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A249 Type 309

America ASTM A249Type309 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: A249Type309 / A249 Type 309
Category Grade Standard Region/Area Standard Content
Metals A249 Type 309 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 Type 309

Element Min Max Similar

Mechanical Properties of steel grade A249 Type 309

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)
956 (≥) 539 (≥) 44 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade A249 Type 309

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 - -     0.12 -  
165 568 - 32.3 312   -  
743 - 23 31.2   214 114

Heat Treatment of steel grade A249 Type 309

Heat treated : 1297°C - 1214°C

Technological Curves of steel grade A249 Type 309

Cross Reference Table (Equivalent Grade) of A249 Type 309

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