JIS G3311 SK65M Introduce

JIS G3311 SK65M is one of the most popular steels used in the machining industry due to its superior quality and machinability. It is very heat resistant, and is known for its hardness and tensile strength. It can be machined in a variety of ways, including lathe machining, grinding, cold forming, and EDM. It displays excellent wear resistance and weldability, making it ideal for applications where corrosion might occur. It is an important material for the manufacturing industry, and it is used for a wide range of products.

Smelting temperature:1138°C - 1857°C

Application:Cold rolled special steel plate

JIS G3311 SK65M Material Mechanical Properties

The mechanical properties of the JIS G3311 SK65M steel are as follows:

YieldRp0.2 ≤ 956 (MPa)
TeileRm≤ 653 (MPa)
ImpactKV/Ku21(J)
ElongationA11%
Reduction in cross section on fractureZ43%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)443

JIS G3311 SK65M Material Thermal Properties

The thermal performance parameters of the JIS G3311 SK65M steel are as follows:

Temperature (°C)44162187
Modulus of elasticity (GPa)-847-
Mean coefficient of thermal expaion ×10-6/(°C)--43
Thermal conductivity (W/m·°C)-44.323.2
Specific thermal capacity (J/kg·°C)-441-
Specific electrical resistivity (Ω mm²/m)0.31--
Deity (kg/dm³)--434
Poisson’s coefficient, ν--241