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Material 1

Nickel AlloysUNS N07718View material details

Material 2

Nickel AlloysUNS N06625View material details

Material 3

Nickel AlloysUNS N10276View material details

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Compare Materials: Alloy 718, Alloy 625, Alloy C-276
Material	Alloy 718N07718	Alloy 625N06625	Alloy C-276N10276
Summary
Material family	Nickel Alloys	Nickel Alloys	Nickel Alloys
Grade / UNS	N07718	N06625	N10276
Summary	An age-hardenable nickel alloy for fasteners and components requiring strength and corrosion resistance.	A solid-solution-strengthened nickel alloy used in marine and chemical-processing equipment.	A nickel-chromium-molybdenum alloy used in corrosive chemical environments.
Performance overview
Material focus	Strength developed through aging	Strength without an aging treatment	Resistance in aggressive chemical media
Physical reference	Density 8.19 g/cm³ Melting range 1260–1336 °C Supplied technical reference · Scanned PDF page 12 · printed page 24	Density 8.44 g/cm³ Melting range 1290–1350 °C Supplied technical reference · Scanned PDF page 12 · printed page 24	Density 8.89 g/cm³ Melting range 1325–1370 °C Supplied technical reference · Scanned PDF page 11 · printed page 23
Chemical composition	Chemical composition Composition limits · wt.% Ni 50–55 Cr 17–21 Nb + Ta 4.75–5.50 Mo 2.80–3.30 Ti 0.65–1.15 Al 0.20–0.80 Fe Balance C ≤0.08 Mn ≤0.35 Si ≤0.35 P ≤0.015 S ≤0.015 B ≤0.006 Cu ≤0.30 Co ≤1.0 Supplied technical reference · Scanned PDF page 4 · printed page 16	Chemical composition Composition limits · wt.% Ni ≥58 Cr 20–23 Mo 8–10 Nb + Ta 3.15–4.15 Fe ≤5 C ≤0.10 Mn ≤0.50 Si ≤0.50 P ≤0.015 S ≤0.015 Al ≤0.40 Ti ≤0.40 Co (if determined) ≤1.0 Special Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗	Chemical composition Composition limits · wt.% Ni Balance Cr 14.5–16.5 Mo 15–17 Fe 4–7 W 3–4.5 Co ≤2.5 C ≤0.01 Mn ≤1.0 P ≤0.04 S ≤0.03 Si ≤0.08 V ≤0.35 Supplied technical reference · Scanned PDF page 6 · printed page 18
Mechanical properties Reference conditions vary or are incomplete. Read the basis, condition and source for each column; these values do not establish a performance ranking or finished-fastener acceptance values.
Tensile strength	1389 MPa Typical reference sample Annealed + aged Room temperature Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗	724–896 MPa Nominal reference range Solution treated Room temperature Special Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗	792 MPa Published reference sample Mill annealed Room temperature Haynes · C-276 · Nominal Composition; Tensile Strength and Elongation; Resistance to Pitting and Crevice Corrosion ↗
0.2% yield strength	1207 MPa Typical reference sample Annealed + aged Room temperature Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗	290–414 MPa Nominal reference range Solution treated Room temperature Special Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗	356 MPa Published reference sample Mill annealed Room temperature Haynes · C-276 · Nominal Composition; Tensile Strength and Elongation; Resistance to Pitting and Crevice Corrosion ↗
Elongation	20 % Typical reference sample Annealed + aged Room temperature Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗	40–65 % Nominal reference range Solution treated Room temperature Special Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗	61 % Published reference sample Mill annealed Room temperature Haynes · C-276 · Nominal Composition; Tensile Strength and Elongation; Resistance to Pitting and Crevice Corrosion ↗
Reference conditions	Data basis Typical reference sample Condition Annealed + aged Sample form Hot-rolled bar · Ø25.4 mm Sample size 1.0 in diameter (25.4 mm) Test temperature Room temperature Test method Not documented in this reference Test direction Longitudinal Elongation gauge length Not documented in this reference	Data basis Nominal reference range Condition Solution treated Sample form Rod, bar & plate Sample size Up to 101.6 mm Test temperature Room temperature Test method Not documented in this reference Test direction Not documented in this reference Elongation gauge length Not documented in this reference	Data basis Published reference sample Condition Mill annealed Sample form Sheet · 2 mm thickness Sample size 0.078 in (2 mm) sheet Test temperature Room temperature Test method Not documented in this reference Test direction Not documented in this reference Elongation gauge length Not documented in this reference
Temperature & corrosion Evaluate the medium, concentration, impurities, temperature and loading together. A melting point or oxidation reference is not a safe working-temperature limit.
Service conditions to review	Specify the heat treatment and strength requirement.	Match the annealed or solution-treated condition to the application.	Check the actual medium, concentration and temperature.
