优质碳素钢 ——
C ≥ 0.65
Mn ≥ 0.60
淬火并回火硬度：420HV ~ 520HV
等温淬火硬度：500HV ~ 560HV |
硅锰钢 ——
C ≥ 0.5
Si ≥ 1.5
Mn ≥ 0.7
淬火并回火硬度：420HV ~ 560HV |
C ≤ 0.15
Mn ≤ 2.00
Si ≤ 1.50
Cr：16 ~ 20
Ni：6 ~ 12
P ≤ 0.045
S ≤ 0.03
Mo ≤ 0.8
冷加工 |
C ≥ 0.15
Mn ≤ 1.00
Si ≤ 1.00
Cr：11.5 ~ 14
Ni ≤ 1.00
P ≤ 0.04
S ≤ 0.03
淬火并回火硬度：440HV ~ 560HV |
Plain, i.e. pins to be supplied in naturalfinish, treated with a protective lubricant, unless otherwise specified by agreement between the customer and the supplier. If pins are surface coated, appropriate plating or coating processes should be employed to avoid hydrogen embrittlement. Due to the risk of hydrogen embrittlement, pins should not be electroplated or phosphate-coated. If electroplating or phosphate coating is required for corrosionprevention, by agreement between the customer and the supplier, it is mandatory that the pins be baked immediately after plating to minimize the risk of hydrogen embrittlement; see also information on hydrogen embrittlement relief in ISO 4042. Nevertheless, freedom from hydrogen embrittlement is not absolutely guaranteed.
All tolerances shall apply prior to the application of a plating or coating. |
Plain, i . e. pins to be supplied in naturalfinish. |
