Alloy Wire International: Inconel Alloy 625

Alloy 20 CB 3 W.NR: 2.4660 , UNS: N08020 AWS: 130

Alloy 20 CB 3 is an austenitic stainless steel with excellent resistance to hot sulphuric acid and many other aggressive environments that would readily attack stainless steel 316. This alloy exhibits superior resistance to stress-corrosion cracking in boiling 20 to 40% sulphuric acid.

Applications include chemical and allied industries, and in the processing of synthetic rubber, high octane gasoline, solvents, pharmaceuticals and agrichemicals.

Approx Chemical Composition (%)

Ni
Cr
Cu
Mo
Fe
C

32-38
19-21
3-4%
2-3
BAL
0.07 max

Density
(g/cm³)

8.08

Melting
Point (°C)

1425

Coefficient of Expansion

14.69 µ m/m °C at 20 - 100°C

Heat Treatment
(after forming)

Stress relieve at 250 - 530 °C for 1 hour and air cool

Approx. Tensile Strength

Annealed

600 - 900 N/mm²

Spring Temper

1200 - 1800 N/mm²

Modulus of Rigidity

73.6 kN/mm²

Modulus of Elasticity

193 kN/mm²

Approx.
Service Temperatures

-200 to +300 °C

Click here for standard available sizes and forms...

If any of the specifications do not fall within your requirements please enquire:
Tel: +44 (0)1384 566775 or e-mail us at:



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