Stainless Steel 309S is stocked by 27 North American distributors and produced by 23 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Flat Rolled Products by 18 distributors but is also available to a lesser extent in Tubular Products, Wire Products, Bar Products, Forging Products, and Piping Components.
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Specifications
The following specifications cover Stainless Steel 309S
- AISI 309S
- AMS 5523
- AMS 5574
- AMS 5650
- ASTM A167
- ASTM A213
- ASTM A240
- ASTM A249
- ASTM A276
- ASTM A312
- ASTM A314
- ASTM A473
- ASTM A479
- ASTM A511
- ASTM A554
- ASTM A580
- ASTM A813
- ASTM A814
- DIN 1.4833
- UNS S30908
Property Results
Chemistry Data : [top]
Carbon
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0.08 max |
Chromium
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22 - 24 |
Iron
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Balance |
Manganese
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2 max |
Nickel
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12 - 15 |
Phosphorus
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0.045 max |
Silicon
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1 max |
Sulphur
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0.03 max |
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Principal Design Features
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Basically a controlled carbon version of type 309 stainless designed to improve the weld strength of the alloy while benefiting from the alloy's high resistance to heat and corrosion. Superior corrosion resistance to 309 in the range of 800-1500 F (427-816 C).
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Applications
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Oven linings, boiler baffles, fire box sheets, furnace components and other high temperature containers.
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Machinability
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This alloy machines similarly to type 304 stainless. Its chips are stringy and it will work harden rapidly. It is necessary to keep the tool cutting at all times and use chip breakers.
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Welding
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Most of the austenitic stainless steels can be readily welded using fusion or resistance methods. Oxyacetylene welding is not recommended. Filler metal should be AWS E/ER 309L.
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Hot Working
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Working temperatures are 2150 F (1177 C), with reheating necessary at 1800 F (982 C). Rapid quenching is recommended. Full post-work annealing is required to reattain maximum corrosion resistance.
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Cold Working
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Although this alloy has a high work hardening rate, it can be drawn, headed, upset, and stamped. Full annealing is required after cold work to remove internal stress.
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Annealing
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1900-2050 F (1038-1121 C), water quench.
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Hardening
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This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.29
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Specific Gravity
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7.9
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.12
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Electrical Resistivity (microhm-cm (at 68 Deg F))
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468
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Melting Point (Deg F)
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2650
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Modulus of Elasticity Tension
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29
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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