Some of Several Usual Hardening Surface Treatment Comparison
Processing |
Carburization |
Nitrogenization |
Induction quenching |
Time |
Moderately long |
Long(normally cost 3-9 hours) |
Very short |
Depth |
Moderate |
Shallow(normally less than 0.5mm) |
Deep |
Material |
Low carbon steel or alloy steel |
Alloy steel( the C content is in 0.2%-0.5%) |
Medium carbon steel |
Mechanical Properties |
Good hardness, high wear resistance, the best strong contact stress resistance, good fatigue strength and adhesiveness |
Good hardness, high wear resistance, strong contact stress resistance, good fatigue strength and the best adhesiveness |
Good hardness, high wear resistance, strong contact stress resistance, good fatigue strength and satisfying adhesiveness |
Application |
The parts require good wear resistance and will bear strong contact stress. |
The parts bear certain contact stress or require good wear resistance working under 500 ℃.
|
The parts require good wear resistance and bear moderate high contact stress. |
Features |
High temperature, moderately long time, large deformation. |
Low temperature, the most long time, the minimum deformation, good corrosion resistance and stable dimension. |
Small deformation,high effectiveness,is easy for mass production, save resource. |
Examples |
20 20Cr 15CrMn 20CrMn 12CrNi3A 18CrNiWA |
42CrMo |
45 42CrMo 34CrNiMo |