Chromium 25

Chemical Composition

Element Symbol Average Preferred Range %
Carbon C 2.8-3.0
Chromium Cr 25-27
Silicon Si 0.6-0.8
Manganese Mn 0.6-0.8
Molybdenum Mo 0.4-0.6
Nickel Ni 0.8-1.0
Copper Cu 0.8-1.0
Sulphur S 0-0.06
Phosphorus P 0-0.10
Iron Fe Balance

Mechanical Properties

Property Metric Values Imperial Values
Compressive Strength Min 2960 MPa 429 ksi
Transverse Strength Min 938 MPa 136 ksi
Hardness (Brinell) 650HB 650HB

Comparative Specifications

ASTM: Grade III A 25% Cr

DIN: GX 260 Cr 27

EN (EU/US): GJH-X260Cr 27

BS (British Standard): Grade 3D

GB (Chinese Standard): BTMCr26

Applicable Casting Processes