434 Stainless Steel
UNS S43400
Description
434 stainless steel is one of the most widely used of the "non-hardenable" ferritic stainless steels, and is one of the most corrosion-resistant alloys available. This type of stainless steel has excellent tensile strength and creep strength as well as good ductility. It also offers good heat resistance and superior resistance when compared with other types of metals. It has been tested extensively in different environments, including saltwater and humid air, and has demonstrated an ability to resist corrosion even under these conditions. This makes it an ideal choice for any application where corrosion could be a concern.
Chemical Component
| Cr | Ni | Si | C | Mn | Mo | S | P | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 16.00-18.00% | 0.50% max | 0.60% max | 0.08% max | 1.00% max | 0.75-1.25% | 0.030% max | 0.040% max | 0.50% max | Balance |
Basic Information
| Items | 434 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A023 |
| Density | 0.28 lb/in3, 7.74 g/cm3 |
| Electrical Resistivity, microhm-in (microhm-cm) | 68 °F (20 °C): 23.68 (60) |
| Specific Heat, BTU/lbl °F (kJ/kg·K) | 32-212 °F (0-100 °C): 0.11 (0.46) |
| Thermal Conductivity, BTU/hr/ft2/ft/°F (W/m·K) | At 212 °F (100 °C): 15.1 (26.1); At 932 °F (500 °C): 15.2 (26.3) |
| Mean Coefficient of Thermal Expansion, in/in/°F (µm/m·K) | 32-212 °F (0-100 °C): 5.8 x 10-6 (10.4); 32-1000 °F (0-538 °C): 6.3 x 10-6 (11.4) |
| Modulus of Elasticity, ksi (MPa) | 29 x 103 (200 x 103) in tension |
| Magnetic Permeability | Magnetic |
| Melting Range | 2700 -2790 °F (1482-1532 °C) |
Material Forms
Alfa Chemistry offers 434 stainless steel in a variety of forms, including Coil, Strip, Foil, Ribbon, Wire.
Mechanical Properties
- Mechanical properties at room temperature properties: annealed typical
| Ultimate Tensile Strength | Yield Strength (0.2% Offset) | Elongation | Hardness |
|---|---|---|---|
| 65 KSI min (450 MPa min) | 30 KSI min (205 MPa min) | 22% min | Rb 89 max |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Heat Treatment: 434 stainless steel can not be hardened by heat treatment.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Specifications
Coil, Strip, Foil, Ribbon, Wire: AMS 5503, ASTM A240
Applications
- Architectural
- Automotive trim and molding
- Furnace combustion chambers
- Dishwashers
- Range hoods
- Gas burners on heating units
- Gutters and down spouts
- Steam iron bases and flatware
- Nitric acid plant equipment
- Oil refinery equipment
- Roofing and siding and restaurant equipment
* 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