St12

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China 首钢Q/SG St12 冷轧低碳钢板和钢带第3部分：德标(DIN)冷轧低碳钢板及带钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St12 / St12

Category	Grade	Standard	Region/Area	Standard Content
Metals	St12	Q/SGZGS 324.3	China	冷轧低碳钢板和钢带第3部分：德标(DIN)冷轧低碳钢板及带钢

Chemical composition(mass fraction)(wt.%) of the St12

Element	Min	Max	Similar
C	-	0.1200	-
Mn	-	0.6000	-
P	-	0.0450	-
S	-	0.0450	-
C	-	0.1200	-
Mn	-	0.6000	-
P	-	0.0400	-
S	-	0.0400	-
Alt	0.0200	-	-

Mechanical Properties of steel grade St12

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)
335 (≥)	826 (≥)	42	22	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	314

Physical Properties of steel grade St12

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
44	-	-			0.41	-
161	763	-	14.3	232		-
884	-	43	33.2			224	343

Heat Treatment of steel grade St12

Heat treated : 1773°C - 1118°C

Technological Curves of steel grade St12

No Curve

Cross Reference Table (Equivalent Grade) of St12

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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Rfq.: sales@longhaisteel.com

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