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High Nickel Alloys

high nickel alloys steel products
High nickel alloys are specialized materials known for their exceptional corrosion resistance, high-temperature strength, and superior mechanical properties. These alloys contain a high percentage of nickel along with elements like chromium, molybdenum, and iron, enhancing their resistance to oxidation, pitting, and stress corrosion cracking. Their excellent thermal and electrical conductivity makes them ideal for extreme environments. High nickel alloys are widely used in oil & gas, petrochemical, aerospace, marine, power generation, chemical processing, and medical industries due to their ability to withstand harsh conditions, including high temperatures, aggressive chemicals, and saltwater exposure.
ASTM/ASME

High Nickel Alloys Specifications

Standard

ASTM, ASME, API, DIN, EN, JIS, ISO

Grades

Inconel (600, 601, 625, 718, X-750), Monel (400, K500), Hastelloy (C22, C276, B2, X), Nickel (200, 201), Incoloy (800, 825)

Applications

Oil & Gas, Petrochemical, Aerospace, Power Generation, Marine, Chemical Processing, Heat Exchangers, Nuclear Reactors, Medical Equipment

ASTM/ASME

B366, B564, B474, B161, B163, B167, B168, B443, B622, B626

Forms and Products

Pipes and Tubes, Buttweld Fittings, Flanges, Forged Fittings, Sheets, Plates, and Coils, Bars and Rods, Fasteners, Filler Wire, Outlet

Types

Corrosion-Resistant Alloys, Heat-Resistant Alloys, High-Performance Nickel Alloys, Superalloys
Available in all grades

High Nickel Alloys Products

flanges suppliers
Flanges
ASME B16.5, B16.47, MSS-SP-44
buttweld suppliers
Buttweld Fittings
ASME B16.9, B16.28, MSS-SP-43
forged suppliers
Forged Fittings
ASME B16.11, MSS-SP-79, 83, 97
fasteners suppliers
Fasteners
ASME B18.2.1, B18.2.2
pipes tubes suppliers
Pipes Tubes
ASME B36.10, EN 10217 / EN 10216
outlets suppliers
Outlets
MSS-SP-97, ASME B16.11
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ASTM / ASME

Equivalent Grades

Alloy Type Common Grades Equivalent Grades
Inconel Inconel 600 UNS N06600, W.Nr. 2.4816
Inconel 625 UNS N06625, W.Nr. 2.4856
Inconel 718 UNS N07718, W.Nr. 2.4668
Hastelloy Hastelloy C-276 UNS N10276, W.Nr. 2.4819
Hastelloy C-22 UNS N06022, W.Nr. 2.4602
Monel Monel 400 UNS N04400, W.Nr. 2.4360
Monel K500 UNS N05500, W.Nr. 2.4375
Nickel Alloys Nickel 200 UNS N02200, W.Nr. 2.4060
Nickel 201 UNS N02201, W.Nr. 2.4061
Incoloy Alloy 825 UNS N08825, W.Nr. 2.4858
Incoloy Alloy 925 UNS N09925, W.Nr. 2.4859
ASME / ASTM

Chemical Composition

Alloy Type Grade Nickel (Ni) Copper (Cu) Chromium (Cr) Molybdenum (Mo) Iron (Fe) Others
Inconel Inconel 600 58.0-63.0% 0.0-1.0% 14.0-17.0% 8.0-10.0% Bal. Ti, Al, C (max 0.1%)
Inconel 625 58.0-67.0% 0.0-0.5% 20.0-23.0% 8.0-10.0% Bal. Mo, Nb, Ti, C (max 0.1%)
Inconel 718 50.0-55.0% 0.0-1.0% 17.0-21.0% 2.8-3.3% Bal. Nb, Ti, C (max 0.08%)
Hastelloy Hastelloy C-276 57.0-63.0% 4.5-7.5% 14.5-16.5% 15.0-17.0% Bal. Mo, W, C (max 0.01%)
Hastelloy C-22 56.0-65.0% 0.0-2.5% 19.0-21.0% 6.0-15.0% Bal. Mo, W, C (max 0.01%)
Monel Monel 400 63.0% min 28.0-34.0% 1.0% max 0.0% Bal. Fe, C (max 0.3%)
Monel K500 63.0% min 26.0-33.0% 1.0% max 2.0-3.0% Bal. Ti (0.3-0.7%), C (max 0.3%)
Nickel Alloys Nickel 200 99.0% min 0.0-0.4% 0.0% 0.0% Bal. C (max 0.15%)
Nickel 201 99.0% min 0.0-0.4% 0.0% 0.0% Bal. C (max 0.02%)
Incoloy Alloy 825 38.0-46.0% 1.5-3.0% 19.0-23.0% 2.5-3.5% Bal. Mo, C (max 0.05%)
Incoloy Alloy 925 39.0-46.0% 1.5-3.0% 19.0-22.0% 2.0-3.0% Bal. Mo, C (max 0.05%)
ASME / ASTM

Mechanical Properties

Alloy Type Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Hardness (HB) Modulus of Elasticity (GPa)
Inconel Inconel 600 241 483 30 130 207
Inconel 625 241 758 50 200 207
Inconel 718 827 1034 12 248 207
Hastelloy Hastelloy C-276 310 690 30 150 207
Hastelloy C-22 300 620 40 150 207
Monel Monel 400 241 450 40 150 207
Monel K500 310 620 30 200 207
Nickel Alloys Nickel 200 200 350 50 60 207
Nickel 201 220 380 50 60 207
Incoloy Alloy 825 310 620 30 150 207
Incoloy Alloy 925 390 700 30 200 207