Production characteristics of ASTM A312 304/L Stainless Steel Pipe

　　ASTM A312 Stainless steel pipe materials are: TP304, TP304L, TP304H, UNS S31002, TP310S, TP310H, UNS S31254, TP316, TP316L, TP316H, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H.

　　Specifications of stainless steel pipe outer diameter 20mm~760mm

　　The wall thickness of stainless steel pipe is 2mm~120mm

　　ASTM A312 Stainless steel pipe production methods: cold rolling, cold drawing

　　Delivery status of stainless steel pipe: heat treatment + pickling

　　After the solution annealing required in the stabilization heat treatment, grades HTP321, TP321H, TP347, TP347H, TP348 and TP348H shall be stabilized at a temperature lower than the initial solution heat treatment temperature. The stable heat treatment temperature is agreed between the buyer and seller.

　　Intergranular Corrosion Test When specified, materials shall be corrosion tested by the steelworks in accordance with Method A312. Methods: For low-carbon or slow-stabilized steel, the test must be in the locked state. Other stainless steel pipes must be tested in the same state as when installed. In order to meet this requirement, stabilizing heat treatment may be necessary and permissible in accordance with supplementary requirements for titanium-containing or grades, especially their modified steels.