1. steel ingot temperature with clear (≥150 ℃) ,after clean up qualified can into the furnace temperature outfit, steel ingot after cleaning up 3 hours must be into the furnace for heating,.

2. ingot with billet according to Ⅱgroup steel billet heating system.

3. To ensure that the steel plate surface quality, high pressure water descaling must be clean.

4. Open rolling temperature: 1050-1100 ℃, finishing temperature of 820-880 ℃, the last three way time single channel second pressure next rate is not less than 15%.

5. Heat treatment process  10CRMOAL

Tempering temperature: 650 + 10 ℃, heat preservation time 3.5 min/mm