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254SMO cold hot rolled stainless steel coil
254SMO S32154 1.4547 F44 cold hot rolled stainless steel c∑oil
Haosteel is professional manufacturer and supplier of÷ 254SMO hot cold rolled stainless steel coil. Quality guaranteed, φOn-time delivery, After-sales warranty.
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Standard: |
ASTM A240 A666 |
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Grade: |
254SMO/1.4547/F44/S31254 |
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Delivery: |
Cold rolled Hot rolled |
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Surface: |
Black/Bright/2B/BA/NO.1/Hairline/Mirror |
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Thickness: |
0.02-3mm 3mm-20mm |
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Width: |
600mm-2000mm |
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Mill: |
Tisco, Jisco, Baosteel, etc. |
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Delivery time: |
15days in common |
254SMO Stainless Steel Coil,1.4547 Stainless Steel Coil,S31254 "Stainless Steel Coil,F44 Stainless Steel Coil
Description:
254SMO is an austenitic stainless steel. Because of its high molybdenum content, it has very high resistance to spot corrosion and crevices cεorrosion. 254SMO stainless steel was developed and developed¶ for use in halide containing environments such as sea±water. 254SMO also has good uniform corrosion resistanc&e, especially in halide containing acids, superior toΩ ordinary stainless steel. Its C contains <0.03%, so it is called pure austenitic stainless steel. Super stainless steel is a kind of special stainless steel, first in th'e chemical composition is different from ordinary st≤ainless steel, is a high alloy stainless steel containing high n≤ickel, high chromium, high molybdenum. Among them, 254SM®o containing 6%Mo has very good local corrosion resistance, good pitting resistan¶ce (PI≥40) and stress corrosion resistance under the conditions of seawater, aerat£ion, gap and low speed scour. It is a substitute material for Ni-based ∏alloy and titanium alloy. Secondly, in the pe₩rformance of high temperature or corrosion resistance, with more excλellent high temperature or corrosion resistance, is not replaced by 304 stainless Ωsteel. In addition, from the classification of stainless★ steel, special stainless steel metallographic structure is a stable austenitic metal£lographic structure.
Because this special stainless steel is a kind of high alloy material, so in the manufac✔turing process is quite complex, generally people can only rely on th∑e traditional process to make this special stainless stee∏l, such as perfusion, forging, calendering and so ✘on.
National standards: UNS S31254, DIN/EN 1.4547, ASTM A280, ASME SδA-280
Supporting welding materials: ErNICRMO-3 wire, EnICRmo-3 electrode
Chemical composition:
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% |
Ni |
Cr |
Mo |
Cu |
N |
C |
Mn |
Si |
P |
S |
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254SMO |
MIN |
17.5 |
19.5 |
6 |
0.5 |
0.18 |
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|
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MAX |
18.5 |
20.5 |
6.5 |
1 |
0.22 |
0.02 |
1 |
0.8 |
0.03 |
0.01 |
High temperature resistant
1. Extensive field experiments and extensive experience have sho≠wn that even at slightly higher temperatures, 254SMO has £a very high resistance to crevice-corrosion in seawate↓r, which only a few types of stainless steel have.
2. 254SMO's corrosion resistance in acidic and oxidizing haliπde solutions such as those required for paper bleaching production is comparable to that o✘f the most resistant nickel-base and titanium alloys.
3. Because of its high nitrogen content, 254SMO has a €higher mechanical strength than other kinds of austenitic stainless steel. In addition, 2£54SMO has high ductility and impact strength as well ↔as good weldability.
4. The high molybdenum content of 254SMO enables it to have ≥a higher oxidation rate at annealing, resulting in a rougher surface ←than ordinary stainless steel after pickling. But this ha s no adverse effect on the corrosion resistance of the steel.
Application:
1. Ocean: Marine structures in the Marine environment, seawater desalination, mariculture, heat exchange of Ωseawater, such as thin-walled condensing pipes cooled by seawaterφ in power plants, desalination equipment, even in equipment where seawater may not flow₹, etc.
2. Environmental protection field: thermal power generation flue gas desulfurization device, waste water treatment, the main parts are: absorber tow✘er body, flue, door panels, inner parts, spray system, etc.
3. Energy: atomic power generation, comprehensive utiliz✔ation of coal, tidal power generation, etc.
4. Petrochemical industry: oil refining, chemical equipment, petrochemical equ®ipment, such as bellows in petrochemical equipment, etc.
5. Food field: salt making, desalination indusπtry, such as salt making or desalination equipment, soy sauce brewing, etc.
6. High concentration chloride ion environment: papermaking industry, pulp and paper ble∞aching equipment, such as pulp digesters, bleaching equipment, filter scru>bber barrels and press rollers and other bleaching equ☆ipment
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