Research and Development > Technical Report > No.12 Special Issue on “Steel Pipes and Tubes” and “Stainless Steel” > A Structural Stainless Steel with Excellent Corrosion Resistance in Welding: JFE410RW

No.12 Special Issue on “Steel Pipes and Tubes” and “Stainless Steel”

A Structural Stainless Steel with Excellent Corrosion Resistance in Welding: JFE410RW

FUJITA Kenichi     YAGINUMA Hiroshi     KAKIHARA Setsuo

Abstract

A newly developed stainless steel JFE410RW is superior in corrosion resistance at weld heat affected zone (HAZ) area. Its main usage is coal and iron ore wagon bodies. Two main elements are essential for intergranular corrosion resistance of weld HAZ. (1) The structure of weld HAZ must be martensite. (2) Precipitation of Cr carbide and nitride must be prevented by adding Titanium to stabilize C and N. JFE410RW is produced smoothly as hot coil products, and shows good mechanical properties and good toughness at low temperatures.

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