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A209 Grade T1a

America ASTM A209GradeT1a 锅炉和过热器管用无缝碳钼合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A209GradeT1a / A209 Grade T1a
Category Grade Standard Region/Area Standard Content
Metals A209 Grade T1a ASTM A209/A209M America 锅炉和过热器管用无缝碳钼合金钢

Chemical composition(mass fraction)(wt.%) of the A209 Grade T1a

Element Min Max Similar
Mo 0.4400 0.6500 -
P - 0.0250 -
S - 0.0250 -
Mn 0.3000 0.8000 -
Si 0.1000 0.5000 -
C 0.1500 0.2500 -
Si 0.1000 0.5000 -
S - 0.0250 -
P - 0.0250 -
Mo 0.4400 0.6500 -
Mn 0.3000 0.8000 -
C 0.1500 0.2500 -

Mechanical Properties of steel grade A209 Grade T1a

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)
222 (≥) 112 (≥) 43 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade A209 Grade T1a

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
31 - -     0.32 -  
215 813 - 31.3 243   -  
914 - 32 22.2   324 133

Heat Treatment of steel grade A209 Grade T1a

Heat treated : 1844°C - 1643°C

Technological Curves of steel grade A209 Grade T1a

Cross Reference Table (Equivalent Grade) of A209 Grade T1a

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