Temperature-dependent data	Strength and elongation vs temperaturePlate · mill annealed + aged View material details	Strength and elongation vs temperatureHot-rolled plate · mill annealed at 1052°C View material details	Strength and elongation vs temperatureAnnealed material · supplied reference View material details
Heat treatment Delivery condition and heat-treatment requirements are agreed for the requested product form and order.
Condition	Annealed + aged	Solution treated	Mill annealed
Reference treatment	1750°F / 1 h, then 1325°F / 8 h; furnace cool to 1150°F for 18 h total aging.Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗	Not documented in this reference	Mill-annealed wrought material context; no heat cycle is attached to this tensile row.Haynes · C-276 · Nominal Composition; Tensile Strength and Elongation; Resistance to Pitting and Crevice Corrosion ↗
Reference applications Application examples provide context for review; suitability depends on the actual service conditions.
Reference applications	Fasteners · turbine components	Marine · chemical processing	Chemical processing · heat exchangers
Standards & documentation Confirm the edition, product form and condition. Material specifications do not establish finished-fastener compliance.
Material specifications by form	ASTM B637 / ASME SB637 · AMS 5662 / 5663 / 5664Rod, bar & forgingsSpecial Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗ AMS 5832 / 5914 / 5962Wire & related wrought productsSpecial Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗ ASTM B670 / B906 · ASME SB670 / SB906 · AMS 5596 / 5597 / 5950Plate, sheet & stripSpecial Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗ AMS 5589 / 5590 · DIN 17751Pipe & tubeSpecial Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗	ASTM B446 / ASME SB446 · AMS 5666Rod & barSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B564 / ASME SB564 · AMS 5666Forgings & ringsSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ AMS 5837WireSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B443 / ASME SB443 · AMS 5599 / 5869 · MAM 5599Plate, sheet & stripSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B444 / B829 · ASME SB444 / SB829Seamless pipe & tubeSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B704 / B751 · ASME SB704 / SB751 · AMS 5581Welded tubeSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B705 / B775 · ASME SB705 / SB775Welded pipeSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ ASTM B366 / ASME SB366FittingsSpecial Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗	ASTM B574 / ASME SB574Rod, bar & wireSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B462 / B564 · ASME SB564Forgings & forging stockSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B575 / B906 · ASME SB575 / SB906Plate, sheet & stripSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B622 / B829 · ASME SB622 / SB829Seamless pipe & tubeSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B626 / B751 · ASME SB626 / SB751Welded tubeSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B619 / B775 · ASME SB619 / SB775Welded pipeSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗ ASTM B366 / ASME SB366FittingsSpecial Metals · C-276 · Technical bulletin · product forms and specifications ↗
Sources	Sources Special Metals · Alloy 718 · SMC-045, September 2007 · Tables 1 & 8 ↗ Supplied technical reference · Scanned PDF page 4 · printed page 16 Supplied technical reference · Scanned PDF page 12 · printed page 24 SAE · AMS 5662P · 2022 revision · public title and scope ↗ SAE · AMS 5663P · 2022 revision · public title and scope ↗ ASTM · B637 · B637-26 · public scope ↗ Haynes · 718 temperature data · Tensile Properties → Tensile Data, Plate ↗	Sources Special Metals · Alloy 625 · Tables 1, 2 & 5; Available Products and Specifications (page 17) ↗ Supplied technical reference · Scanned PDF page 12 · printed page 24 ASTM · B446 · B446-26 · public scope ↗ Supplied technical reference · Scanned PDF page 4 · printed page 16 Haynes · 625 plate tensile data · Tensile Properties → Hot-Rolled and 1925°F (1052°C) Mill-Annealed, Plate ↗	Sources Haynes · C-276 · Nominal Composition; Tensile Strength and Elongation; Resistance to Pitting and Crevice Corrosion ↗ Supplied technical reference · Scanned PDF page 6 · printed page 18 Supplied technical reference · Scanned PDF page 11 · printed page 23 ASTM · B574 · B574-23 · public scope ↗ Special Metals · C-276 · Technical bulletin · product forms and specifications ↗

Documents for your enquiry

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Summary

Performance overview

Mechanical properties

Temperature & corrosion

Heat treatment

Reference applications

Standards & documentation

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