The features of 30CrMnSiA steel plates:
After quenching and tempering, 30CrMnSiA steel plate has high strength and toughness and good hardenability. After conditioning, 30CrMnSiA steel plate can be used as grinding wheel shaft, gear and chain wheel. 30CrMnSiA steel plate has good workability, small deformation and good fatigue performance.
Chemical composition range of 30CrMnSiA steel plates:
Note: the actual chemical composition of 30CrMnSiA steel plate is based on the steel factory warranty.
30CrMnSiA carbon C:0.28 ~ 0.34
30CrMnSiA silicon Si:0.90 ~ 1.20
30CrMnSiA Cr Cr:0.80 ~ 1.10
30CrMnSiA Ni Ni: less than 0.030
30CrMnSiA Mn Mn:0.80 ~ 1.10
30CrMnSiA sulfur S: less than 0.025
30CrMnSiA copper Cu: less than 0.025
30CrMnSiA phosphorus P: less than 0.025
Mechanical properties range of 30CrMnSiA steel plates:
Note: the actual mechanical properties of of 30CrMnSiA steel plate shall be based on the steel factory warranty.
Tensile strengthσb(MPa)：≥1080
Yield strengthσs(MPa)：≥835
Elongationδ5(%)：≥10
Section shrinkage ratioψ(%)：≥45
Impact energy Akv(J)：≥39
Impact toughness valueαkv(J/cm2)：≥49
Hardness: ≤229HB
Sample size: sample blank size is 18mm
The heat treatment process of 30CrMnSiA steel plates:
Quenching at 880℃, oil cooling, tempering at 540℃, water cooling and oil cooling.
Application of 30CrMnSiA steel plate:
30CrMnSiA steel plate is used for shaft, piston parts, automobile, aircraft and other special wear resistant parts.
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