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30MoCrNi20S

Description

Romania STAS/SR 30MoCrNi20S Alloy structural steel and 30MoCrNi20S Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 30MoCrNi20S
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 30MoCrNi20S STAS/SR Romania Alloy structural steel
25MnCrSi11XS
26MoCr11
26MoCr11S
26MoCr11X
26MoCr11XS
28TiMnCr12
28TiMnCr12S
28TiMnCr12X
28TiMnCr12XS
30MoCrNi20

Chemical composition(mass fraction)(wt.%) of the 30MoCrNi20S

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Cu(%) Ti(%)
0.26-0.34 0.17- 0.37 0.30-0.60 0.035 0.020-0.040 1.80-2.20 1.80-2.20 0.30-0.50 0.3 0.02

Mechanical Properties of steel grade 30MoCrNi20S

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)
977 (≥) 381 (≥) 21 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 30MoCrNi20S

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 - -     0.23 -  
532 196 - 11.3 324   -  
142 - 22 43.2   112 441

Heat Treatment of steel grade 30MoCrNi20S

Heat treated : 1526°C - 1242°C

Technological Curves of steel grade 30MoCrNi20S

Cross Reference Table (Equivalent Grade) of 30MoCrNi20S

Grade Standard Country Application
30MoCrNi20S STAS/SR Romania Alloy structural steel

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