28MnCr5 Gear Steel Bar

28MnCr5 is imported from Germany CrMn low alloy steel. 28MnCr5 has good hot workability, good hardenability and cutting performance. In the Santana sedan manufacturing reverse gear and second gear, fourth gear output gear, but also in other cars instead of 20CrMnTi manufacture all kinds of gear and gearless.

Chemical Composition:

• Carbon C: 0.25-0.30
• Silicon Si: ≤0.25
• Manganese Mn: 0.50-0.80
• Sulfur: 0.010 ~ 0.035
• Phosphorus P: ≤0.035
• Chromium Cr: 0.80 ~ 1.10
• Nickel Ni: <0.30
• Molybdenum Mo: <0.15

Mechanical Properties:

• Tensile strength σb (MPa): 1307
• Yield strength σs (MPa): 982
• Elongation δ5 (%): 7.3
• Section reduction rate ψ (%): 35
• Impact toughness value αku (J / cm2): 40
• Hardness: 413HB

Related Gear Steel Materials