Summary sheet
NiCr19Fe19Nb5Mo3 at a glance
| Alloy type | Precipitation-hardenable nickel–chromium–iron superalloy, strengthened by γ″ (Ni3Nb) with secondary γ′ (Ni3(Al,Ti)) |
|---|---|
| EN designation | NiCr19Fe19Nb5Mo3 · W.-Nr. 2.4668 |
| Other designations | UNS N07718 · ISO NiCr19Nb5Mo3 · AFNOR NC19FeNb · BS NA 51 · GB GH4169 |
| Trade names | Inconel® 718, Nicrofer 5219 Nb, Haynes 718, Pyromet 718, Udimet 718, Superimphy 718 and BÖHLER L718 all designate this alloy |
| Density | 8.19–8.22 g/cm3 (0.297 lb/in3) |
| Melting range | 1260–1336 °C (2300–2437 °F) |
| Service range | −253 °C to approx. 700 °C (sustained load: approx. 650 °C) |
| Strength when aged | Rm ≥ 1275 MPa, Rp0.2 ≥ 1034 MPa (AMS 5663) |
| Magnetic | Non-magnetic at room temperature (Curie point below −112 °C). Surface NDT is by liquid penetrant, not magnetic particle |
| Delivery conditions | Solution annealed (AMS 5662) · solution treated + double aged (AMS 5663) · oilfield aged (API 6A718 / API 6ACRA) |
| Forms we forge | Seamless rolled rings, discs, shafts, bars, flanges, tube sheets, sleeves, bushings, blocks, valve bodies and stems |
| Piece weight | approx. 5 kg – 5,000 kg |
| Certification | EN 10204 3.1 as standard, 3.2 with SGS / BV / TÜV / Lloyd's witness on request |
| Quotation time | 24–48 hours from receipt of drawing and specification |
Reading the numbers. Values on this page are specification minima or published typical values for wrought Alloy 718, given for selection and design guidance. The binding figures for any delivery are those recorded on the order and on the EN 10204 certificate that ships with the forging.
Designations and standards
Designations, equivalents and governing standards
This alloy reaches us under a dozen different names on drawings. They all describe one material; what changes is the certifying standard and the heat-treatment condition. If a drawing calls out 2.4668, N07718, Alloy 718 or GH4169, we forge it from the same route.
| System | Designation | Notes |
|---|---|---|
| EN / DIN | NiCr19Fe19Nb5Mo3 · 2.4668 | Chemical name and material number used across Europe |
| UNS (USA) | N07718 | Used by ASTM, ASME and API |
| ISO | NiCr19Nb5Mo3 | ISO short chemical designation |
| AFNOR (France) | NC19FeNb | French national designation |
| BS (UK) | NA 51 | British aerospace / nickel alloy series |
| GB (China) | GH4169 (GH169) | Chinese superalloy designation, chemistry equivalent |
| Trade names | Inconel® 718 | Inconel is a registered trademark of Special Metals Corporation; certify as Alloy 718, 2.4668 or N07718 |
| Standard | Scope | What it fixes |
|---|---|---|
| ASTM B637 / ASME SB-637 | Precipitation-hardening nickel alloy bars, forgings and forging stock for high-temperature service | Chemistry, heat treatment, tensile and hardness requirements |
| AMS 5662 | Bars, forgings and rings, solution heat treated | Annealed supply condition for further machining or forming |
| AMS 5663 | Bars, forgings and rings, solution treated and precipitation hardened | Rm ≥ 1275 MPa, Rp0.2 ≥ 1034 MPa, 331 HBW min, stress-rupture test |
| AMS 5664 | High-solution-temperature variant | Better transverse ductility and impact in heavy sections; preferred for creep-limited parts |
| API 6A718 / API 6ACRA | Nickel base Alloy 718 for oil and gas drilling and production equipment | Restricted chemistry, yield 827–1000 MPa, 40 HRC max, Charpy at −60 °C, microstructure acceptance |
| NACE MR0175 / ISO 15156 | Materials for H2S-containing service | Qualifies the API-aged condition for sour service |
| EN 10302 · EN 10269 · DIN 17752 | Creep-resisting alloys, fastener stock, nickel alloy rod and bar | European delivery conditions and property tables |
| EN 10204 | Inspection documents for metallic products | 3.1 works certificate or 3.2 with third-party witness |
Ordering tip. Always state the standard and the condition, for example “ASTM B637 UNS N07718, solution treated and aged per AMS 5663” or “API 6A718, 120 ksi minimum yield”. The same forging can legitimately be produced to either, and the mechanical results differ by more than 200 MPa in yield.
