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A579 Grade 51

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America ASTM A579Grade51 超高强度合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A579Grade51 / A579 Grade 51
Category Grade Standard Region/Area Standard Content
Metals A579 Grade 51 ASTM A579/A579M America 超高强度合金钢锻件

Chemical composition(mass fraction)(wt.%) of the A579 Grade 51

Element Min Max Similar
Sn - 0.0500 -
Si - 1.0000 -
S - 0.0250 -
P - 0.0250 -
Ni - 0.7500 -
Mo - 0.5000 -
Mn - 1.0000 -
Cu - 0.5000 -
Cr 11.5000 13.5000 -
C - 0.1500 -
Al - 0.0500 -

Mechanical Properties of steel grade A579 Grade 51

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)
868 (≥) 931 (≥) 32 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade A579 Grade 51

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
21 - -     0.43 -  
681 592 - 13.3 341   -  
939 - 14 23.2   143 433

Heat Treatment of steel grade A579 Grade 51

Heat treated : 1595°C - 1251°C

Technological Curves of steel grade A579 Grade 51

Cross Reference Table (Equivalent Grade) of A579 Grade 51

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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