Inconel 625

Inconel 625 (UNS N06625)

Inconel 625, also known as Alloy 625, is a nickel alloy that is known for its impeccable strength and resistance against aqueous corrosion. Alloy 625 is a nonmagnetic corrosion and oxidation resistant alloy that is used both for its high strength and outstanding aqueous corrosion resistance. Its outstanding strength and toughness in the temperature range cryogenic to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. The weldability found in this nickel alloy is also outstanding, it can be welded by both manual and automatic welding methods and it is used to weld AL-6XN. This alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Some typical applications Inconel 625 is used in are chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors heat shields, furnace hardware, gas turbine engine ducting, combustion liners and spray bars, chemical plant hardware, and special seawater applications. Inconel 625 is approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel. Nano-Mag Technologies offer various products made from Inconel 625 material including Autoclave, Reactor, Hydrogenator, Magnetic Drives, Catalyst Filters etc. as per the requirement.
Request For Proposal

Exotic Metals

Characteristics of Inconel 625

  • High creep-rupture strength
  • Outstanding oxidation resistance up to 1800° F
  • Oxidation resistant to 1800° F
  • Resistant to seawater pitting and crevice corrosion
  • Immune to chloride ion stress corrosion cracking
  • Non-magnetic
  • Super creep-rupture strength

Chemical Composition:

Element %
Nickel: 58 min.
Columbium + Tantalum: 3.15 – 4.15
Molybdenum: 8 - 10
Iron: 5 max.
Sulfur: 0.015 max.
Manganese: 0.5 max.
Phosporous: 0.015 max.
Silicon: 0.5 max.
Carbon: 0.1 max.
Copper: 0.5 max.
Aluminium 0.4 max.
Titanium 0.4 max.

Indicative Corrosion Data

Chemical Corrosion Resistance
Alkaline & Salts Good
Hydrochloric Acid Good
Hydrofluric Acid Good
Nitric Acid Good
Organic Acid Good
Phosphoric Acid Good
Seawater Good
Sulfuric Acid Good

Corrosion rates may vary at different concentrations and temperatures . Each user is advised to carry out their own corrosion test with sample coupon

Material Specification

Alloy/Form ASME ASTM DIN
Plate, Sheet & Strip SB-443 B-443 17750
Rod & Bar SB-446 B-446 17752
Forgings SB-564 B-564 17754
Seamless Pipe & Tube SB-444 B-444 17551
Welded Pipe SB-705 B-705 -
Fittings SB-366 B-366 17744
Request For Proposal
Equipment Specification/Rating
Inconel 625 High Pressure Autoclave 50 ml-100 litres, Upto 350 bar, 500°C
Inconel 625 High Pressure Reactors Inconel 625 Hydrogenators 50 ml -50000 litres, Upto 150 bar, 500°C
Inconel 625 Continuous Stirred Tank Reactor 50 ml-100 litres, Upto 350 bar, 500°C
Inconel 625 Non-Stirred Pressure Vessels 50 ml-100 litres, Upto 350 bar, 500°C
Inconel 625 Catalyst Filters for Precious Metals As per requirement
Inconel 625 Magnetic Drive As per requirement
Inconel 625 Mini Magnetic Coupling Nano-20, Nano-40, Nano-80

All Products, Product Specifications and Data are subject to change.

  • Equipment for the production of super phosphoric acid
  • Plants for the treatment of radioactive waste
  • Production pipe systems and linings of risers in oil production
  • Offshore industry and seawater exposed equipment
  • Sea water piping in shipbuilding
  • Stress corrosion cracking resistant compensators
  • Furnace linings
  • Chemical Processing
  • Aerospace and Marine Engineering
  • Pollution-control equipment
  • Nuclear Reactors
  • Aircraft ducting systems
  • Aerospace
  • Jet engine exhaust systems
  • Engine thrust-reverser systems
  • Specialized seawater equipment
  • Chemical process equipment