302 Stainless Steel
UNS S30200
Description
Stainless type 302 may be said to be the original 18/8 stainless steel. It is an austenitic stainless steel for safe continuous use up to 1600 °F (870 °C) and is resistant to atmospheric corrosion and a wide range of inorganic chemicals. The alloy is not hardenable by heat treatment and in non-magnetic in the annealed condition. It becomes increasingly magnetic with cold working.
Chemical Component
| C | Mn | P | S | Si | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.08-0.15% | 2.00% max | 0.040% max | 0.030% max | 1.00% max | 17.00-19.00% | 7.00-10.00% | 0.75% max | Balance |
Basic Information
| Items | 302 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A004 |
| Density | 0.29 lbs/in3, 8.03 g/cm3 |
| Electrical Resistivity, microhm-in (microhm-cm) | At 68 °F (20 °C): 28.4 (72); At 1200 °F (659 °C): 45.8 (116) |
| Specific Heat, BTU/lb/°F (kJ/kg·K) | 32-212 °F (0-100 °C): 0.12 (0.50) |
| Thermal Conductivity, BTU/hr/ft2/ft/°F (W/m·K) | At 212 °F (100 °C): 9.4 (16.2); At 932 °F (500 °C): 12.4 (21.4) |
| Mean Coefficient of Thermal Expansion, in/in/°F (μm/m·K) | 32-212 °F (0 -100 °C): 9.4 x 10-6 (16.9); 32-600 °F (0 -315 °C): 9.9 x 10-6 (17.8); 32-1000 °F (0 -538 °C): 10.2 x 10-6 (18.4); 32-1200 °F (0 -649 °C): 10.4 x 10-6 (18.7) |
| Modulus of Elasticity, KSI (MPa) | 28.0 x 103 (193 x 103) in tension 11.2 x 103 ( 78 x 103) in torsion |
| Magnetic Permeability, H= 200 Oersteds | Annealed: 1.02 max |
| Melting Range, °F (°C) | 2250-2650 (1399-1454) |
Material Forms
Alfa Chemistry offers 302 stainless steel in a variety of forms, including Wire, Strip, Foil.
Mechanical Properties
| Conditions | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation | Hardness | |
|---|---|---|---|---|---|
| Annealed | 75 KSI min (515 MPa min) | 30 KSI min (205 MPa min) | 40% Min | B92 or Equiv. | |
| Tempered | 1/4 Hard | 125-150 KSI (861-1034 MPa) | 100-130 KSI (589-896 MPa) | 20% nominal | Rc 25-30 |
| Full Hard | 185-225 KSI (1275-1551 MPa) | 170-210 KSI (1172-1447 MPa) | 1-4 % | Rc 40-45 | |
Specifications
Wire: AMS 5515, AMS 5516, AMS 5903 (1/4 Hard), AMS 5906 (full hard)
Strip and Foil: AMS 5515 & AMS 5516 (Annealed), AMS 5903 (1/4 Hard), AMS 5904 (1/2 Hard), AMS 5905 (3/4 Hard), AMS 5906 (Full Hard)
Applications
- Various screening applications
- Springs
- Wire forms
- Fasteners
- Contacts
- Washers
- Clamps
- Electrical connectors
- Clips
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We stock a wide variety of alloys in different shapes and specifications. If you can't find the product or specification you need, please contact us directly.
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