Certificates

WKZ026-2006          D36

• Perform technical conditions: WJX015-2006, WJX016-2006
• 1. The hest heating temperature  1260 ℃, the temperature of 1220 ~ 1240 ℃soaking pit, high temperature period of heating time≥3.5 h.
• 2. Adopt the Ⅱtype control firm technology, air steel thickness ≥2 h, Ⅱstage open rolling temperature ≤920 ℃,  finishing temperature ≤860 ℃.
• 3. ACC cooling, the temperature return to red 660 ~ 700 ℃.