High Nickel Alloys

High Nickel Alloys (64–70% nickel with chromium, molybdenum, iron, and copper) are engineered for superior strength, corrosion resistance, and thermal stability. Used in high-temperature, corrosive environments, alloys like Inconel, Hastelloy, and Monel retain strength up to 980°C and resist oxidation and pitting. They require solution annealing (1038–1175°C) with rapid cooling to preserve performance.

Factory Generated Scrap

Sheet & plate factory rejections, prime offcuts ,Pre-cut sheets, standard half-size lots, Cuttings, punchings, small pieces.

Turnings/Borings

Machining byproducts (e.g., from turning, milling, drilling) in forms like loose, bundled, or crushed chips, generated during production

Monel 400

Features:

Maintains strength and ductility from subzero to high temperatures
High toughness and good weldability
Non-sparking and resistant to chloride-induced stress corrosion

Applications:
Marine equipment, chemical plant parts, oil and gas pumps, heat exchangers

Heat Treatment:
Annealing (760–980°C with water quench), Stress Relief (550°C; not hardenable by heat—mechanical properties achieved mainly by cold working).

Monel 400 (UNS N04400) is a nickel-copper alloy with 63–70% Ni and 28–34% Cu, plus small amounts of Fe, Mn, C, and Si. Known for excellent corrosion resistance and strength, it remains reliable from subzero to high temperatures. The alloy is single-phase, cannot be hardened by heat treatment, and is strengthened only through cold working.

Nickel (Ni) 63.0 min

Copper (Cu) 28.0 – 34.0

Iron (Fe) ≤ 2.50

Manganese (Mn) ≤ 2.00

Silicon (Si) ≤ 0.50

Carbon (C) ≤ 0.30

Sulfur (S) ≤ 0.024

Marine: Propeller shafts, pump shafts, impellers, fasteners

Chemical/Processing: Tanks, vessels, pipes, heat exchangers

Aerospace/Defense: High-stress, non-magnetic parts

Power Generation: Steam tubes, brine heaters, nuclear equipment

Oil & Gas: Piping, pump parts, sour-service valves

Electronics: Battery terminals, connectors, switchgear

Monel 500

Features:

3× strength of Monel 400
Excellent corrosion resistance in marine, chemical, and sour-gas environments
Maintains properties from subzero up to 480°C
Good weldability with annealing and stress relief

Applications:
Marine propeller, pump shafts, oil & gas drill collars, chemical processing pumps, paper production scrapers, aerospace/defense non-magnetic housings, and electronic sensors.

Heat Treatment:
Solution anneal at 927–1038°C (rapid cool), age harden at 480–610°C for 6–16 hours (slow cool), stress relief at 550°C if needed.

Monel K-500 (UNS N05500) is an advanced nickel-copper alloy known for combining the excellent corrosion resistance of Monel 400 with superior strength and hardness. Precipitation hardening—via additions of aluminum and titanium—distinguishes K-500 from Monel 400, delivering improved mechanical properties for demanding applications.

Nickel (Ni) 63.0 min

Copper (Cu) 28.0 – 34.0

Sulfur (S) ≤ 0.024

Manganese (Mn ) ≤ 2.00

Aluminum: 2.30–3.15%

Iron: ≤2.0%

Titanium: 0.35–0.85%

Silicon (Si) ≤ 0.50

Carbon (C) ≤ 0.30

Marine: Propeller shafts, pump shafts, impellers, fasteners

Chemical/Processing: Pump, valve, and shaft parts.

Aerospace/Defense: High-stress, non-magnetic parts

Power Generation: Heat exchangers, tanks, tubes and fittings, pumps and valves, fasteners in nuclear plants

Oil & Gas: Drill collars, pump shafts, non-magnetic components

Electronics: Sensors, electrical components

Nichrome 80/20

Features:

High resistivity for efficient heating
Excellent oxidation resistance with protective chromium oxide layer
Stable at high temperatures with resistance to thermal cycling
Good corrosion resistance in water and air
Ductile and tough, easy to shape into wires or coils

Applications:
Heating elements, hot wire cutters, ignition wires, electrical resistors, mufflers, support wires, battery connectors, and magnetic shielding.

Heat Treatment:
Annealing at 1200°C (2192°F) to relieve stresses and improve ductility, followed by controlled cooling, with optional stress relieving below 1000°F if needed.

Nichrome 80/20, also known as NiCr 80/20 (UNS N06003), is an austenitic nickel-chromium alloy consisting roughly of 80% nickel and 20% chromium. It is highly resistant to oxidation and thermal fatigue, making it ideal for high-temperature applications up to 1200°C (2192°F). Alloy 80/20 retains excellent electrical properties across a wide temperature range, which is why it’s commonly used in heating elements for industrial and domestic furnaces, cartridge heaters, soldering irons, and wire-wound resistors. Its durability under cycling and steady high temperatures, along with good formability and weldability, make it a reliable choice for corrosion and heat-resistant components in electrical and heating industries.

