JIS G7401 CC15A Introduce

JIS G7401 CC15A is a Japanese steel grade standard that includes carbon steel, alloy steel and stainless steel. It is mainly used for structural applications and is one of the most commonly used grades of steel in Japan. JIS G7401 CC15A carbon steel grade is a medium carbon steel with a manganese content of 1.2%. It has good hardness and weldability, good machinability and can be easily formed and machined. It is mainly used for structural applications and is commonly used in construction, shipbuilding, bridges, automobile and other industries. This grade is usually supplied in the annealed or normalized condition.

Smelting temperature:1382°C - 1684°C

Application:Cold heading and cold extrusion steel

JIS G7401 CC15A Material Chemical Composition

The chemical composition of the JIS G7401 CC15A steel are as follows:

ElementMinMax
Aluminum (Al)0.0200-
Sulfur (S)-0.0400
PhOsphorus (P)-0.0400
Manganese (Mn)0.30000.6000
Silicon (Si)-0.1000
Carbon (C)0.12000.1800

JIS G7401 CC15A Material Mechanical Properties

The mechanical properties of the JIS G7401 CC15A steel are as follows:

YieldRp0.2 ≤ 794 (MPa)
TeileRm≤ 868 (MPa)
ImpactKV/Ku12(J)
ElongationA13%
Reduction in cross section on fractureZ42%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)323

JIS G7401 CC15A Material Thermal Properties

The thermal performance parameters of the JIS G7401 CC15A steel are as follows:

Temperature (°C)11595271
Modulus of elasticity (GPa)-591-
Mean coefficient of thermal expaion ×10-6/(°C)--22
Thermal conductivity (W/m·°C)-21.321.2
Specific thermal capacity (J/kg·°C)-222-
Specific electrical resistivity (Ω mm²/m)0.24--
Deity (kg/dm³)--333
Poisson’s coefficient, ν--333