ASTM A213 TP321 Seamless Stainless Steel Tube

We manufacture ASTM A213 TP321 seamless stainless steel tube, seamless tubes finished both annealing pickling and pickling finishes, there are large range tube sizes and dimensions to be offered, size toleranace should be tight and exact, wall thickness tolerance is plus tolerance in minimum thickness unless average wall thickness required.

ASTM A213 TP321 seamless tube is made from stainless steel billet, after cold drawn and cold rolling, heat treatment should be made in specific temperate, finished seamless tubes are mainly applied for boiler, heat exchanger, super heater system.

Basic specification
  • Type: seamless tubes
  • Stainless steel: TP321
  • Finishes Surface: Annealing pickling, bright annealing
  • Outside diameter: 1/8″ – 5″
  • Thickness: 0.4 – 6 mm
  • Length: fixed length or random length
  • Ends: Plain ends, Bevelled ends
  • Application: Heat exchanger, water, oil and gas, food, chemical, mechanical purpose

ASTM A213 TP321 stainless steel

TP321 stainless steel is CR-NI-TI an Austenitic steel, it has excellent high temperature stress property and mechanical property, its properties is similar with stainless steel 304, but 321 is better than 304 in many aspects, addition of Ti element improve intergranular corrosion resistance and high temperate resistance, 321 stainless steel has good performance in Stress Rupture and Creep Resistance.

TP321 stainless steel chemical composition(%), Max

C Si Mn P S Cr Ni Ti N Bal
321 0.08 1.00 2.00 0.045 0.030 17.0/19.0 9.0/12.0 5 x C min – 0.70 max 0.10 Iron

TP321 stainless steel mechanical property

Tensile strength(Mpa) Yield point(Mpa) Elongation(%) Hardness(HRB)
321 520 205 40 90

Other A213 grades seamless stainless steel tube

ASTM A213 TP321 stainless steel grade possess excellent corrosion resistance, TP321 seamless tube are used in wide applications, especially in corrosion environments。

A213 TP321 Seamless Stainless Steel TubeSA213 321 stainless steel seamless tubes