Metallurgy
How the alloy is strengthened
Most nickel superalloys are hardened by γ′, Ni3(Al,Ti). Alloy 718 works differently. About 5 % niobium precipitates the body-centred-tetragonal γ″ phase, Ni3Nb, which strengthens more per unit of volume fraction and forms slowly. The slow response allows the alloy to be welded and post-weld heat treated without the strain-age cracking that affects faster-hardening grades, and it is the main reason 718 is used more widely than other superalloys.
The same chemistry sets the temperature ceiling. Above roughly 650 °C, γ″ coarsens and transforms into the stable orthorhombic δ phase, also Ni3Nb, and strength falls away. Controlled δ at the grain boundaries is useful during forging because it pins grain growth; a continuous δ film is a defect, and API 6A718 rejects it outright because it degrades toughness and sulfide stress-cracking resistance.
Forms the strengthening phase
Forms γ″ Ni3Nb on ageing. Also forms δ phase above about 1010 °C, which controls grain size during forging.
Builds the passive film
Builds the chromium oxide layer that resists oxidation to about 980 °C and gives good behaviour in CO2 and H2S environments.
Supports the matrix
Solid-solution strengthening plus resistance to pitting and crevice attack in chloride-bearing brines.
Controls the cost
A deliberate iron content lowers cost against fully nickel-based grades while keeping the austenitic matrix stable.
Adds secondary hardening
Precipitates a small fraction of γ′, adding strength and stabilising properties after long exposure.
Controls grain boundaries
Carbides pin boundaries during hot work; trace boron improves stress-rupture life and hot ductility.
Chemical composition
Chemical composition of NiCr19Fe19Nb5Mo3
| Element | Min | Max | Role in the alloy |
|---|---|---|---|
| Nickel (Ni) | 50.00 | 55.00 | Austenitic matrix, includes cobalt in some specifications |
| Chromium (Cr) | 17.00 | 21.00 | Oxidation and corrosion resistance |
| Iron (Fe) | Balance (approx. 17–20) | Matrix, cost control | |
| Niobium + tantalum (Nb+Ta) | 4.75 | 5.50 | Primary strengthener, forms γ″ |
| Molybdenum (Mo) | 2.80 | 3.30 | Solid-solution strength, pitting resistance |
| Titanium (Ti) | 0.65 | 1.15 | Forms γ′ |
| Aluminium (Al) | 0.20 | 0.80 | Forms γ′, deoxidiser |
| Cobalt (Co) | — | 1.00 | Residual |
| Carbon (C) | — | 0.08 | Carbides that pin grain boundaries |
| Manganese (Mn) | — | 0.35 | Residual, deoxidiser |
| Silicon (Si) | — | 0.35 | Residual, deoxidiser |
| Copper (Cu) | — | 0.30 | Residual |
| Tantalum (Ta) | — | 0.05 | Counted within Nb+Ta |
| Phosphorus (P) | — | 0.015 | Impurity |
| Sulfur (S) | — | 0.015 | Impurity, controlled for hot workability |
| Boron (B) | — | 0.006 | Grain-boundary strength, rupture life |
Restricted variants. Premium aerospace and oilfield material further limits lead, bismuth and selenium, and API 6A718 narrows carbon and niobium to control δ-phase formation. State the specification on the enquiry and the chemistry is bought to those narrower limits.
Mechanical properties
Mechanical properties by delivery condition
Delivery condition decides what the part can carry. Three conditions cover almost every enquiry we receive for this grade.
| Condition | Rm | Rp0.2 | A | Z | Hardness |
|---|---|---|---|---|---|
| Solution annealed AMS 5662 · ASTM B637 annealed |
825–1000 MPa typical | 585–760 MPa typical | 35–45 % typical | — | ≤ 30 HRC typical |
| Solution treated + double aged AMS 5663 · ASTM B637 heat treated |
≥ 1275 MPa (185 ksi) | ≥ 1034 MPa (150 ksi) | ≥ 12 % | ≥ 15 % | ≥ 331 HBW |
| Oilfield aged, 120K class API 6A718 · API 6ACRA |
≥ 1034 MPa (150 ksi) | 827–1000 MPa (120–145 ksi) | ≥ 20 % | ≥ 25–35 % | 32–40 HRC (approx. 298–363 HBW) |
Impact requirements for oilfield material. API 6A718 sets Charpy V-notch testing at −60 °C: for sections below 76.2 mm, 68 J average and 61 J single minimum; 76.2–254 mm, 47 J average and 41 J single; above 254 mm, 41 J average and 37 J single. Grain size and freedom from continuous grain-boundary δ phase are also acceptance criteria.
