254SMO super austenitic steel
In recent years, the development trend of stainless steel welded pipes has been relatively good. Regardless of the scale, quality, and production technology, there have been relatively large advances, and in particular its demand areas have also gradually expanded. In addition, as the stainless stee
PRODUCT INTRODUCTION
254SMO stainless steel is a kind of super austenitic stainless steel with high corrosion resistance. It is developed for halide and acid environment. It is widely used in harsh working conditions such as high concentration chloride ion medium and seawater. In various industrial occasions of acidic medium, especially in the acid containing halide, 254SMO is far superior to other stainless steels, and can be comparable to Hastelloy and titanium in some cases.
Chemical composition of 254SMO super austenitic stainless steel：
| % | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| Min | ≤0.02 | ≤0.8 | ≤1.0 | ≤0.03 | ≤0.01 | 19.5 | 17.5 | 6 | 0.18 | 0.5 |
| Max | - | - | - | - | - | 20.5 | 18.5 | 6.5 | 0.22 | 1 |
Physical properties of 254SMO super austenitic stainless steel
| Melting point / ℃ | Heat capacity ratio | Thermal conductivity | Linear expansion coefficient | Resistivity | Longitudinal modulus of elasticity |
| /kg/(kg.k)℃ | 100℃ | /(10-6/k) | / (Ω.mm2/m) | /GPa | |
| 0-100℃ | 100℃ | 20℃ | 20℃ | ||
| 1325~1400 | 0.5 | 13.5 | 16.5 | 0.85 | 200 |
| Density g / cm | Hardness HBW | Hardness HBW | magnetic | ||
| 8 | nothing |
Application field of 254SMO super austenitic stainless steel：
● Ocean: marine structure of sea environment, seawater desalination, mariculture, seawater heat exchange, etc.
● environmental protection: flue gas desulfurization device for thermal power generation, wastewater treatment, etc.
● energy field: atomic power generation, comprehensive utilization of coal, tidal power generation, etc.
● petrochemical industry: oil refining, chemical equipment, etc.
● food field: salt making, soy sauce brewing, etc.
● high concentration chloride environment: paper industry, various bleaching devices.