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WKZ071-2005 P355GH

1, must use Ⅱstage rolling, air steel thickness > 2 h, Ⅱstage finishing rolling temperature ≤900 ℃.

2, normalized

normalized technology : normalizing furnace: 910±10℃.

Total heat time ≥1.5min/mm

outside machine furnace and car bottom furnace:920±10℃

the heat preservation time ≥1.5min/mm

Main Products

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ASTM A572 Grade 60,A572 Gr.60,A

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ASTM A572 Grade 50|A572 Gr.50|A

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ASTM A515 Grade 60,A515 Gr.60,A

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