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SA-29 Grade 43L20

America ASME SA-29Grade43L20 热加工与冷精整碳钢和合金钢棒材通用要求 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals SA-29 Grade 43L20 ASME SA-29/SA-29M America 热加工与冷精整碳钢和合金钢棒材通用要求

Chemical composition(mass fraction)(wt.%) of the SA-29 Grade 43L20

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
Pb 0.1500 0.3500 -
P - 0.0350 -
Ni 1.6500 2.0000 -
Mo 0.2000 0.3000 -
Mn 0.4500 0.6500 -
Cu - 0.3500 -
Cr 0.4000 0.6000 -
C 0.1700 0.2200 -

Mechanical Properties of steel grade SA-29 Grade 43L20

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)
514 (≥) 526 (≥) 24 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade SA-29 Grade 43L20

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 - -     0.22 -  
419 867 - 42.3 113   -  
958 - 24 14.2   323 331

Heat Treatment of steel grade SA-29 Grade 43L20

Heat treated : 1391°C - 1217°C

Technological Curves of steel grade SA-29 Grade 43L20

Cross Reference Table (Equivalent Grade) of SA-29 Grade 43L20

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