321 Stainless Steel is an austenitic stainless steel that is stabilized with titanium. 321 also contains chromium as well as nickel and in addition to the titanium, provides improved inter-granular corrosion resistance. 321 in non-magnetic w/similar corrosion resistance to type 304. This material is used for welded equipment that can’t be annealed. In addition, it’s used for equipment that is operated between 800 and 1500°F. 321 is available in round bar, plate, pipe, sheet, tubing, coil and pipe. For any 321 stainless steel needs please call Michlin Metals. For more info on this as well as other Austenitic Stainless Steels check out a video on just that topic below: 321 stainless steel seamless steel tubes (GB3087-1999) are high quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes, which are used for manufacturing superheated steam pipes, boiling water pipes of various low and medium pressure boilers and superheated steam pipes, big smoke pipes, small smoke pipes and arch brick pipes of locomotive boilers. 321 stainless steel tube: Mainly used in the manufacture of high pressure and over pressure steam boiler pipes, etc. With high quality carbon structural steel, alloy steel and stainless heat resistant steel seamless steel tube, the boiler tube by the party under high temperature and high pressure pipe and works in high temperature flue gas and steam will happen under the action of oxidation and corrosion, so the steel pipe with high rupture strength, high oxidation resistance, And has good organization stability, hydraulic prop tube. 321 stainless steel tubes are delivered in heat treatment condition. In addition, the microstructure, grain size and decarburization layer of finished steel tubes are also required. Seamless steel pipes for geological drilling and petroleum drilling control; In order to explore the underground rock structure, groundwater, oil, natural gas and mineral resources, the use of drilling Wells.

Property	Value
Density	.286 lb/inch³
Elongation	40%
Hardness Max, Brinell	217
Ultimate Tensile Strength	75 ksi

Element	Min	Max
C	-	0.08
Cr	17	19
Fe	-	Balance
Mn	-	2
N	-	0.1
Ni	9	12
P	-	0.045
S	-	0.03
Si	-	0.75
Ti	-	0.7