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38CrA

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China GJB 38CrA 火炮零件用无缝钢管规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 38CrA / 38CrA
Category Grade Standard Region/Area Standard Content
Metals 38CrA GJB 6483 China 火炮零件用无缝钢管规范

Chemical composition(mass fraction)(wt.%) of the 38CrA

Element Min Max Similar
C 0.3400 0.4200 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
Cr 0.8000 1.1000 -
Ni - 0.4000 -
S - 0.0250 -
P - 0.0250 -
Cu - 0.2500 -
W - 0.2000 -
Mo - 0.1500 -
V - 0.0500 -
Ti - 0.0300 -
C 0.3400 0.4200 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
Cr 0.8000 1.1000 -
Ni - 0.4000 -
S - 0.0250 -
P - 0.0250 -
Cu - 0.2500 -
W - 0.2000 -
Mo - 0.1500 -
V - 0.0500 -
Ti - 0.0300 -
C 0.3400 0.4200 -
Si 0.1700 0.3700 -
Mn 0.5000 0.8000 -
P - 0.0250 -
S - 0.0200 -
Cr 0.8000 1.1000 -
Ni - 0.3000 -
Mo - 0.1000 -
Cu - 0.2500 -

Mechanical Properties of steel grade 38CrA

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)
552 (≥) 827 (≥) 13 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 38CrA

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 - -     0.44 -  
945 127 - 23.3 313   -  
332 - 24 13.2   324 421

Heat Treatment of steel grade 38CrA

Heat treated : 1351°C - 1612°C

Technological Curves of steel grade 38CrA

Cross Reference Table (Equivalent Grade) of 38CrA

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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Jiangyou Longhai Special Steel Co.,Ltd.

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