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A290 Grade 6 Class T

America ASTM A290Grade6ClassT 减速器环用碳素钢和合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals A290 Grade 6 Class T ASTM A290/A290M America 减速器环用碳素钢和合金钢锻件

Chemical composition(mass fraction)(wt.%) of the A290 Grade 6 Class T

Element Min Max Similar
V 0.0500 0.1500 -
Si - 0.3500 -
S - 0.0150 -
P - 0.0150 -
Ni 3.2500 4.0000 -
Mo 0.3000 0.7000 -
Mn 0.2000 0.6000 -
Cu - 0.3500 -
Cr 1.2500 1.7500 -
C 0.2500 0.3900 -

Mechanical Properties of steel grade A290 Grade 6 Class T

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)
181 (≥) 114 (≥) 31 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade A290 Grade 6 Class T

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
32 - -     0.21 -  
326 425 - 42.3 124   -  
812 - 34 12.2   141 341

Heat Treatment of steel grade A290 Grade 6 Class T

Heat treated : 1576°C - 1753°C

Technological Curves of steel grade A290 Grade 6 Class T

Cross Reference Table (Equivalent Grade) of A290 Grade 6 Class T

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