The heat treatment process of Q390C steel plate includes hot rolling and normalizing. The technical conditions corresponding to different thickness are relatively different. A572 gr.50 hot rolled steel plate, Q390C steel plate usage: relatively more used occasions, more in the direction of building structure.
Participating tenders with clients is part of our A572 gr.50 hot rolled steel plate business. Every year, we support a lot of clients to win tenders and supply steel materials to their govenment progects or state owned enterprise. Until now, we have built A572 gr.50 hot rolled steel plate long-term cooperation for many govermental departments of different countries such as Peru, Bangladesh, Indonesia, Egypt, Qatar, etc.. And we have built certain influence and credibility on the International market.
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Key points of welding joint design: under the condition of satisfying the requirement of welding penetration depth and weld density, small welding groove Angle and gap should be adopted.In the A572 gr.50 hot rolled steel plate Angle joint, a symmetrical groove or a groove inclined to the side plate is used.Double - sided groove symmetric welding is used instead of single groove asymmetric welding.In a T-shaped or Angle joint, the end of the plate subjected to welding tensile stress in the thickness direction extends out of the joint weld zone.