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Alloy Portfolio

Nickel and Nickel Alloys

Corrosion Resistant Alloys

Designations Equivalent Specifications Major Elements Chemical Compositions(%) Properties Applications
ASTM JIS Ni Cr Mo Cu Fe Other Elements
N-201(Low-Carbon Nickel) B160
UNS N02201
NW2201 99.5 - - - - C 0.1 Commercially pure (99.6%) wrought nickel essentially the same as Nickel 200 but with a lower carbon content to prevent embrittlement by intergranular0 carbon at temperatures over 600°F (315°C). Lower carbon content also reduces hardness, making Nickel 201 particularly suitable for cold-formed items. Used in food, caustic soda, medicine, and synthetic fiber processing.
C-20Cb3(Carpenter Austenitic Stainless Steel) B462&473
UNS N08020
- 35.0 20.0 2.5 3.5 37.0 Nb+Ta 0.6 A nickel-iron-chromium, with additions of copper, molybdenum and niobium, having excellent resistance to pitting corrosion, crevice corrosion, and boundary corrosion in media including sulfuric acid or oxidized acid. Used for tanks, heat exchangers, valves, pumps, and piping in chemistry and petrochemistry equipment.
M-400(Monel) B164&564
UNS N04400
NW4400 66.5 - - 31.5 1.0 - A nickel-copper alloy with high strength and excellent corrosion resistance in a range of media including seawater, hydrofluoric acid, sulfuric acid, and alkalies. Used for marine engineering, chemical and hydrocarbon processing equipment, valves, pumps, shafts, fittings, fasteners, and heat exchangers.
MK-500(Monel) B865
UNS N05500
NW5500 65.5 - - 29.5 1.0 Al 2.7
Ti 0.6
A precipitation-hardenable nickel-copper alloy that combines the corrosion resistance of MONEL alloy 400 with greater strength and hardness. It also has low permeability and is nonmagnetic to temperatures as low as -150°F(-101°C). Used for pump shafts, oil well tools and instruments, doctor blades and scrapers, springs, valve trim, fasteners, and marine propeller shafts.
I-600(Inconel) B166&564
UNS N06600
NCF600 76.0 15.5 - - 8.0 - A nickel-chromium alloy with good oxidation resistance at high temperatures and resistance to chloride-ion stress-corrosion cracking, corrosion by high-purity water, and caustic corrosion. Used for furnace components, in chemical and food processing, in nuclear engineering, and for sparking electrodes
I-625(Inconel) B446&564
UNS N06625
NCF625 61.0 21.5 9.0 - 2.5 Nb+Ta 3.7 A nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy’s matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
I-690(Inconel) B166&564
UNS N06690
NCF690 61.5 29.0 - - 9.0 - INCONEL alloy 690 is a high-chromium nickel alloy having excellent resistance to many corrosive aqueous media and high-temperature atmospheres. The alloy's high chromium content gives it excellent resistance to aqueous corrosion by oxidizing acids (especially nitric acid) and salts, and to sulfidation at high-temperatures. In addition to its corrosion resistance, alloy 690 has high strength, good metallurgical stability, and favorable fabrication characteristics. Used in coal gasification, nuclear fuel reprocessing, nuclear reactors, and for tanks and heating coils in pickling processing.
I-825(Incoloy) B425&564
UNS N08825
NCF825 42.0 21.5 3.0 2.2 30 Ti 0.9 A nickel-iron-chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. The alloy is especially resistant to sulfuric and phosphoric acids. Used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.
H-C276
H-MA276
(Hastelloy)
B574&564
UNS N10276
NW0276 57.0 15.5 16.0 - 6.0 W 4.0 Versatile, corrosion resistant alloy. Very good resistance to reducing, and mildly oxidizing corrosives. Excellent stress corrosion cracking resistance with very good resistance to localized attack. Used for reaction chemical reactors and vessels, in flue gas desulfurization or denitration process, and for heat exchangers
I-C22
H-MA22
(Hastelloy)
B574&564
UNS N06022
NW6022 57.0 22.0 13.0 - 4.0 W 3.0 Better overall corrosion resistance in oxidizing corrosives than C-4, C-276 and 625 alloys. Outstanding resistance to localized corrosion and excellent resistance to stress corrosion cracking.. Used for chemical processing, flue gas desulfurization, paper bleaching, and toxic waste incineration equipment
H-MA-B2
(Hastelloy)
B335&564
UNS N10665
NW0665 70.0 - 28.0 - ≦2 - Excellent resistance to hydrochloric acid and other strongly reducing chemicals. Used for fluoroplastics molding cylinder screws, reaction chemical reactors and vessels, heat exchangers and piping in petrochemistry processing.

