Republic 80

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#Republic # #80

Description

Republic 80 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: Republic 80

Category	Type	Steel Grade
Steel Grades	Carbon Steel	Republic 80
		Orelloy 60
		Orelloy 65
		Orelloy 70
		Orelloy 242
		Orelloy 588
		Orelloy AR
		Pitt-Ten No.1
		Republic 50
		Republic 60
		Republic 70

Chemical composition(mass fraction)(wt.%) of the Republic 80

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.2	0.15	1.1				1.2-1.75
Mo	Al	Cu	Nb	Ti	V	Ce
0.2-0.3		1.0-1.5	≥ 0.01		≥0.02
N	Co	Pb	B	Other

Mechanical Properties of steel grade Republic 80

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)
439 (≥)	228 (≥)	32	34	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	313

Physical Properties of steel grade Republic 80

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	-	-			0.43	-
977	372	-	43.3	231		-
214	-	24	43.2			133	442

Heat Treatment of steel grade Republic 80

Heat treated : 1192°C - 1572°C

Technological Curves of steel grade Republic 80

No Curve

Cross Reference Table (Equivalent Grade) of Republic 80

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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