XM-19
XM-19 is the first steel in the development of high-wire ferritic stainless steel. Low brittle transition temperature, resistant to halide ion stress corrosion, good destructiveness, corrosion resistance Its properties are equivalent to those of pure nickel, and it has good toughness, processability and weldability.
Content
Chemical composition of XM-19(%)
| Element | Minimun % | Maximum % |
|---|---|---|
| Ni | 11.5 | 13.5 |
| Cr | 20.5 | 23.5 |
| Fe | 52 | 62 |
| C | - | 0.06 |
| Mn | 4 | 6 |
| Si | - | 1 |
| N | 0.2 | 0.4 |
| Mo | 1.5 | 3 |
| Nb | 0.1 | 0.3 |
| V | 0.1 | 0.3 |
| P | - | 0.04 |
| S | - | 0.03 |
Physical properties of XM-19
| Density | 7.8g/cm3 |
|---|---|
| Melting point(℃) | 1415-1450 |
| Tensile Strength RmN/mm2 | 690 |
| Yield Strength RP0.2 N/mm2 | 380 |
| Elongation A5 % | 35 |
| Hardness HB | ≤241 |
Applications of XM-19
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
