Certificates

WKZ041-2006         P265GH/SA516Gr.60+S5

1, steel ingot and billet according to Ⅰgroup steel of heating, according to the Ⅱtype controlled rolling, than finishing temperature≤860 ℃.

2, normalized temperature: 910 ±10 ℃;

Normalized furnace heating time ≥1.6 min/mm;

The machine furnace, the furnace bottom quartile heat preservation time≥1.6 min/mm.