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A351 Grade CK20

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America ASTM A351GradeCK20 容压零件用奥氏体及奥氏体铁素体铸铁的技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A351GradeCK20 / A351 Grade CK20
Category Grade Standard Region/Area Standard Content
Metals A351 Grade CK20 ASTM A351/A351M America 容压零件用奥氏体及奥氏体铁素体铸铁的技术规范

Chemical composition(mass fraction)(wt.%) of the A351 Grade CK20

Element Min Max Similar
Si - 1.7500 -
S - 0.0400 -
P - 0.0400 -
Ni 19.0000 22.0000 -
Mo - 0.5000 -
Mn - 1.5000 -
Cr 23.0000 27.0000 -
C 0.0400 0.2000 -

Mechanical Properties of steel grade A351 Grade CK20

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)
883 (≥) 971 (≥) 11 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade A351 Grade CK20

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
33 - -     0.12 -  
651 882 - 31.3 122   -  
479 - 32 13.2   141 323

Heat Treatment of steel grade A351 Grade CK20

Heat treated : 1681°C - 1179°C

Technological Curves of steel grade A351 Grade CK20

Cross Reference Table (Equivalent Grade) of A351 Grade CK20

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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