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A249 S31726

America ASTM A249S31726 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: A249S31726 / A249 S31726
Category Grade Standard Region/Area Standard Content
Metals A249 S31726 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 S31726

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 14.5000 17.5000 -
N 0.1000 0.2000 -
Mo 4.0000 5.0000 -
Mn - 2.0000 -
Cr 17.0000 20.0000 -
C - 0.0300 -

Mechanical Properties of steel grade A249 S31726

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)
626 (≥) 171 (≥) 34 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade A249 S31726

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
21 - -     0.13 -  
937 343 - 42.3 112   -  
723 - 11 12.2   223 214

Heat Treatment of steel grade A249 S31726

Heat treated : 1169°C - 1494°C

Technological Curves of steel grade A249 S31726

Cross Reference Table (Equivalent Grade) of A249 S31726

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