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Description

Romania STAS/SR 20VMn12 Structural steel and 20VMn12 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 20VMn12
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20VMn12 STAS/SR Romania Structural steel
OLT35
OLT65
10Ni35
OLT35R
OLT45R
C-75
J-55
N-80
P-105
15VMn11

Chemical composition(mass fraction)(wt.%) of the 20VMn12

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) Cu(%)
0.15-0.22 0.17-0.37 1.00-1.30 0.035 0.035 0.30 0.30 0.06 0.10-0.20 0.30

Mechanical Properties of steel grade 20VMn12

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)
772 (≥) 832 (≥) 11 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 20VMn12

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
12 - -     0.24 -  
987 164 - 11.3 123   -  
352 - 32 24.2   333 432

Heat Treatment of steel grade 20VMn12

Heat treated : 1915°C - 1226°C

Technological Curves of steel grade 20VMn12

Cross Reference Table (Equivalent Grade) of 20VMn12

Grade Standard Country Application
20VMn12 STAS/SR Romania Structural steel

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