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Formula: Fe/Cr18/Ni 9/Ti
Form: Tube
Material: AISI 321 Stainless Steel
Commodity: Alloys
AISI 321 Stainless Steel Tube is a product within Goodfellow's range of tubes. There are 22 variations of this tube alloy available. AISI 321 stainless steel has excellent resistance to intergranular corrosion and oxidation as well as good tensile strength at high temperatures. This makes it well suited for applications requiring resistance to scaling and phase stability up to 1050°C such as in heat exchangers, furnace parts, and combustion equipment. With 22 variations, Goodfellow offers a range of sizes and finishes to meet diverse application needs.
Tolerances
Tube
| Outside Diameter | =<2mm | ±0.05mm |
|---|---|---|
| Outside Diameter | 2mm - 5mm | ±0.1mm |
| Outside Diameter | >5mm | ±5% |
| Wall Thickness | ±10% |
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 160-190 |
| Elongation at break( % ) | <60 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 560 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-73 |
| Temperature coefficient( K⁻¹ ) | - |
Thermal Properties
| Element | Value |
|---|---|
| Maximum use temperature in air( C ) | 800 |
| Melting point( C ) | 1400-1425 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 16.3@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 18@20-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 7.9 |
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Super Duplex Stainless Steel Rod Formula: Fe/Cr25/Ni 7/Mo 4
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