.

ASTM A789 Gerneral Service Stainless Steel Pipe

The has good welding performance. Compared with ferritic stainless steel and , it is not like the welding heat affected zone of ferritic stainless steel, and the plastic toughness is greatly reduced due to severe grain coarsening. Nor is it sensitive to hot cracking of welds like austenitic stainless steel.

Due to its special advantages, duplex stainless steel is widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, papermaking machinery and other industrial fields. In recent years, it has also been studied in the field of bridge load-bearing structures. Prospects.

Duplex stainless steel is half of the ferrite phase and austenite phase in its solidified structure, and the minimum phase content may be up to 30%.

GRADES:

S31803/S32205, S32750, S32760, S31500, S32001, S32003, S32304

SPECIFICATIONS:

ASTM A790 (ASME SA790)

ASTM A928 (ASME SA928) (Duplex) Stainless Steel Pipe



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