Hastelloy B-3
Hastelloy B-3 (N10675) is a nickel-based high-temperature alloy composed of nickel, molybdenum, cobalt and other elements, with a nickel content of about 65%. Hastelloy B3 (N10675) nickel-based alloy material is a new material improved on the basis of Hastelloy B2, which improves the thermal stability of the material, thereby improving the corrosion resistance, and at the same time, improves the hot forming and cold forming properties. In recent years, it has been increasingly used in the production and manufacturing of chemical equipment.
Content
Chemical composition of Hastelloy B-3(%)
| Element | Minimum(%) | Maximum(%) |
|---|---|---|
| Ni | ≥65 | - |
| Mo | 27 | 32 |
| Cr | 1 | 3 |
| Fe | 1 | 3 |
| W | - | 3 |
| Co | - | 3 |
| C | - | 0.01 |
| Mn | - | 3 |
| Si | - | 0.1 |
| V | - | 0.2 |
| P | - | 0.03 |
| S | - | 0.1 |
| Cu | - | 0.2 |
| Al | - | 0.5 |
| Ti | - | 0.2 |
| Nb | - | 0.2 |
| Ta | - | 0.02 |
| Zr | - | 0.1 |
| Ni+Mo | - | 98 |
Physical properties of Hastelloy B-3
| Property | Value |
|---|---|
| Density | 9.24 g/cm3 |
| Melting range | 1370-1418℃ |
Mechanical properties of Hastelloy B-3 alloy
| Property | Value |
|---|---|
| Tensile Strength | 760 MPa (115 ksi) |
| Yield Strength (0.2% Offset) | 350 MPa (51.5 ksi) |
| Elongation | 40% |
Applications of Hastelloy B-3
It is widely used in the fields of chemistry, petrochemicals, energy manufacturing and pollution control, especially in the sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries. However, like B-2 alloy, B-3 is not recommended for use in environments where trivalent iron salts and divalent copper salts exist, because these salts will quickly cause corrosion damage. When hydrochloric acid comes into contact with iron and copper, it will react with them to form trivalent iron salts and divalent copper salts.
