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Inconel 625 - ASTM B446, AMS 5666

Inconel* 625

Available in any of the 'profile options'

A Nickel-Chromium-Molybdenum alloy with excellent corrosion resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. It is a favourable choice for sea water applications.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
C - 0.10
Mn - 0.50
Si - 0.50
P - 0.015
S - 0.015
Cr 20.00 23.00
Co - 1.00
Mo 8.00 10.00
Fe - 5.00
Al - 0.40
Ti - 0.40
Ni 58.00 -
Nb/Cb 3.15 4.15
Ta - 0.05
Cu - 0.5
AMS 5666
ASTM B446
BS 3076 NA 21
ISO 15156-3
(NACE MR 0175)
W.NR 2.4856
UNS N06625
AWS 012
Excellent corrosion resistance in a wide range of corrosive media
Especially resistant to pitting and crevice corrosion
Good for sea water applications
Marine Industries
Aerospace Industries
Chemical Processing
Nuclear Reactors
Pollution Control
Density 8.44g/cm³ 0.305 lb/in³
Melting Point 1350°C 2460°F
Coefficient of Expansion 12.8 μm/m °C (20 - 100°C) 7.1 x 10-6 in/in °F (70 - 212°F)
Modulus of Rigidity 79 kN/mm² 11458 ksi
Modulus of Elasticity 205.8 kN/mm² 29849 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 260 - 370 500 - 700 0.5 - 1 Air
Properties
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 800 - 1000 116 - 145 -200 to +340 -330 to +645
Spring Temper 1300 - 1600 189 - 232 up to +200 up to +395

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies

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