317 Stainless Steel
UNS S31700
Description
317 stainless steel is an austenitic chromium-nickel alloy containing molybdenum, which is a modified version of 316 stainless steel. It has a higher nickel content than 316 stainless steel, which helps to increase its corrosion resistance, making it ideal for applications in harsh environments. And its high molybdenum content enhances the grade's superior pitting resistance. In addition, it has excellent toughness and ductility properties, making it suitable for use in many applications that require high strength and durability.
Chemical Component
| Cr | Ni | Mo | Si | C | Mn | S | P | N |
|---|---|---|---|---|---|---|---|---|
| 18.00-20.00% | 11.00-15.00% | 3.00-4.00% | 0.75% max | 0.08% max | 2.00% max | 0.030% max | 0.045% max | 0.10% max |
Basic Information
| Items | 317 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A013 |
| Density | 0.29 lb/in3, 7.99 g/cm3 |
| Electrical Resistivity, microhm-in (microhm-cm) | 68 °F (20 °C): 29.4 (74.0) |
| Specific Heat, BTU/lbl °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/inl°F (µm/m·K) | 32-212 °F (0-100 °C): 8.9 x 10-6 (16.0); 32-600 °F (0-315 °C): 9.0 x 10-6 (16.2); 32-1000 °F (0-538 °C): 10.3 x 10-6 (18.5); 32-1500 °F (0-871 °C): 11.1 x 10-6 (18.5) |
| Modulus of Elasticity, ksi (MPa) | 28 x 103 (193 x 103) in tension; 11.2 x 103 (77 x 103) in torsion |
| Magnetic Permeability, H=200 | Annealed < 1.02 max |
| Melting Range, °F (°C) | 2500-2590 (1371-1421) |
Material Forms
Alfa Chemistry offers 317 stainless steel in a variety of forms, including Coil, Sheet, Strip, Ribbon, Wire.
Mechanical Properties
- Mechanical properties at room temperature properties: annealed typical
| Ultimate Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|
| 75 KSI min (517 MPa min) | 30 KSI min (205 MPa min) | 35% min | Rb 95 max |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Cold Forming: Type 317 can be readily formed and drawn.
Heat Treatment: Type 317 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 5507, ASTM A666
Applications
- Chemical processing
- Food processing
- Oil refineries
- Pulp and paper applications
- Gas scrubbers
- Photographic handling
- Marine applications
- Seals and other components for the oil and gas industry
* 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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