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A268 18Cr-2Mo

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America ASTM A26818Cr-2Mo 一般设备用无缝和焊接铁素体与马氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A26818Cr-2Mo / A268 18Cr-2Mo
Category Grade Standard Region/Area Standard Content
Metals A268 18Cr-2Mo ASTM A268/A268M America 一般设备用无缝和焊接铁素体与马氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the A268 18Cr-2Mo

Element Min Max Similar
N - 0.0350 -
Mo 1.7500 2.5000 -
Ni - 1.0000 -
Cr 17.5000 19.5000 -
P - 0.0400 -
S - 0.0300 -
Mn - 1.0000 -
Si - 1.0000 -
C - 0.0250 -

Mechanical Properties of steel grade A268 18Cr-2Mo

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)
554 (≥) 593 (≥) 32 43 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade A268 18Cr-2Mo

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 - -     0.22 -  
361 123 - 12.3 131   -  
691 - 12 31.2   221 333

Heat Treatment of steel grade A268 18Cr-2Mo

Heat treated : 1722°C - 1784°C

Technological Curves of steel grade A268 18Cr-2Mo

Cross Reference Table (Equivalent Grade) of A268 18Cr-2Mo

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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