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A249 N08811

America ASTM A249N08811 锅炉、过热器、换热器和冷凝器用焊接奥氏体钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A249N08811 / A249 N08811
Category Grade Standard Region/Area Standard Content
Metals A249 N08811 ASTM A249/A249M America 锅炉、过热器、换热器和冷凝器用焊接奥氏体钢管

Chemical composition(mass fraction)(wt.%) of the A249 N08811

Element Min Max Similar
C 0.0500 0.1000 -
Mn - 1.5000 -
P - 0.0450 -
S - 0.0150 -
Si - 1.0000 -
Ni 30.0000 35.0000 -
Cr 19.0000 23.0000 -
Cu - 0.7500 -
Ti 0.2500 0.6000 -
Al 0.2500 0.6000 -
Fe 39.5000 - -
Al+Ti 0.8500 1.2000 -

Mechanical Properties of steel grade A249 N08811

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)
531 (≥) 766 (≥) 21 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade A249 N08811

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 - -     0.41 -  
391 346 - 22.3 423   -  
842 - 13 12.2   444 221

Heat Treatment of steel grade A249 N08811

Heat treated : 1236°C - 1849°C

Technological Curves of steel grade A249 N08811

Cross Reference Table (Equivalent Grade) of A249 N08811

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