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Material





Represented by ASTM A213 and ASME SA-213 specification.

Element Weight Percentage Maximum
Unless Range is Specified
  321 347
Carbon* 0.08 0.08
Manganese 2.00 2.00
Phosphorus 0.045 0.045
Sulfur 0.030 0.03
Silicon 0.75 0.75
Chromium 17.00-19.00 17.00-19.00
Nickel 9.00-12.00 9.00-13.00
Columbium +
Tantalum** 		-- 10xC min to 1.00 max
Tantalum -- --
Titanium** 5x(C+N) min to 0.70 max --
Cobalt -- --
Nitrogen 0.10 --
Iron Balance Balance
  *Also H grade with Carbon 0.04 – 0.10%.
**H grade minimum stabilizer is different formula.

Back to 321/321H

General Properties
Chemical Composition
Resistance to Corrosion
Physical Properties
Mechanical Properties
Heat Treatment
Fabrication
Elevated Temperature Oxidation Resistance
Oxidation Behavior of Type 321 Stainless Steel Tube

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