Stelmax 70

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#Stelmax # #70

Description

Stelmax 70 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: Stelmax 70

Category	Type	Steel Grade
Steel Grades	Carbon Steel	Stelmax 70
		Steloc Cr.60
		Steloc Cr.65
		Steloc Wearwell
		Stelcoloy 50
		Stelcoloy 60
		Stelcoloy 70
		Stelcoloy A242
		Stelmax 45
		Stelmax 50
		Stelmax 60

Chemical composition(mass fraction)(wt.%) of the Stelmax 70

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15	0.3	1.5
Mo	Al	Cu	Nb	Ti	V	Ce
			0.005		0.01
N	Co	Pb	B	Other

Mechanical Properties of steel grade Stelmax 70

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)
634 (≥)	459 (≥)	12	23	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	311

Physical Properties of steel grade Stelmax 70

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	-
215	724	-	41.3	132		-
248	-	32	32.2			221	321

Heat Treatment of steel grade Stelmax 70

Heat treated : 1765°C - 1281°C

Technological Curves of steel grade Stelmax 70

No Curve

Cross Reference Table (Equivalent Grade) of Stelmax 70

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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