UNS R30031 (Stellite 31)

Introduction:

Stellite 31 Material grades and equivalents: Stellite 31/ UNS R30031

Category:

Description

UNS R30031 (Stellite 31)

Stellite 31 Material grades and equivalents: Stellite 31/ UNS R30031

Chemical composition:

Co

Cr

W

C

Ni

Mo

Fe

Si

Other

Bal.

26

7.5

0.5

10

-

<2.0

<1.0

<0.5

Mechanical properties:

ASME/AWS

Hardness(HRC)

-

20-35

Characteristic as below:

Stellite31  is a cobalt-base, high-temperature super alloy having high tensile and creep properties in pre-cision casting. It is superior in stress-rupture properties to most alloys commercially available, especially at 1700 and 1800°F.

Processing conditions and application:

Stellite31 is mainly used in gas turbine engines in areas subject to hot gas erosion.