A Structural Stainless Steel with Excellent （一个结构性的不锈钢）.pdfVIP

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A Structural Stainless Steel with Excellent （一个结构性的不锈钢）.pdf

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A Structural Stainless Steel with Excellent （一个结构性的不锈钢）

JFE TECHNICAL REPORT No. 12 (Oct. 2008) A Structural Stainless Steel with Excellent Corrosion Resistance in Welding: JFE410RW† FUJITA Kenichi*1 YAGINUMA Hiroshi*2 KAKIHARA Setsuo*3 Abstract: from the chemical composition ultimately determined. A newly developed stainless steel JFE410RW is supe - rior in corrosion resistance at weld heat affected zone (HAZ) area. Its main usage is coal and iron ore wagon 2. Experiment Method bodies. Two main elements are essential for intergranu- 2.1 Test Materials lar corrosion resistance of weld HAZ. (1) The structure of weld HAZ must be martensite. (2) Precipitation of Cr Tests were performed with JFE410DH4) (a material carbide and nitride must be prevented by adding Tita- developed earlier for structural purposes), a new steel nium to stabilize C and N. JFE410RW is produced produced by adding Ti to JFE410DH, and five other smoothly as hot coil products, and shows good mechani- steels produced by adjusting the values of Mn, Ni, and cal properties and good toughness at low temperatures. Ti in different proportions. Thus, the seven steels shown in Table 1 were produced and used for the tests. Steel plates