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America UNS K21030 合金钢焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K21030 / K21030
Category Grade Standard Region/Area Standard Content
Metals K21030 -- America 合金钢焊条

Chemical composition(mass fraction)(wt.%) of the K21030

Element Min Max Similar
Zr - 0.1000 -
V - 0.0300 -
Total others - - -
Ti - 0.1000 -
Si 0.2000 0.6000 -
S - 0.0100 -
P - 0.0100 -
Ni 2.0000 2.8000 -
Mo 0.3000 0.6500 -
Mn 1.4000 1.8000 -
Cu - 0.2500 -
Cr - 0.6000 -
C - 0.1000 -
Al - 0.1000 -

Mechanical Properties of steel grade K21030

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)
147 (≥) 654 (≥) 24 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade K21030

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
43 - -     0.13 -  
692 998 - 12.3 234   -  
397 - 14 21.2   231 111

Heat Treatment of steel grade K21030

Heat treated : 1233°C - 1117°C

Technological Curves of steel grade K21030

Cross Reference Table (Equivalent Grade) of K21030

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