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A320 L7B

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America ASTM A320L7B 低温用合金钢螺栓材料规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A320L7B / A320 L7B
Category Grade Standard Region/Area Standard Content
Metals A320 L7B ASTM A320/A320M America 低温用合金钢螺栓材料规格

Chemical composition(mass fraction)(wt.%) of the A320 L7B

Element Min Max Similar

Mechanical Properties of steel grade A320 L7B

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
879 (≥) 977 (≥) 24 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade A320 L7B

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
32 - -     0.21 -  
773 173 - 11.3 231   -  
331 - 32 21.2   242 321

Heat Treatment of steel grade A320 L7B

Heat treated : 1346°C - 1853°C

Technological Curves of steel grade A320 L7B

Cross Reference Table (Equivalent Grade) of A320 L7B

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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