Sanitary Stainless Steel Pipe Series

Product Name

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Manufacturing method

■ Smelting method of steel
Steel shall be smelted by electric arc furnace plus refining outside the furnace. Other smelting methods that can meet the requirements of this standard can also be adopted after negotiation between the supplier and the demander and indicated in the contract.

■ Manufacturing method of steel pipe
Steel pipes shall be manufactured by single-sided automatic arc welding with or without filler metal or double-sided automatic arc welding. The specific manufacturing method shall be negotiated by the supplier and the demander and indicated in the contract. When filler metal materials are added during steel pipe manufacturing, the alloy composition of filler metal materials shall not be lower than that of base metal.

Delivery status

Steel pipes shall be delivered in heat treatment and acid pickling state. During heat treatment, continuous or periodic furnace full-length heat treatment shall be adopted. See table 1-5 for the recommended heat treatment system of steel pipes. According to the requirements of the demander, the goods can also be delivered in other states through the agreement between the demander and the demander.

Heat treatment system of steel pipe

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