High-carbon chromium bearing steel is the perfect material for bearing,through the proper method of heat treatment and cold treatment,the steel is high hardness anti-fatigue,anti-grinded and dimension stability etc.
Chemical composition of bearing steel Gcr15:
|
元素含量 Chemical composition (WT%) |
C0.95 ~ 1.05 NI＜0.23 Sb＜0.002 |
Cr1.40 ~ 1.65 Cu≤0.25 Pb＜0.002 |
Si0.15 ~ 0.35 Mo≤0.1 O＜0.001 |
Mn0.25 ~ 0.45 Sn＜0.03 Al＜0.005 |
P≤0.027 As＜0.04 Ca＜0.01 |
S≤0.02 Ti＜0.005 |
According with the requirements of EU ROHS Directive:
| 序號 | 項目 | 限值(PPm) |
| 1 | 鎘 Cd | ≤ 100 |
| 2 | 鉛 Pb | ≤ 1000 |
| 3 | 汞 Hg | ≤ 1000 |
| 4 | 六價鉻 Cr6+ | ≤ 1000 |
| 5 | 多溴聯(lián)苯 PBBS(一溴~十溴) | ≤ 1000 |
| 6 | 多溴二苯醚 PBDES(一溴~九溴) | ≤ 1000 |
