AL-6XN
AL-6XN is a typical 6-molybdenum (high molybdenum content 6.3%) super austenitic stainless steel. Resistant to chloride pitting, crevice corrosion and stress corrosionThe ability is better than 3 series stainless steel and the cost is lower than corrosion-resistant nickel-based alloy. Shows good anti-corrosion properties in various severe corrosive environments It is suitable for high chloride aqueous solutions and chloride corrosive environments. Its comprehensive corrosion resistance has greatly improved compared to 316L.
For other corrosion-resistant nickel-based alloys such as C-276, the corrosion resistance is similar, but the cost is more advantageous. Used in various high chloride environments: bleaching Chemicals with high content of whitening agents (sodium hypochlorite, chlorine dioxide), halogens and salt or seawater.
Content
Chemical composition of AL-6XN(%)
| Element | Minimun % | Maximum % |
|---|---|---|
| C | ― | 0.03 |
| Si | ― | 1 |
| Mn | ― | 2 |
| P | ― | 0.04 |
| S | ― | 0.03 |
| Ni | 23.5 | 25.5 |
| Cr | 20 | 22 |
| Mo | 6 | 7 |
| Cu | ― | 0.75 |
| N | 0.18 | 0.25 |
Physical properties of AL-6XN
| Specific heat capacity (J/kg-K) | 450 |
|---|---|
| Resistivity(μΩ-cm) | 94.4 |
| Thermal Conductivity (W/m-K) | |
| 20℃ | 11.9 |
| 100℃ | 13 |
| Average coefficient of thermal expansion (10-6/℃) | |
| 20–200℃ | 15.3 |
| 20–300℃ | 15.6 |
| 20–400℃ | 15.9 |
| 20–500℃ | 16.2 |
| Longitudinal modulus of elasticity (MPa) | 19.8 x 104 |
| Density g/cm3 | 8.24 |
| Melting point(℃) | 1360-1394 |
Applications of AL-6XN
1) Seawater environment: seawater desalination device, seawater heat exchanger, Condenser tubes etc.
2) High-concentration chloride ion environment: flue gas desulfurization equipment, pulp manufacturing Paper industry, various bleaching devices, etc.
3) Environment containing high concentration of salt: resin manufacturing equipment, chemicals Product reaction vessels and piping, etc.
4) Storage tanks and pressure rollers, smoke from thermal power plants, steel plants, and petrochemical companies Gas desulfurization equipment (FGD), crude oil distillation tower and packing,
5) Pharmaceutical equipment, food machinery and equipment