Strength at temperature
Typical values for solution treated and aged bar. Use them for screening; use certified test results for design.
| Temperature | Rm | Rp0.2 | Elongation |
|---|---|---|---|
| 20 °C | approx. 1400 MPa | approx. 1170 MPa | approx. 20 % |
| 540 °C | approx. 1275 MPa | approx. 1060 MPa | approx. 18 % |
| 650 °C | approx. 1150 MPa | approx. 1000 MPa | approx. 19 % |
| 760 °C | approx. 950 MPa | approx. 740 MPa | approx. 25 % |
Creep and rupture. AMS 5663 acceptance includes a stress-rupture test at 649 °C under 690 MPa with a minimum life of 23 hours and at least 4 % elongation. Published 100-hour rupture strength at 650 °C is around 690–725 MPa, falling to roughly 580 MPa at 1000 hours. That is why the alloy is rated to about 650 °C under sustained load.
Physical properties
Physical and thermal data
| Density | 8.19–8.22 g/cm3 (0.297 lb/in3) |
|---|---|
| Melting range | 1260–1336 °C |
| Modulus of elasticity (annealed) | 200 GPa (29.0 × 103 ksi) |
| Shear modulus | 77.2 GPa |
| Poisson's ratio | 0.29 |
| Thermal conductivity | 11.4 W/m·K |
| Specific heat | 435 J/kg·K |
| Mean thermal expansion, 20–100 °C | 13.0 µm/m·K |
| Electrical resistivity | approx. 1.25 µΩ·m |
| Magnetic permeability | approx. 1.001 (non-magnetic; Curie point below −112 °C) |
| PREN | approx. 22.5 |
Low thermal conductivity and high strength at temperature make this alloy difficult to machine: heat concentrates at the cutting edge. Plan for rigid setups, sharp carbide or ceramic tooling and generous through-tool coolant, and order forgings with realistic machining allowance rather than near-net where tolerances are tight.
Heat treatment
Heat-treatment routes
Four routes cover industrial practice for this grade. The choice sets strength, toughness and whether the part qualifies for sour service.
| Route | Solution treatment | Ageing | Result |
|---|---|---|---|
| Annealed supply AMS 5662 | 941–1010 °C, 1 h, air cool | none | Soft, formable and machinable; aged later by the buyer |
| Aerospace aged AMS 5663 | 941–1010 °C, 1 h, air cool | 718 °C / 8 h, furnace cool at 55 °C/h to 621 °C, hold to 18 h total, air cool | Highest room-temperature tensile, yield and fatigue strength |
| Heavy-section aged AMS 5664 | 1038–1066 °C, 1 h, air cool | 760 °C / 10 h, furnace cool to 650 °C, hold to 20 h total, air cool | Best transverse ductility, impact strength and rupture life in thick sections |
| Oilfield aged API 6A718 | 1021–1052 °C, 1 h | single step near 788 °C | Yield held to 827–1000 MPa and hardness below 40 HRC for sour service |
Manufacturing route
How we forge NiCr19Fe19Nb5Mo3
Alloy 718 is unforgiving in the press. Its hot-working window is narrow, it work-hardens quickly, and grain size is set by the last few percent of strain before the piece leaves the die. Our route is built around that.
- Certified melt stockEAF + VOD + ESR billet as standard, or double-melted VIM + VAR / VIM + ESR for aerospace and API-critical parts, traceable to the heat number.
- HeatingSoak at 1010–1120 °C. Overheating risks incipient melting near 1260 °C and irrecoverable grain-boundary damage.
- Open-die forging or ring rollingUpsetting and drawing on hydraulic presses, or radial-axial rolling for seamless rings. Reduction ratio typically 4:1 or better from the ingot.
- Finish below the δ solvusFinal passes below about 1010 °C with sufficient strain to recrystallise, giving fine, uniform grain, typically ASTM 5 or finer.
