A320 L7M

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America ASTM A320L7M 低温用合金钢螺栓材料规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A320L7M / A320 L7M

Category	Grade	Standard	Region/Area	Standard Content
Metals	A320 L7M	ASTM A320/A320M	America	低温用合金钢螺栓材料规格

Chemical composition(mass fraction)(wt.%) of the A320 L7M

Element	Min	Max	Similar
Si	0.1500	0.3500	-
S	-	0.0400	-
P	-	0.0350	-
Mo	0.1500	0.2500	-
Mn	0.7500	1.0000	-
Cr	0.8000	1.1000	-
C	0.3800	0.4800	-

Mechanical Properties of steel grade A320 L7M

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)
729 (≥)	688 (≥)	41	21	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	313

Physical Properties of steel grade A320 L7M

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
13	-	-			0.11	-
714	325	-	14.3	333		-
452	-	22	14.2			244	222

Heat Treatment of steel grade A320 L7M

Heat treated : 1474°C - 1556°C

Technological Curves of steel grade A320 L7M

No Curve

Cross Reference Table (Equivalent Grade) of A320 L7M

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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