55Si2MnA spring steel

Implementation of standards GB/T1222-1984

Grades 60Si2Mn;

Chemical composition (%):

C0.56 ~ 0.64,

Si1.50 ~ 2.00,

Mn1.00 ~ 1.30,

Cr less than or equal 0.35;

Quenching temperature: 870;

Coolant: Oil;

Tempering temperature: 480;

Yield point: MPA1175;

Tensile strength: 1275;

Elongation: 5;

Contraction on the rate of: 25.

Characteristics and uses (60Si2Mn, 60Si2MnA): the strength and elasticity of steel and 55SIMNB slightly higher than the 55SI2MN, a higher hardenability.