JIS G4051 S09CK Introduce

JIS G4051 S09CK steel is a popular, high-quality steel used in many applications. This steel is known for its excellent strength and wear resistance, which makes it a great choice for many industrial, automotive, and automotive-related applications. It is also a viable material for many other parts and components due to its excellent formability, weldability, and consistent quality. JIS G4051 S09CK steel also has several notable chemical properties that have made it a popular choice for many applications.

Smelting temperature:1735°C - 1476°C

Application:Carbon steel for mechanical structure

JIS G4051 S09CK Material Chemical Composition

The chemical composition of the JIS G4051 S09CK steel are as follows:

ElementMinMax
Silicon (Si)0.10000.3500
Sulfur (S)-0.0250
PhOsphorus (P)-0.0250
(Ni+Cr)-0.3000
Nickel (Ni)-0.2000
Manganese (Mn)0.30000.6000
Copper (Cu)-0.2500
Chromium (Cr)-0.2000
Carbon (C)0.07000.1200

JIS G4051 S09CK Material Mechanical Properties

The mechanical properties of the JIS G4051 S09CK steel are as follows:

YieldRp0.2 ≤ 438 (MPa)
TeileRm≤ 282 (MPa)
ImpactKV/Ku24(J)
ElongationA43%
Reduction in cross section on fractureZ22%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)341

JIS G4051 S09CK Material Thermal Properties

The thermal performance parameters of the JIS G4051 S09CK steel are as follows:

Temperature (°C)41853799
Modulus of elasticity (GPa)-698-
Mean coefficient of thermal expaion ×10-6/(°C)--32
Thermal conductivity (W/m·°C)-14.342.2
Specific thermal capacity (J/kg·°C)-424-
Specific electrical resistivity (Ω mm²/m)0.23--
Deity (kg/dm³)--132
Poisson’s coefficient, ν--224