Cast Iron S-NiCr30-3

Designation

Name The value
Designation GOST Cyrillic S-NiCr30-3
Designation GOST Latin S-NiCr30-3
Transliteration S-NiCr30-3
By chemical elements S-NiCr30-3

Description

Cast iron S-NiCr30−3 is used: for the manufacture of castings, pumps, boilers, valves, parts of filtering devices, exhaust pipes, turbocharger housings.

Note

Nickel cast iron. It possesses properties similar to the properties of the brand L-NiCr30−3. Has a high creep resistance, adding 1% by weight of molybdenum.

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 ≤2.6 ≤0.08 0.5-1.5 2.5-3.5 1.5-3 28-32 Rest ≤0.5
Fe is the basis.
According to GOST 7769-82, a molybdenum content of 0.80-1.10% is allowed for a creep rate of less than 0.5 × 10 -4 % / h at 600 ° C and 40 MPa or 1.0 × 10 -4 % / h at 700 ° С and 30 MPa.

Mechanical properties

sT|s0,2, MPa σU, MPa d4 HB, MPa
Castings on OST 1 90077-72
210-260 370-470 7-18 140-200

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 92-105

A description of the physical symbols

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