- Heat treatmentSolution and ageing to AMS 5662, 5663, 5664 or API 6A718 in furnaces with calibrated charts and recorded load maps.
- Machining and NDTRough or finish machining, then ultrasonic testing and liquid penetrant inspection before documentation and despatch.
Why finishing temperature matters more than tonnage. Finish too hot and the grains grow coarse, costing impact strength and failing API grain-size acceptance. Finish too cold and the piece cracks. Every job on this grade gets a written forging plan with the reheat schedule and the target finishing temperature before the first heat is drawn.
Product range
NiCr19Fe19Nb5Mo3 forgings we produce
| Form | Typical size range | Notes |
|---|---|---|
| Seamless rolled rings | OD 200–2500 mm · wall 30–400 mm · height 20–800 mm | Radial-axial rolled; also rectangular and contoured sections |
| Discs and blanks | Ø 100–1500 mm · thickness 20–500 mm | Upset forged, ultrasonically tested through thickness |
| Shafts and round bars | Ø 60–800 mm · length up to 6000 mm | Stepped shafts, spindles, eccentric shafts |
| Flanges and tube sheets | OD up to 2000 mm | Weld-neck, blind, orifice and custom drilled patterns |
| Sleeves, bushings, hollow forgings | OD up to 1200 mm · bore from 60 mm | Trepanned or mandrel forged for sound bore quality |
| Blocks and rectangles | up to 3000 × 800 × 400 mm | Valve blocks, bodies, manifold stock |
| Valve components | to drawing | Bodies, bonnets, stems, seat rings, gate and plug parts |
| Single-piece weight | approx. 5 kg – 5000 kg | Heavier pieces reviewed case by case |
Delivery conditions available: as-forged · rough machined with allowance · heat treated · proof machined for UT · finish machined to drawing. State which you need, because it changes both price and lead time.
Applications
Where NiCr19Fe19Nb5Mo3 forgings are used
Pressure-containing and pressure-controlling parts
- Wellhead and Christmas tree bodies, hangers and connectors
- Valve bodies, bonnets, stems, seat rings and gate components
- Packers, mandrels, landing nipples and downhole tool bodies
- Subsea and HPHT hardware aged to API 6A718 for sour service
Rotating and static hot-section hardware
- Turbine and compressor discs, spacers and seal rings
- Casing rings, diffusers and combustor hardware
- Gas compressor shafts, spindles and couplings
- High-strength bolting and fastener stock
Corrosion plus strength
- Pump shafts and plunger pump components
- Heat-exchanger tube sheets, forged nozzles and flanges
- Reactor internals, columns, towers and preheater parts
- Crystalliser and high-pressure vessel components
Extremes of temperature
- Nuclear and steam-plant fasteners, springs and pins
- Cryogenic hardware serviceable to about −253 °C
- Rolls, wheels, manifolds and heavy machinery components
- Gearbox and power-transmission parts requiring high fatigue strength
Not sure the grade is right? Send the service conditions (temperature, pressure, medium, H2S partial pressure and design code) and we will say whether 718 is the right answer or whether Alloy 625, 2.4816 or a stainless grade would serve better at lower cost.
Inspection and documentation
Testing and certification
Chemistry and structure
- Spectrographic analysis plus combustion analysis for C and S
- Grain size to ASTM E112, with duplex-structure screening
- Microstructure assessed against API 6A718 Annex A for δ-phase acceptance
- Positive material identification (PMI) on request
Proof of properties
- Tensile testing to ASTM E8 / ISO 6892, room and elevated temperature
- Charpy V-notch impact to ASTM E23 / A370, including −60 °C sets
- Hardness to ASTM E18 (HRC) or E10 (HBW)
- Stress-rupture testing where the specification calls for it
Soundness
- Ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388
- Liquid penetrant testing to ASTM E165, the correct surface method for a non-magnetic alloy
- API 6A PSL-level UT acceptance on oilfield parts
- Dimensional inspection reports with the shipment
What ships with the forging
- EN 10204 3.1 works certificate as standard
- EN 10204 3.2 with SGS, BV, TÜV or Lloyd's Register witness on request
- Heat-treatment charts and furnace records
- Heat number, grade and part number hard stamped with low-stress dies
The supplier
About Jiangyin Jiangnan Metal Co., Ltd.
