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A268 Type 446-1

America ASTM A268Type446-1 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: A268Type446-1 / A268 Type 446-1
Category Grade Standard Region/Area Standard Content
Metals A268 Type 446-1 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 Type 446-1

Element Min Max Similar

Mechanical Properties of steel grade A268 Type 446-1

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)
634 (≥) 849 (≥) 34 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade A268 Type 446-1

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 - -     0.33 -  
747 528 - 14.3 231   -  
585 - 13 22.2   332 442

Heat Treatment of steel grade A268 Type 446-1

Heat treated : 1612°C - 1854°C

Technological Curves of steel grade A268 Type 446-1

Cross Reference Table (Equivalent Grade) of A268 Type 446-1

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