Nickel (Ni) 73-79%

Chromium(Cr) 20-23%

Iron (Fe) upto 0.1%

Manganese (Mn) upto 0.6%

Iron: ≤2.0%

Silicon (Si) 1-1.5%

Household: Heating elements (toasters, hair dryers, ovens, irons, water heaters)

Industrial: Furnaces, kilns, soldering irons, heat sealing equipment

Pyrotechnics: Ignition wires (fireworks, electric matches, model rockets)

Tools: Hot wire cutters for foam and plastic

Electronics: Resistors, battery connectors, magnetic shielding

Art and Craft: Support wires for ceramics and glass

Inconel 600

Features:

Resistant to a wide range of corrosive media
Excellent mechanical properties at cryogenic and elevated temperatures
Virtually immune to chloride-ion stress corrosion
Good weldability, strength, and workability

Applications:
Aerospace, marine, chemical, and power generation components demanding heat and corrosion resistance.

Heat Treatment:
Solution treatment: 1000–1150°C (improves grain structure and stability)

Inconel 600 is a high-performance nickel-chromium alloy renowned for its exceptional resistance to heat and corrosion. It maintains strength and stability in extreme environments, making it ideal for chemical processing, aerospace, nuclear, marine, and power generation applications. Inconel 600 delivers excellent mechanical properties and long-lasting durability even at elevated temperatures.

Nickel (Ni): min 72%

Chromium (Cr): 14–17%

Iron (Fe): 6–10%

Carbon (C): max 0.15%

Manganese (Mn): max 1%

Silicon (Si): max 0.50%

Copper (Cu): max 0.50%

Sulfur (S): max 0.015%

Aerospace: Turbine components, lockwire, exhaust liners

Marine & Offshore: Boat axles, submerged structures, offshore platforms

Chemical & Petrochemical: Process equipment, furnace parts, heat exchanger tubes

Power Generation: Nuclear reactor vessels, heat treat furnace fixtures

Oil & Gas: Wells, Pipes, and extraction equipment

Wastewater Treatment: Plant components exposed to acids and seawater

Inconel 601

Features:

Superior corrosion resistance including resistance to chlorides and high-temperature oxidation
Maintains strength and stability with thermal cycling
High weldability and fabricability
Resistant to sulfidation, carburization, and scaling

Applications:
Aerospace turbine blades, combustion components, chemical and petrochemical furnaces, pollution control, power generation, and marine applications.

Heat Treatment:
Solution annealing between 1020-1175°C, enhances mechanical properties and corrosion resistance

Inconel 601 is a nickel-chromium-iron alloy known for its outstanding resistance to high-temperature oxidation and corrosion. It contains approximately 61% nickel, 22–25% chromium, and a small addition of aluminum which enhances its oxidation resistance by forming a stable, adherent oxide layer even under severe thermal cycling. Inconel 601 maintains high mechanical strength and structural stability at elevated temperatures up to about 1250°C (2282°F), making it ideal for applications in thermal processing, chemical processing, aerospace, and power generation industries

Nickel (Ni): ~61.5%

Chromium (Cr): ~22.5%

Iron (Fe): ~8.5–10%

Aluminium (Al): ~1.4%

Carbon (C): max 0.10%

Manganese (Mn): max 1%

Copper (Cu): max 0.50%

Silicon (Si): max 0.50%

Aerospace: Turbine blades, combustion liners, igniters, seals, diffuser assemblies

Chemical & Petrochemical: Heat treating furnaces, ammonium reformers, catalytic combustion equipment

Pollution control: Thermal reactors, exhaust systems for engines

Marine & Offshore: Seawater and brine exposure components, boiler tubes, evaporators

Power generation: Ash-handling systems, superheater tube supports, grid barriers

Automotive industry: High-temperature exhaust systems, turbochargers, and engine components requiring excellent oxidation and corrosion resistance.

Inconel 800

Features:

Outstanding resistance to oxidation, carburization, and stress corrosion cracking
Maintains strength and ductility over a wide temperature range
Good weldability and fabricability for complex industrial components

Applications:
Furnaces, petrochemical, power plants, aerospace, automotive, food processing equipment.

Heat Treatment:
Solution annealing at 1038-1150°C for 15-30 minutes improves strength and corrosion resistance

Inconel 800 is a high-strength nickel-iron-chromium alloy known for excellent resistance to oxidation, carburization, and sulfidation at elevated temperatures. It maintains mechanical stability under thermal cycling and is widely used in power generation, chemical processing, and aerospace industries. Inconel 800 resists corrosion in nitric and sulfuric acid environments, making it suitable for heat exchangers, reactors, furnace components, and turbochargers.

Nickel: 30-35%

Chromium: 19-23%

Iron: balance (~40-50%)

Carbon: max 0.10%

Carbon (C): max 0.10%

Manganese: max 0.50%

Silicon: max 0.50%

Titanium: 0.15-0.65%

Aluminum: 0.15-0.60%

Aerospace: Turbine components, exhaust systems, turbochargers

Chemical and Petrochemical: Reactors, heat exchangers, furnace parts

Power Generation: Superheaters, reheaters, nuclear reactor vessels

Marine and Offshore: Boiler tubes, seawater exposure, evaporators

Nuclear Industry: Fuel cladding, steam generators, reactor parts

Automotive: Exhaust components, turbocharger parts

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