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Heat Resistant Alloys

Designations Equivalent Specifications Major Elements Chemical Compositions(%) Properties Applications
ASTM JIS Ni Cr Mo Cu Fe Other Elements
I-600(Inconel) B166&564
UNS N06600
NCF600 76.0 15.5 - - 8.0 - A nickel-chromium alloy with good oxidation resistance at high temperatures and resistance to chloride-ion stress-corrosion cracking, corrosion by high-purity water, and caustic corrosion. Used for furnace components, in chemical and food processing, in nuclear engineering, and for sparking electrodes
I-601(Inconel) B166
UNS N06601
NCF601 60.5 23.0 - - 14.4 Al 1.4 A nickel-chromium alloy with an addition of aluminum for outstanding resistance to oxidation and other forms of high-temperature corrosion. It also has high mechanical properties at elevated temperatures. Used for industrial furnaces; heat-treating equipment such as baskets, muffles, and retorts; petrochemical and other process equipment; and gas-turbine
I-625(Inconel) B446&564
UNS N06625
NCF625 61.0 21.5 9.0 - 2.5 Nb+Ta 3.7 A nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy’s matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
I-718(Inconel) B637
UNS N07718
NCF718 54.0 19.0 3.0 - 18.5 Nb+Ta 5.1
Ti 0.9
Al 0.5
A precipitation-hardenable nickel-chromium alloy also containing significant amounts of iron, niobium, and molybdenum along with lesser amounts of aluminum and titanium. It combines corrosion resistance and high strength with outstanding weldability including resistance to post-weld cracking. The alloy has excellent creep-rupture strength at temperatures to 1300°F (700°C). Used in gas turbines, rocket motors, spacecraft, nuclear reactors, pumps, and tooling.
IX-750(Inconel) B637
UNS N07750
NCF750 73.0 15.5 - - 7.0 Nb+Ta 1.0
Ti 2.5
Al 0.9
A nickel-chromium alloy similar to INCONEL alloy 600 but made precipitation hardenable by additions of aluminum and titanium. It has good resistance to corrosion and oxidation along with high tensile, creep-rupture properties at temperatures to 1300°F (700°C). . Used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling, and aircraft structures. It is used for high-temperature springs and bolts with excellent relaxation resistance.
I-800H
I-800HT(Incoloy)
B408&564
UNS N08811
NCF800H 32.5 21.0 - - 46.0 C 0.08
Al+Ti 1.0
Nickel-iron-chromium alloys having the same basic composition as INCOLOY alloy 800 but with significantly higher creep-rupture strength. The higher strength results from close control of the carbon, aluminum, and titanium contents in conjunction with a high-temperature anneal. Used in chemical and petrochemical processing, for super-heater and re-heater tubing in power plants, in industrial furnaces, and for heat-treating equipment.
N-80A(Nimonic) B637
UNS N07080
NCF80A 76.0 19.5 - - 2.0 Ti 2.4
Al 1.4
A nickel-chromium alloy similar to NIMONIC alloy 75 but made precipitation hardenable by additions of aluminum and titanium. The alloy has good corrosion and oxidation resistance and high tensile and creep-rupture properties at temperatures to 1500°F (815°C). Used for gas-turbine components (blades, rings, and discs), bolts and tube supports in nuclear steam generators, die-casting inserts and cores, and exhaust valves in internal-combustion engines.

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Low-Expansion Alloys

Designations Equivalent Specifications Major Elements Chemical Compositions(%) Properties Applications
ASTM JIS

Ni

Cr Mo Cu Fe Other Elements
36Ni-Fe(Invar) - - 36.0 - - - bal - A nickel-iron low-expansion alloy containing 36% nickel. It maintains nearly constant dimensions over the range of normal atmospheric temperatures, and has a low coefficient of expansion from cryogenic temperatures to about 500°F (260°C). The alloy also retains good strength and toughness at cryogenic temperatures. Used for standards of length, measuring devices, laser components, bi-metal thermostat strips, thermostat rods, and tanks and piping for storing and transporting liquefied gases.
42Ni-Fe(Glass Sealing Alloy) - - 42.0 - - - bal - A nickel-iron controlled-expansion alloy containing 42% nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 570°F (300°C). envelopes of electric bulbs, radio valves, television tubes, and fluorescent lights. Used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as thecore of copper-clad wire for sealing into glass
KOVAR(Glass Sealing Alloy) - - 29.0 - - - 53.0 Co 17.0 A nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. lead frames, and photography flash bulbs. Used for high-power transmitting valves, transistor leads and headers, and integrated circuit

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Shape Memory Alloy

Designations Ni Ti Properties Applications
Nickel Titanium 50.0 50.0 An alloy provided with shape-memory by processes of plastic forming and heat-treatment. Even if deformed by external stress, it returns to the pre-deformed shape by heating higher than transformation temperatures. Used for brassieres, cellular phone antennas, glasses frames, catheter wires and orthodontics wires.

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