330 Stainless Steel
UNS N08330
Description
330 stainless steel is an austenitic nickel-iron-chromium alloy metled as AOD melt type. This grade is comprised of approximately 36% nickel giving it excellent high temperature oxidation resistance up to 2200 °F. The ultra high nickel content of the stainless steel also provides high resistance to chloride stress corrosion cracking and embrittlement from the precipitation of sigma phase in most furnace atmospheres. The alloy also has a low coefficient of expansion, excellent ductility and high strength. Due to these properties, this alloy is suitable for high temperature industrial environments where good resistance to the combined effects of carburization and thermal cycling are required.
Chemical Component
| Cr | Ni | Mo | Cu | Si | C | Mn | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 17.00-20.00% | 34.00-37.00% | 0.75% max | 0.50% max | 0.75-1.50% max | 0.08% max | 2.00% max | 0.030% max | 0.030% max | Balance |
Basic Information
| Items | 330 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A016 |
| Density | 0.289 lb/in3, 8.00 g/cm3 |
| Electrical Resistivity, ohm-cm | At 68 °F (20 °C): 0.000102; At 797 °F (425 °C): 0.00014 |
| Thermal Conductivity, BTU-in/hr-ft2-°F (W/m·K) | At 75 °F (24 °C): 86.8 (12.5); At 212 °F (100 °C): 113 (16.3); At 797 °F (425 °C): 135 (19.4); At 932 °F (500 °C): 150 (21.6); At 1600 °F (870° C): 198 (28.5) |
| Mean Coefficient of Thermal Expansion, µin/in-°F (µm/m-°C) | 32-212 °F (0-100 °C): 8.00 (14.4); 32-599 °F (0-315 °C): 8.89 (16.0); 32-1000 °F (0-540 °C): 9.28 (16.7); 32-1200 °F (0-650 °C): 9.61 (17.3); 32-1600 °F (0 -870 °C): 10.0 (18.0) |
| Modulus of Elasticity, ksi (MPa) | 28.6 x 103 (197 x 103) in tension |
| Magnetic Permeability, H = 200 | Annealed ≤ 1.02 max |
| Creep Strength, 1 % Flow in 1 0,000hrs | At 1000 °F: 24,000psi |
| Melting Range, °F (°C) | 2550-2597 (1400-1425) |
Material Forms
Alfa Chemistry offers 330 stainless steel in a variety of forms, including Coil, Sheet, Strip, Ribbon, Wire.
Typical Mechanical Properties
- Mechanical properties at room temperature properties: annealed typical
| Ultimate Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|
| 85 KSI min (585 MPa min) | 42 KSI min (290 MPa min) | 45% min |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Heat Treatment: Alloy 330 is non hardenable by heat treatment.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Specifications
Coil, Sheet, Strip, Ribbon, Wire: AMS 5592, AMS 5716, ASTM B 511, ASTM B 512, ASTM B 535, ASTM B 536, ASTM B 546, ASTM B 710, ASTM B 739
Applications
- Heat exchangers
- Furnace parts
- Muffles and retorts
- Annealing covers
- Food processing equipment
- Cryogenic structures
* 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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