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Home  >  Import special steel  >  Gear steel
Product Details
Product Name: 25MnCr5 gear steel
Product Type: 25MnCr5 gear steel
Product Brand: Cutting Steel
On a: 20MnCr5 gear steel
Under a: 60Si2Mn spring steel
Product Description  

Gear Steel: 25MnCr5

● Features and Scope:
Is imported from Germany CrMn low-alloy steel. Has good thermal processing performance, good hardenability and cutting performance. Used in the production of car travel gear and shaft.
● Chemical Composition:
Carbon C: 0.23 ~ 0.28
Si Si: ≤0.25
Mn Mn: 0.50 ~ 0.80
Sulfur S: 0.010 ~ 0.035
Phosphorus P: ≤0.035
Chromium Cr: 0.80 ~ 1.10
● Mechanical Properties:
Tensile strength σb (MPa): 1587
Yield strength σs (MPa): 1213
Elongation δ5 (%): 7.9
Reduction of ψ (%): 36
Impact toughness αku (J / cm2): 51
Hardness: 268HB
Sample size: a sample
● Heat treatment and microstructure specifications:
Heat treatment specifications: 890 ℃ normalizing, heat 2h, air-cooled; 830 ℃ oil quenching, 190 ℃ tempering, heat 2h, air-cooled.
Microstructure: tempered martensite + ferrite.

Related products  
SAE8260H gear steel
18CrMnMoB gear steel
28MnCr5 gear steel
25MnCr5 gear steel
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