Certificates

WKZ083-2006  WQ590E(WH70Q)

一, the technical conditions: WYJ049-2006

二, delivery status: adjusting quality delivery

三, process requirements

6. According to the group II steel of heating. The highest heating temperature of 1260 ℃, the temperature of 1200 ~ 1240 ℃soaking pit.

7. The phase II rolling, air steel thickness > 2 h; Phase II open rolling temperature ≤900 ℃,finishing temperature≤860 ℃.

8. Quenching process: the heating temperature: 930 ±10 ℃

Holding time: PLC + 20 min

Cooling: according to the WH80Q current cooling process execution

9. tempering technology to be conformed.