303Se Stainless Steel
UNS S30323
Description
303Se is an austenitic stainless steel melted as AOD melt type and offers excellent machinability. This grade is a modified version of 303 with a selenium addition in place of sulfur which allows for excellent machinability. This grade is used often in general industry where cold forming is required after machining and can be used for higher temperature fastener, nozzle, and valve parts.
Chemical Component
| C | Mn | P | Se | Si | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|
| 0.12% max | 2.00% max | 0.120-0.170% | 0.15-0.35% | 1.00% max | 17.00-19.00% | 8.00-10.00% | Balance |
Basic Information
| Items | 303Se Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A007 |
| Density | 0.283 lb/in3 , 8.00 g/cm3 |
| Electrical Resistivity, ohm-cir-mil/ft | At 70 °F: 433.0 |
| Specific Heat, BTU/lb-°F (J/g-°C) | 32-212 °F (0-100 °C): 0.12(0.5) |
| Thermal Conductivity, BTU-in/hr-ft2-°F (W/m·K) | At 212 °F (100 °C): 112 (16.20) |
| Mean Coefficient of Thermal Expansion, µin/in-°F (µm/m-°C) | 68-392 °F (20-200 °C): 9.3 (16.7) |
| Modulus of Elasticity, KSI (MPa) | 28 x 103 (193 x 103) in tension |
| Melting Range, °F (°C) | 2550-2590 (1400-1420) |
Material Forms
Alfa Chemistry offers 303Se stainless steel in a variety of forms, including Wire, Strip, Plate, Sheet.
Mechanical Properties
| Conditions | Ultimate Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|
| Annealed | 75 KSI min (517 MPa min) | 25 KSI min (172MPa min) | 35% min |
Specifications
Wire: AMS 5640, AMS 5641, ASTM A582, QQ-S-764
Applications
- Medical Instruments
- Shafts
- Valves
- Fittings
- Intricate parts that can only be made by machining.
* 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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