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America UNS K20500 合金钢焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K20500 / K20500
Category Grade Standard Region/Area Standard Content
Metals K20500 -- America 合金钢焊条

Chemical composition(mass fraction)(wt.%) of the K20500

Element Min Max Similar
Total others - - -
Si 0.4000 0.7000 -
S - 0.0250 -
P - 0.0250 -
Ni - 0.2000 -
Mo 0.4000 0.6500 -
Mn 0.4000 0.7000 -
Cu - 0.3500 -
Cr 1.2000 1.5000 -
C - 0.0500 -

Mechanical Properties of steel grade K20500

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)
529 (≥) 671 (≥) 42 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade K20500

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
34 - -     0.13 -  
252 452 - 22.3 242   -  
472 - 33 33.2   443 434

Heat Treatment of steel grade K20500

Heat treated : 1859°C - 1839°C

Technological Curves of steel grade K20500

Cross Reference Table (Equivalent Grade) of K20500

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