321 Stainless Steel Tube is a seamless steel pipe made from 321 stainless steel (also known as 1Cr18Ni9Ti or SUS321), manufactured in compliance with standards such as ASME A312. It is primarily used in chemical equipment, oil drilling, high-temperature furnace chambers, aerospace, and other demanding applications.
The addition of titanium enhances its resistance to intergranular corrosion, while maintaining stable performance in high-temperature environments ranging from 427°C to 816°C. This makes it suitable for use in strong acids and alkalis.
The production process includes hot rolling, cold drawing, and heat treatment, followed by rigorous testing such as hydrostatic pressure, flaring, and microstructure examination.
Specification
Size : OD: 1/2"-2000mm WT: 0.59-40mm, Length: 0.5mtr-20mtr
Standard & Grade : ASTM A312,ASME SA312/SA312M Grade 304, 304L, 310S, 316, 316L, 321, 347, 410, 904L, 347H, 316Ti, 317, 317L,
ASTM A312 Gr. 321 Stainless Steel SMLS Pipes, ASTM A358 TP321 Stainless steel EFW pipes /smls Pipes & Tubes, ASTM A358 /A249/ A269/ ASME SA312 TP 321 Stainless steel tubes and Pipes in Welded;
Tubing End: Bevel end, Plain end; Threaded;
Chemical Composition of ASME SA312 321 Steel tube / ASTM A312 321 Stainless Steel tubes:
Mechanical Properties of ASME SA312 321 Steel tube / ASTM A312 321 Stainless Steel tubes:
Grade Specifications of ASME SA312 321 Steel tube / ASTM A312 321 Stainless Steel tubes:
