305 Stainless Steel
UNS 30500
Description
305 stainless steel is an austenitic chromium nickel stainless steel. Compared with 304 stainless steel, its nickel content is relatively high, and the bending of welding parts is more excellent. In addition, 305 stainless steel has good weldability, good bending performance, hardening after heat treatment, non-magnetic and other characteristics, which makes it suitable for processing and manufacturing of chemical containers, mechanical equipment components, heat-resistant equipment components, low-temperature container components.
Chemical Component
| Cr | Ni | Si | C | Mn | Mo | S | Cu | P | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 17.00-19.00% | 10.00-13.00% | 1.00% max | 0.12% max | 2.00% max | 0.75% max | 0.030% max | 0.75% max | 0.040% | Balance |
Basic Information
| Items | 305 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A009 |
| Density | 0.29 lbs/in3 7.99 g/cm3 |
| Electrical Resistivity, microhm-in (microhm-cm) | 68 °F (20 °C): 28.4 (74.0) |
| 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)- 9.6 x 10-6 (17.3); 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 x 103 (193 x 103) in tension |
| Magnetic Permeability, H= 200 Oersteds | Annealed < 1.02 |
| Melting Range, ° F (°C) | 2550-2650 (1399-1454) |
Material Forms
Alfa Chemistry offers 305 stainless steel in a variety of forms, including Strip, Coil, Foil, Wire.
Mechanical Properties
| Condition | 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. max |
- 305 stainless steel wire
| Conditions | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation | Hardness |
|---|---|---|---|---|
| 1/4 Hard | 120-135 KSI (827-930 MPa) | 100-120 KSI (589-896 MPa) | 15 % nominal | Rc 25-30 |
| Full Hard | 185-225 KSI (1275-1551 MPa) | 170-210 KSI (1172-1447 MPa) | 1-2 % | Rc 40-45 |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Cold Forming: 305 stainless steel can be readily formed and is considered a good choice for drawn parts.
Heat Treatment: 305 stainless steel is non hardenable by heat treatment.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Specifications
Strip, Coil, Foil, Wire: AMS 5514, ASTM A240, QQ-S-766
Applications
- Deep drawn parts
- Cups
- Pans
- Pens
- Eyelets
- Rivets
- Tubes
- Mixing bowls
- Coining applications
- Medical devices
- Electronic components
* 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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