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory at No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China. The works produces open-die forgings and seamless rolled rings in carbon steel, alloy steel, tool steel, stainless steel and nickel alloys, including NiCr19Fe19Nb5Mo3 (2.4668 / UNS N07718 / Alloy 718), Alloy 625, 2.4816 and the precipitation-hardening stainless grades 17-4PH, 15-5PH, 17-7PH and PH13-8Mo.
Parts are made to drawing or to standard, forged from certified melt stock, heat treated in-house and released against ASTM, ASME, AMS, EN, DIN and API specifications with EN 10204 3.1 or 3.2 documentation. Jiangyin sits in the Yangtze River Delta forging cluster, about 150 km from the port of Shanghai, so transit times to the port are short.
- Company
- Jiangyin Jiangnan Metal Co., Ltd.
- Works
- No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China
- Telephone
- +86 189 2135 9659
- Processes
- Open-die forging · radial-axial ring rolling · heat treatment · machining
- Markets
- Oil & gas, valves, power, chemical, marine, heavy machinery
Getting a price
How to quote a NiCr19Fe19Nb5Mo3 forging
Nickel superalloy forgings are quoted from the finished geometry backwards. Send these seven items and a firm price and lead time normally comes back within 24 to 48 hours.
RFQ checklist
- Drawing (PDF or STEP), or simply OD × ID × height, or length and diameter
- Grade and standard, for example ASTM B637 N07718 or API 6A718
- Delivery condition: annealed, aged, as-forged, rough or finish machined
- Quantity and whether this is a prototype or repeat production
- Required tests: tensile, impact temperature, hardness, UT class, PT
- Certificate type: EN 10204 3.1 or 3.2, and which inspection body
- Required delivery date and destination port
From enquiry to shipment
- Day 1–2: quotation with forging route, weight and lead time
- Week 1: drawing review, material plan and inspection & test plan approved
- Weeks 2–5: forging, heat treatment, machining and NDT
- Before despatch: documents issued, third-party witness if specified
- Typical total: 30–45 days for open-die forgings and rolled rings
Frequently asked
Common questions
What is NiCr19Fe19Nb5Mo3?
NiCr19Fe19Nb5Mo3 is the EN chemical designation of material number 2.4668, a precipitation-hardenable nickel–chromium–iron superalloy containing about 50–55 % nickel, 17–21 % chromium, 4.75–5.5 % niobium and 2.8–3.3 % molybdenum, with iron as the balance. It is the European name for the alloy known internationally as UNS N07718 or Alloy 718. Strengthening comes mainly from the γ″ phase Ni3Nb, which gives high strength, fatigue resistance and creep resistance up to about 700 °C.
Is NiCr19Fe19Nb5Mo3 the same as Inconel 718?
Yes. NiCr19Fe19Nb5Mo3, W.-Nr. 2.4668, UNS N07718, ISO NiCr19Nb5Mo3, AFNOR NC19FeNb, BS NA 51, Chinese GH4169 and the trade names Inconel® 718, Nicrofer 5219 Nb and Alloy 718 all describe the same alloy. Inconel is a registered trademark of Special Metals Corporation, so material is normally ordered and certified as Alloy 718, 2.4668 or UNS N07718 rather than by the trademark.
What is the maximum service temperature?
About 700 °C for short-term exposure. For sustained loading the practical limit is roughly 650 °C, because the strengthening γ″ phase coarsens and transforms into the stable δ phase above that range. The alloy also stays tough at cryogenic temperatures down to about −253 °C, which is why it appears in liquid-hydrogen and liquid-oxygen hardware.
Should I order solution annealed or aged material?
Order solution annealed material to AMS 5662 or ASTM B637 annealed when the part still needs heavy machining, forming or welding, then age it afterwards. Order solution treated and aged material to AMS 5663 when you need the full 1275 MPa tensile and 1034 MPa yield strength. Order to API 6A718 or API 6ACRA when the part goes into oilfield service, where yield is deliberately held to 827–1000 MPa and hardness to 40 HRC maximum so the material resists sulfide stress cracking.
Is Alloy 718 suitable for sour service with H2S?
Yes, when it is supplied in the API 6A718 or API 6ACRA condition. That specification restricts chemistry, requires a solution treatment near 1021–1052 °C followed by a single-step age near 788 °C, limits hardness to 40 HRC, sets Charpy V-notch requirements at −60 °C and forbids continuous grain-boundary δ phase. Material aged to aerospace strength under AMS 5663 is not qualified for sour service under NACE MR0175 / ISO 15156.
