Cast Iron S-NiSiCr20-5-2

Designation

Name The value
Designation GOST Cyrillic S-NiSiCr20-5-2
Designation GOST Latin S-NiSiCr20-5-2
Transliteration S-NiSiCr20-5-2
By chemical elements S-NiSiCr20-5-2

Description

Cast iron S-NiSiCr20−5-2 is used: for the manufacture of casting parts of valves, pumps, castings used in industrial furnaces that are subject to high mechanical stress.

Note

Nickel cast iron. Has good corrosion resistance even in diluted sulphuric acid, good heat resistance.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 GOST 7769-82

Chemical composition

Standard C P Mn Cr Si Ni Fe Cu
GOST 7769-82 ≤3 ≤0.08 0.5-1.5 1-2.5 4.5-5.5 18-22 Rest ≤0.5
Fe is the basis.

Mechanical properties

sT|s0,2, MPa σU, MPa d4 HB, MPa
Castings on OST 1 90077-72
210-260 370-430 10-18 180-230

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d4 Elongation after rupture
HB Brinell hardness number

Physical characteristics

Temperature Е, HPa
20 112-133

A description of the physical symbols

Name Description
r Density
l Coefficient of thermal conductivity
a The coefficient of linear expansion