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SA-268 TP 446

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America ASME SA-268TP446 般用途无缝和焊接铁素体和马氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-268TP446 / SA-268 TP 446
Category Grade Standard Region/Area Standard Content
Metals SA-268 TP 446 ASME SA-268/SA-268M America 般用途无缝和焊接铁素体和马氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the SA-268 TP 446

Element Min Max Similar
Si - 0.7500 -
S - 0.0300 -
P - 0.0400 -
Ni - 0.5000 -
N 0.1000 1.2500 -
Mn - 1.5000 -
Cr 23.0000 30.0000 -
C - 0.2000 -

Mechanical Properties of steel grade SA-268 TP 446

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)
488 (≥) 353 (≥) 22 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade SA-268 TP 446

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
23 - -     0.31 -  
496 762 - 34.3 231   -  
248 - 24 34.2   214 323

Heat Treatment of steel grade SA-268 TP 446

Heat treated : 1179°C - 1836°C

Technological Curves of steel grade SA-268 TP 446

Cross Reference Table (Equivalent Grade) of SA-268 TP 446

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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