254SMO has a face-centered cubic lattice structure. To obtain an austenitic structure, 254SMO is generally annealed at a temperature of 1150-1200 degrees Celsius. In some cases, there may be metallic intermediate phases (χ phase and
α phase) traces. But in general, they have no adverse effects on impact strength and corrosion resistance. These phases may precipitate at grain boundaries when placed in the range of 600-1000 degrees Celsius.
Specifications | In stock, can be customized according to customer requirements |
Form | Plate,Strip,Bar,Pipe |
Classification | Super austenitic |
GB/T | UNS | AISI/ASTM | ID | W.Nr |
015Cr20Ni18Mo6CuN | S31254 | 254SMo | F44 | 1.4547 |
Grade |
| Ni | Cr | Mo | Cu | N | C | Mn | Si | P | S |
254SMO | Min | 17.5 | 19.5 | 6 | 0.5 | 0.18 | - | - | - | - | - |
max | 18.5 | 20.5 | 6.5 | 1 | 0.22 | 0.02 | 1 | 0.8 | 0.03 | 0.01 |
Grades | Alloy state | Density | Melting point | Tensile strength | Yield strength | Elongation |
254SMO | Solidification treatment | 8.0 g/cm3 | 1320-1390 ℃ | 650Rm N/mm2 | 300RP0.2N/mm2 | 25％ |
254SMOalloy is a versatile material that can be used in many industrial fields:
1. Petroleum and petrochemical equipment, such as bellows in petrochemical equipment.
2. Pulp and paper bleaching equipment, such as pulp digesters, bleaching equipment, barrels and pressure rollers for filter washers, etc.
3. The main parts used in power plant flue gas desulfurization equipment are: the tower body of the absorption tower, the flue, the baffle plate, the internal parts, the spray system, etc.
4. Offshore systems or seawater treatment, such as thin-walled condensation pipes cooled by seawater in power plants, seawater desalination equipment, and can be applied even in equipment where seawater may not flow.
5. Desalination industry, such as salt production or desalination equipment.
6. Heat exchangers, especially heat exchangers in working environments with chloride ions.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
Machine cutting
Sheet cutting
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Plank leveling
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Bar and structural cutting
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Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
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