Inconel 625* W.NR: 2.4856
, UNS: N06625 , *Trade name of Special Metals Group of Companies
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. Applications
include the marine and aerospace industries, chemical processing,
nuclear reactors and pollution control equipment.
Approx
Chemical Composition (%)
Ni
Cr
Mo
Nb
Fe
>58
20-23
8-10
3.15-4.15
5
Density
(g/cm3)
8.44
Melting
Point (°C)
1350
Coefficient
of Expansion
12.8 µ m/m °C At
21 - 93°C
Standards
BS 3076 NA21
Heat Treatments
Spring Temper
Stress relieve at 260 - 370
°C - 30-60 mins
Approx. Tensile
Annealed
800 - 1000 N/mm2
Spring Temper
1300 - 1600 N/mm2
Rigidity
Modulus
79.0 kN/mm2
Youngs Modulus
205.8 kN/mm2
Approx.
Service Temperatures
-200 to +340 °C
Spring Temper + stress relieved,
springs can operate up to 200 °C
