No.1 / No.4 / BA / 2B/HL/mirror/polished/brushed(bright annealed,surface not oxidati
Showing the splendor of your quality, wearresistant as well ,strong corrosion resistance
and decorative effect, durable and beautiful in good taste.
About 321 stainless steel
These titanium bearing stainless steels are stabilized against carbide precipitation and designed for eperation within the damaging temperature range where carbide precipitation develops. In this type of steel, the carbon combines preferentially with titanium to form a harmless titanium carbide, leaving the chromium in solution ot maintain full corrosion resistance. Type 321 is basic type 304 modified by adding titanium in an amount at least 5 times the carbon plus nitrogen contents.
Chemical composition of 321 stainless steel
Features of 321 stainless steel
Immune to intergranular corrosion when heated within the carbide precipitation range.
Titanium addition eliminates the formation of chromium carbides at the grain boundaries by tying up the carbon and nitrogen as titanium carbides or nitrides.
Better high temperature properties than 304 or 304L. Generally used for parts which are intermittently heated up to 1500°F. For continuous service the alloy is good to 1650°F.
May be susceptible to chloride stress cracking.
Excellent weldability in field.
Type 321H has high carbon (.04 to .10) for better high temperature creep properties
Stainless steels of various kinds are used in thousands of applications. The following gives a flavour of the full range:
Aircraft exhaust manifolds
Heating element tubing
Woven or welded screens for high temperature mineral processing