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AS3678 Grade 250

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China 舞钢Q/WTB AS3678Grade250 合同号“99CK-A-19”技术要求及工艺要点 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AS3678Grade250 / AS3678 Grade 250
Category Grade Standard Region/Area Standard Content
Metals AS3678 Grade 250 WJX 033 China 合同号“99CK-A-19”技术要求及工艺要点

Chemical composition(mass fraction)(wt.%) of the AS3678 Grade 250

Element Min Max Similar
Cu+Ni+Cr+Mo - 1.0000 -
CE - 0.4500 -
Mo - 0.1000 -
Cr - 0.3000 -
Ni - 0.5500 -
Cu - 0.4000 -
Ti - 0.0400 -
Al - 0.1000 -
S - 0.0400 -
P - 0.0400 -
Mn - 1.7000 -
Si - 0.5500 -
C - 0.2200 -

Mechanical Properties of steel grade AS3678 Grade 250

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)
334 (≥) 354 (≥) 23 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade AS3678 Grade 250

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
24 - -     0.13 -  
755 682 - 21.3 342   -  
818 - 21 41.2   243 444

Heat Treatment of steel grade AS3678 Grade 250

Heat treated : 1748°C - 1979°C

Technological Curves of steel grade AS3678 Grade 250

Cross Reference Table (Equivalent Grade) of AS3678 Grade 250

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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