Stainless Steel 302 is stocked by 74 North American distributors and produced by 52 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 44 distributors but is also available to a lesser extent in Wire Products, Bar Products, Tubular Products, Casting Products, and Forging Products.
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Specifications
The following specifications cover Stainless Steel 302
- AISI 302
- AMS 5515
- AMS 5516
- AMS 5788
- ASTM A167
- ASTM A240
- ASTM A276
- ASTM A313
- ASTM A314
- ASTM A368
- ASTM A473
- ASTM A478
- ASTM A479
- ASTM A492
- ASTM A493
- ASTM A511
- ASTM A554
- ASTM A580
- ASTM A666
- DIN 1.4319
- MIL S-7720
- QQ S763
- QQ S766
- UNS S30200
Property Results
Related Metals:
Chemistry Data : [top]
Carbon
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0.15 max |
Chromium
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17 - 19 |
Iron
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Balance |
Manganese
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2 max |
Nickel
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8 - 10 |
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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Type 302 is a slightly higher carbon version of type 304, most commonly found in strip and wire forms. While still used in a variety of industries, many applications have shifted to 304 and 304L due to advances in melting technology, availability and cost.
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Applications
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Primarily used in the stamping, spinning and wire forming industry. This alloy is formed into all types of washers, springs, screens and cables.
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Machinability
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Slow speeds and high feeds will overcome this alloys tendency to work harden. Due to gummy chips, it is recommended that chip breakers are used on all tooling.
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Welding
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This alloy can best be welded by resistance or shielded fusion methods. Filler metals should be AWS E/ER308 or 312. Post weld annealing dissolves the chromium carbide and is recommended for maximum resistance to intergranular attack.
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Forging
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Commence forging at 2100-2300 F(1149-1260 C). Do not forge below 1700 F(927 C).
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Hot Working
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Uniform heating to 2100 F(1149 C) will allow this allow to be forged, upset and headed successfully. Do not work 302 below 1700 F (927 C). Forgings should be fully annealed after all operations to reattain maximum corrosion resistance.
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Cold Working
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Cold working will dramatically increase the hardness of this material, however it is quite ductile and may readily be drawn, spun and upset. Any cold work will cause this alloy to become magnetic. Post-fabrication annealing is necessary to reattain maximum corrosion resistance and a non-magnetic condition.
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Annealing
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1850-2050 F (1010-1121 C) with cooling at a rapid rate to avoid the precipitation of chromium carbides.
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Hardening
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This alloy does not respond to heat treatment.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.287
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Specific Gravity
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7.94
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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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432
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Melting Point (Deg F)
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2590
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Modulus of Elasticity Tension
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28
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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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