High-temperature materials for boilers and pressure vessels: SB410, SB480, SB480M
Check the allowable stress at operating temperature and for long-term use. Supply SB material according to JIS G 3103 in cut plates and processed forms.
In boilers and pressure vessels, high temperatures can lead to prolonged application of pressure and stress, with repeated heating and cooling cycles. Since the strength of steel decreases with rising temperature, material selection cannot be based solely on tensile strength at room temperature. We propose carbon steel plates for boilers and pressure vessels, referred to as "SB materials." SB410, SB450, and SB480 are steel plates according to JIS G 3103. As the operating temperature increases, the allowable tensile stress decreases, and even high-strength steel grades at room temperature may show minimal differences at high temperatures. SB450M and SB480M, which have added Mo, are candidate materials that help mitigate strength reduction at high temperatures. Selection should be based on applicable regulations, design standards, operating temperature, pressure, and holding time.
- Company：Kumagai Specialty Steel Co.,Ltd.
- Price：Other
