AWS ER312

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Description

AWS ER312 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: AWS ER312

Category	Type	Steel Grade
Steel Grades	Mould Steel	AWS ER312
		AWS ER309Mo
		UNS S30982
		AWS ER309LMo
		UNS S30986
		AWS ER309Si
		UNS S30981
		AWS ER309LSi
		UNS S30988
		AWS ER310
		UNS S31080

Chemical composition(mass fraction)(wt.%) of the AWS ER312

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15	0.3-0.65	1.0-2.5	0.03	0.03	28-32	8-10.5
Mo	Al	Cu	Nb	Ti	V	Ce
≤0.75		≤0.75
N	Co	Pb	B	Other

Mechanical Properties of steel grade AWS ER312

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)
449 (≥)	152 (≥)	23	34	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

Physical Properties of steel grade AWS ER312

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
41	-	-			0.14	-
112	631	-	22.3	131		-
878	-	33	23.2			311	244

Heat Treatment of steel grade AWS ER312

Heat treated : 1339°C - 1519°C

Technological Curves of steel grade AWS ER312

No Curve

Cross Reference Table (Equivalent Grade) of AWS ER312

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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Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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