• WQ690D/WH80Q

Certificates

WKZ043-2006       WQ690D(WH80Q

1. steel ingot and billet heating according to Ⅱgroup steel, highest heating temperature 1260 ℃, 1200~1230℃temperature soaking pit.

2. according to the Ⅱtype controlled rolling, air steel thickness > 2 h, Ⅱstage open rolling temperature ≤930 ℃, finishing temperature ≤860 ℃.

3, quenching, heat temperature:940℃heat preservation time 25 min. According to the current  process WH80Q to execution for cooling.

4 tempering technology is not confirm.

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