5.2　Pressure Part

5.2.1　Steels for pressure part shall conform to GB 150,JB 4732 and TSG R0004.

5.2.2　The detailed rules of material selection for pressureparts shall conform to SH/T 3075.

5.2.3　Material selection for major pressure parts used in plants for processing high sulfur crude oils shall conform to SH/T 3096.