Stainless Steel 347
Stainless Steel 347
Niobium-stabilized stainless steel for high-temperature piping, aerospace exhaust systems, boiler components and welded chemical-processing equipment.
Representative Properties
- Typical tensile strength: 515 MPa
- Typical yield strength: 205 MPa
- Typical density: 8.00 g/cm³
- Typical hardness: 201 HB
- Standard: ASTM A240 / ASTM A276
Values are representative for the named grade and condition. Final design and procurement must use certified supplier data and the applicable standard.
Material properties
| Material name | Stainless Steel 347 |
|---|---|
| Type | Stainless Steel |
| Standard code | ASTM A240 / ASTM A276 |
| Tensile strength (MPa) | 515 |
| Yield strength (MPa) | 205 |
| Fatigue strength (MPa) | 205 |
| Elongation (%) | 40 |
| Hardness (Brinell) | 201 |
| Density (g/cm³) | 8 |
| Electrical resistivity (µΩ·in) | 73 |
| Thermal conductivity (W/m·K) | 16.3 |
| Melting range (°C) | 1398–1446 |
| Weldability | Excellent |
| Formability | Good |
| Shear modulus | 77 |
| Industry code | ss_347 |