309 Stainless Steel

309 Stainless Steel

Shapes Available

  • Pipe
  • Round Bar
  • Sheet

Industries

  • Aerospace
  • Manufacturing

Industry Names

  • 309 Stainless
  • 309

Material

  • Stainless Steel

Specifications

  • AMS 5523
  • UNS S30908
  • UNS S30909

Applications

  • Anchor Bolts
  • Annealing Boxes
  • Glass Forming Equipment
  • Radiant Tubes for Aluminum and Steel Annealing
  • Thermowells Paper Mill Equipment
  • Waste Incinerators

Features

  • Ease of Fabrication
  • Good Sulfidation Resistance
  • Good Weldability
  • Moderate Strength at High Temperature
  • Oxidation Resistant to 1900°F

309 stainless steel is an austenitic stainless steel that machines comparably to 304. However, 309 has superior corrosion resistance and strength. Cold working 309 will increase both strength and hardness and this stainless steel does not respond to heat treating.

309 comes in the following shapes: round bar, sheet and pipe.


Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Metal Properties
PropertyValue
Melting Range 2500-2590 °F
.2% Yield Strength 45 ksi
Density 0.285 lb/inch³
Elongation 50 %
Ultimate Tensile Strength 90 ksi
Chemical Composition
ElementMinMax
C- .08
Cr22.0 24.0
Fe- Bal
Mn- 2.0
Ni12.0 15.0
P- .045
S- .03
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