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A874

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America ASTM A874 适于低温使用的铁素体球墨铸铁铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A874 / A874
Category Grade Standard Region/Area Standard Content
Metals A874 ASTM A874/A874M America 适于低温使用的铁素体球墨铸铁铸件

Chemical composition(mass fraction)(wt.%) of the A874

Element Min Max Similar
Si 1.2000 2.3000 -
P - 0.0300 -
Ni - 1.0000 -
Mn - 0.2500 -
Mg - 0.0700 -
Cu - 0.1000 -
Cr - 0.0700 -
C 3.0000 3.7000 -

Mechanical Properties of steel grade A874

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)
494 (≥) 417 (≥) 42 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade A874

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
14 - -     0.11 -  
945 954 - 14.3 341   -  
991 - 14 32.2   212 114

Heat Treatment of steel grade A874

Heat treated : 1812°C - 1234°C

Technological Curves of steel grade A874

Cross Reference Table (Equivalent Grade) of A874

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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