St70F

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#St70F

Description

Austria ONORM St70F Austrian structural steel and St70F Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: St70F

Category	Type	Steel Grade	Standard	Country	Application
Steel Grades	Structure Steel	St70F	ONORM	Austria	Austrian structural steel
		1214
		12L14
		250
		400
		St34F
		St37F
		St42F
		St50F
		St52F
		St60F

Chemical composition(mass fraction)(wt.%) of the St70F

C(％)	P(％)	S(％)
0.55	0.050	0.05

Mechanical Properties of steel grade St70F

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)
522 (≥)	846 (≥)	14	42	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	313

Physical Properties of steel grade St70F

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
33	-	-			0.34	-
688	992	-	33.3	121		-
119	-	12	34.2			231	311

Heat Treatment of steel grade St70F

Heat treated : 1899°C - 1985°C

Technological Curves of steel grade St70F

No Curve

Cross Reference Table (Equivalent Grade) of St70F

Grade	Standard	Country	Application
St70F	ONORM	Austria	Austrian structural steel

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Rfq.: sales@longhaisteel.com

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