Alloy 2304 Stainless Steel
UNS S32304
Description
Alloy 2304 is a two-phase stainless steel that contain 23% chromium, 4% nickel and no molybdenum, with a microstructure of 40%-50% ferrite and 50%-60% austenite. It has similar corrosion resistance to 316L stainless steel. In addition, its mechanical properties, i.e., yield strength, are twice that of the 304L/316L stainless steel. Alloy 2304 stainless steel also has good weldability without heat treatment, which is suitable to adopt SMAW,GTAW,GMAW and SAW method for welding. When GTAW welding is used, wire filling is required, and pure argon or Ar+2%N2 protective gas should be used. As a stainless steel with high strength and low price, Alloy 2304 can replace 304L, 316L and other commonly used austenitic stainless steel to a certain extent.
Chemical Component
| Cr | Ni | Mo | Cu | Si | C | Mn | S | N | P | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 21.50-24.50% | 2.00-5.50% | 0.05-0.60% | 0.05-0.60% | 1.00% max | 0.03% max | 2.50% max | 0.030% max | 0.05-0.20% | 0.040% max | Balance |
Basic Information
| Items | Alloy 2304 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A051 |
| Density | 0.284 lbs/in3, 7.86 g/cm3 |
| Magnetic Permeability | Ferromagnetic |
| Thermal Conductivity: BTU-in/hr-ft2-°F (W/m·K) | At 68-212 °F (20-100 °C): 9.0 (17.0) |
| Mean Coefficient of Thermal Expansion: µin/in-°F (µm/m-°C) | 32-212 °F: 6.97 x 106 (13.0) |
| Modulus of Elasticity: KSI (MPa) | 29 x 103 (200 x 103) in tension |
| Melting Range: °F (°C) | 2570-2660 °F (1410-1460 °C) |
Material Forms
Alfa Chemistry offers alloy 2304 stainless steel in a variety of forms, including Coil, Strip, Foil, Ribbon, Wire (Profile, Round, Flat, Square).
Mechanical Properties
| Conditions | Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|
| Annealed | 110 KSI min (758 MPa min) | 65 KSI min (448 MPa min) | 30% min |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Heat Treatment: Duplex Alloy 2304 cannot be hardened by heat treatment.
Specifications
Strip, Coil, Foil, Wire: ASTM A240
Applications
- Pulp and paper industry
- Caustic solutions
- Organic acids
- Food industry
- Pressure vessels
* 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.
You Want It? We Got It!
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.
Contact Us