percentage for this supply page. Safe buyer value means reduced rework risk, clearer standard matching and fewer document delays, not a made-up payback number.

01 / Product form

What TiAlloy checks Sheet, plate, tube, pipe, rod, round bar or bar stock

Why it changes risk Different form means different yield, tooling, testing and packing

02 / Size and tolerance

What TiAlloy checks Thickness, OD, wall, length, cut size, straightness, flatness

Why it changes risk Tight tolerance can add processing and inspection time

03 / Standard revision

What TiAlloy checks ASTM, AMS, ASME or customer spec date

Why it changes risk Wrong revision can block receiving approval

04 / Condition

What TiAlloy checks Annealed, solution treated, aged, precipitation hardened

Why it changes risk Heat treatment affects mechanical properties and delivery route

05 / Testing

What TiAlloy checks PMI, chemical, tensile, yield, hardness, ultrasonic, hydrostatic/electric

Why it changes risk Testing adds cost but reduces dispute risk

06 / Market input

What TiAlloy checks Nickel and alloy surcharge context

Why it changes risk Metal value may shift before a large order closes

07 / Export route

What TiAlloy checks Packing, marking, document set and destination

Why it changes risk Shipment needs change lead time and paperwork

Quote-ready request: Send form, size, quantity, standard revision, condition, test items and destination. TiAlloy can return a cleaner price and lead-time answer.

Request Price And Lead Time

Request a Quote With Complete Technical Details

A good RFQ isn’t long, but it does need to be specific. TiAlloy can give a quicker answer when a request contains 8 items: grade, form, standard, dimension, quantity, condition, inspection documents and destination. Leaving one item out can often result in a 24-48 hour clarification cycle for international buyers.

Material traceability delays approvals when certificates are incomplete. This is why TiAlloy’s quote path asks for the certificate and inspection package along with the price. It also helps prevent a buyer from assuming that UNS N07718 alone validates AMS 5589, AMS 5596, AMS 5662, AMS 5663, ASTM B637 or ASTM B983 compliance.

For RFQs, the honest shortcut is not to skip details. Send the details once, so TiAlloy can confirm against the form, standard and document package before quoting.

Grade

UNS N07718, Alloy 718, Inconel 718, 2.4668, or buyer internal material code.

Form

Rod, sheet, tubing, pipe, plate, bar stock, round bar

Standard

ASTM B983, AMS 5596, ASTM B637, AMS 5662, ASTM B670, AMS 5589, AMS 5590, AMS 5663, drawing specific rule.

Dimensions

Thickness, width, length, quantity, outside diameter, wall, tolerance, cut size.

Condition

Annealed, solution treated, aged or precipitation hardened.

Inspection

PMI, mechanical properties, tensile strength, chemical analysis, yield strength, ultrasonic test, hardness.

Documents

Export paperwork, Mill test certificate, heat number, certificate of conformity, packing list.

Service

Aerospace, chemical, energy, marine, medical, cryogenic, gas turbine, general industrial.

Copy This RFQ Pattern

Material: Inconel 718 / UNS N07718
Form: round bar, cut length 2,000 mm, 45 mm diameter
Standard: ASTM B637-26 or buyer-approved equivalent
Condition: Solution treated and aged, MTC confirm hardness.
Quantity: 800 kg trial order plus export packing
Destination: Port and Incoterms to be confirmed

Request MTC And Stock List Send Standard For Cross-Check

Inconel 718 Assessment Tools

Sys. Module // 01

Price & Lead Time Estimator

Evaluate core cost drivers and delivery timelines based on material parameters.

Run Estimator

Sys. Module // 02

RFQ Readiness Checker

Validate your inquiry details and specifications before submission.

Check Readiness

Sys. Module // 03

Form & Standard Selector

Match physical forms with certified industry standards and revisions.

Select Standard

Inconel 718 FAQ

FAQ answers below are derived from supplier searches in machining forums, buyer search terms and standards review. Direct answers avoid the risk of a costly receiving, service or machining shortcut.

TiAlloy engineers use these answers to confirm against form, standard, service condition and document scope before turning a question into a quotation.

FAQ.01

Can TiAlloy supply Inconel 718 sheet, tube and bar in one order?

Yes, we can quote sheet, tubing, plate, rod, pipe and tube. However the standards for flat product, hollow product and bar/rod product will need to be segregated.

FAQ.02

Is Inconel 718 tubing the same as Inconel 718 pipe?

Not always. Buyer searches frequently mix terminology, but your request must identify OD, wall thickness, pressure basis and whether ASTM B983, AMS 5589, AMS 5590 or another standard is required.

FAQ.03

Why does TiAlloy ask for machining allowance on round bar?

Machinists may have work hardening and tool wear to contend with on Alloy 718 machining inquiries. Extra stock may be needed for cleanup, and that requirement should be set before cutting.

FAQ.04

Can TiAlloy quote finished Inconel 718 bolts?

Fastener stock or raw material can be discussed with TiAlloy. If you are looking for finished bolting in accordance with a specification such as ASTM A1014/A1014M or SAE AS4877, that request will follow a separate quote path.

FAQ.05

Is Alloy 718 safe for hydrogen or sour-service oil and gas work?

No, not without review. NASA hydrogen work and ISO 15156-1:2020 show why H2S and hydrogen service need separate evaluation. Please submit the project standard, medium chemistry, temperature, pressure, approval rule and stress level.

FAQ.06

What documents should be requested with Inconel 718 suppliers?

Request the chemical analysis, mill test certificate, standard revision, heat number, certificate of conformity, inspection requirements, mechanical properties and packing list. Please include any required customer and compliance clauses early in your RFQ, particularly if the order is for aerospace or defense projects.