What is the difference between Alloy 718 and Alloy 625?
Alloy 718 (NiCr19Fe19Nb5Mo3, 2.4668) is precipitation hardenable and reaches roughly 1275 MPa tensile strength after ageing, but is limited to about 650–700 °C. Alloy 625 (NiCr22Mo9Nb, 2.4856) is solid-solution strengthened, reaching roughly 830 MPa, and offers better resistance to pitting, crevice corrosion and chloride stress-corrosion cracking. Choose 718 for strength-driven parts such as wellhead components, shafts and discs; choose 625 for corrosion-driven parts such as scrubbers, flare tips and process equipment.
Can NiCr19Fe19Nb5Mo3 be welded?
Yes, and this is one of its main advantages over faster-hardening superalloys. Because γ″ precipitates sluggishly, the alloy tolerates arc and resistance welding and post-weld heat treatment without strain-age cracking. Weld in the solution-annealed condition where possible, use AMS 5832 (ERNiFeCr-2) filler, and re-solution and age the assembly afterwards to restore full properties.
What size and weight can you forge?
Jiangyin Jiangnan Metal forges NiCr19Fe19Nb5Mo3 as seamless rolled rings up to about 2500 mm outside diameter, discs up to about 1500 mm diameter, shafts and bars from 60 to 800 mm diameter and up to about 6000 mm long, and single pieces from roughly 5 kg to 5000 kg. Larger or unusual geometries are quoted case by case against the drawing.
What certificates and tests are supplied?
Every order ships with an EN 10204 3.1 certificate, or a 3.2 certificate countersigned by a third party such as SGS, BV, TÜV or Lloyd's Register. Typical testing covers chemical analysis, tensile testing at room and elevated temperature, hardness, Charpy V-notch impact, ASTM E112 grain size, microstructure to API 6A718 Annex A, ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388, and liquid penetrant testing to ASTM E165. Magnetic particle testing does not apply, because the alloy is non-magnetic.
Who supplies NiCr19Fe19Nb5Mo3 forgings in China?
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory at No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China, manufacturing NiCr19Fe19Nb5Mo3 (2.4668 / Alloy 718) rings, discs, shafts, flanges and sleeves to ASTM, AMS, EN and API specifications for customers worldwide. Enquiries go to sales@steelforgepieces.com or +86 189 2135 9659.
What is the lead time?
Quotations are normally returned within 24 to 48 hours. Production lead time is typically 30 to 45 days for open-die forgings and rolled rings once the material and inspection plan are approved, depending on piece weight, heat-treatment route and machining scope. Repeat parts and small pieces can be faster.
Why is NiCr19Fe19Nb5Mo3 expensive to machine?
Because it keeps its strength at the cutting edge and conducts heat poorly (11.4 W/m·K, roughly a fifth of carbon steel), so heat concentrates in the tool rather than escaping in the chip. Expect low surface speeds, rigid setups, sharp carbide or ceramic tooling and high-pressure coolant. Ordering forgings rough machined with a controlled allowance usually costs less overall than machining from oversized stock.
References
Standards referenced on this page
Figures on this page are compiled from the following published specifications and from mill data sheets for wrought Alloy 718. Where a specification value and a typical value differ, the specification governs.
- ASTM B637 / ASME SB-637: precipitation-hardening nickel alloy bars, forgings and forging stock (ASTM International)
- SAE AMS 5662, AMS 5663, AMS 5664, AMS 5596, AMS 5832 (SAE International)
- API 6A718 and API 6ACRA: nickel base Alloy 718 for oil and gas drilling and production equipment (American Petroleum Institute)
- NACE MR0175 / ISO 15156: materials for use in H2S-containing environments
- EN 10302, EN 10269, DIN 17744, DIN 17750, DIN 17752: European delivery conditions
- EN 10204 (inspection documents), EN 10228-3, SEP 1921, ASTM A388 (ultrasonic testing), ASTM E8, E18, E23, E112, E165
Cite this datasheet
Jiangyin Jiangnan Metal Co., Ltd. (2026). NiCr19Fe19Nb5Mo3 (2.4668 / Alloy 718) forgings: technical datasheet. https://www.steelforgepieces.com/Nickel-Alloy/NiCr19Fe19Nb5Mo3.html (updated 23 August 2026).
Publisher: Jiangyin Jiangnan Metal Co., Ltd., No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China · sales@steelforgepieces.com · +86 189 2135 9659