AWS EM3

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Description

AWS EM3 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: AWS EM3

Category	Type	Steel Grade
Steel Grades	Mould Steel	AWS EM3
		EF3
		UNS K21485
		EF4
		UNS K12048
		EF5
		UNS K41370
		EF6
		UNS K21135
		AWS EM2
		UNS K10882

Chemical composition(mass fraction)(wt.%) of the AWS EM3

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.1	0.2-0.6	1.4-1.8	0.01	0.015	≤0.55	1.9-2.6
Mo	Al	Cu	Zr	Ti	V	Ce
0.25-0.65	≤0.1	≤0.25	≤0.1	≤0.1	≤0.04
N	Co	Pb	B	Other

Mechanical Properties of steel grade AWS EM3

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)
443 (≥)	638 (≥)	22	44	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	413

Physical Properties of steel grade AWS EM3

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
43	-	-			0.22	-
753	417	-	33.3	244		-
435	-	34	32.2			412	232

Heat Treatment of steel grade AWS EM3

Heat treated : 1129°C - 1695°C

Technological Curves of steel grade AWS EM3

No Curve

Cross Reference Table (Equivalent Grade) of AWS EM3

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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