321 Stainless Aerospace Tubing

321 stainless aerospace tubing is made from an austenitic stainless steel offering an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel is resistant to chromium carbide formation due to the addition of titanium.

Stock Size Range:

OD:
.062"- 6.5"
Wall:
.006" - .120"

Tempers: Annealed

Specifications: MI-L-T 8808, MIL-T-8606, AMS 5557, AMS 5570

Typical Chemical Composition %
Weight %NiCrMnCSiSP
Minimum 9.00 17.00          
Maximum 12.00 19.00 2.00 .080 1.00 .030 .045
Typical Mechanical Properties
Nominal ODNominal WallUltimate KSIYield KSIElongation
         
.188 and less .016 and less 75-120 max   35%
    75-105 max 30 min  
  Over .016     35%
         
Over .188 .010 and 75-115 max 30 min 35%
Thru .500 Less      
incl Over .010 75-105 max   35%
         
Over .500 All 75-100 max 30 min 35%

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