JIS SKD 12

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Description

JIS JIS SKD 12 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: JIS SKD 12

Category	Type	Steel Grade	Standard
Steel Grades	Stainless Steel	JIS SKD 12	JIS
		JIS SUS 410
		JIS SUS 416
		JIS SUS 41OS
		JIS SUS 420 J1
		JIS SUS 430
		JIS SUS 431
		JIS SUS 434
		JIS SUS 440 B
		JIS SUS Y 316
		JIS SUS Y 31O

Chemical composition(mass fraction)(wt.%) of the JIS SKD 12

Element	Weight %
C	0.95-1.05
Mn	1.00
Si	0.50
Cr	4.75-5.50
Ni	0.30
Mo	0.90-1.40
V	0.15-0.50
Cu	0.25
P	0.03
S	0.03

Mechanical Properties of steel grade JIS SKD 12

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)
359 (≥)	458 (≥)	11	14	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

Physical Properties of steel grade JIS SKD 12

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
12	-	-			0.21	-
322	139	-	13.3	322		-
996	-	31	42.2			421	114

Heat Treatment of steel grade JIS SKD 12

Heat treated : 1581°C - 1321°C

Technological Curves of steel grade JIS SKD 12

No Curve

Cross Reference Table (Equivalent Grade) of JIS SKD 12

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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