JIS S 15 CK

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JIS JIS S 15 CK Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Alloy Steel: JIS S 15 CK

Category	Type	Steel Grade	Standard
Steel Grades	Alloy Steel	JIS S 15 CK	JIS
		JIS SCr 3 H
		JIS SCr 4 H
		JIS SMn 1 H
		JIS SMn 2
		JIS SMn 2 H
		JIS SNCM 21
		JIS SNCM 21 H
		JIS SNCM 8
		JIS SUP 10
		JIS SUP 11

Chemical composition(mass fraction)(wt.%) of the JIS S 15 CK

Element	Weight %
C	0.13-0.18
Mn	0.30-0.60
P	0.04 (max)
S	0.05 (max)

Mechanical Properties of steel grade JIS S 15 CK

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
447 (≥)	629 (≥)	32	31	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	232

Physical Properties of steel grade JIS S 15 CK

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
31	-	-			0.33	-
365	187	-	33.3	134		-
261	-	22	33.2			344	324

Heat Treatment of steel grade JIS S 15 CK

Heat treated : 1582°C - 1754°C

Technological Curves of steel grade JIS S 15 CK

No Curve

Cross Reference Table (Equivalent Grade) of JIS S 15 CK

Grade	Standard	Country	Application
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar

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