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254SMO Stainless Steel Round Bar
254SMO 1.4547 S31254 F44 Stainless Steel Round Bar
Haosteel is professional manufacturer and supplier of 254SMO Stainless Steel Round Bar ↕;. Quality guaranteed, On-time delivery, After-sales warranty.
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Standard: |
ASTM A276/A484/A582 |
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Grade: |
254SMO/1.4547/F44/S31254 |
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Delivery: |
Hot rolled, Cold drawn |
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Surface: |
Pickled,Black,Bright,Polishing,Grinded |
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Diameter: |
1mm-300mm |
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Length: |
2m-12m as customer request |
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round bar: |
Hot rolled black bar/Acid round barCold drawn brig♦ht bar/Polishing round bar |
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Mill: |
Tisco, Jisco, Baosteel, etc. |
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Delivery time: |
15 days in common |
254SMO Stainless Steel Bar,1.4547 Stainless Steel Bar,S31254 Stai¥nless Steel Bar,F44 Stainless Steel Bar
Description:
254SMO is an austenitic stainless steel. Because of its high molybdenum cont§ent, it has very high resistance to spot corrosion and crevices corrosion. ∏;254SMO stainless steel was developed and developed for use in halαide containing environments such as seawater. 254SMO also has$ good uniform corrosion resistance, especially in halide containing acids, su↕perior to ordinary stainless steel. Its C contains <0.03%, so it is called pure au stenitic stainless steel. Super stainless steel is a kind of special stainless s§teel, first in the chemical composition is different from ordinary stainless steel, is a high alloy stainless steel containing high nickel,α high chromium, high molybdenum. Among them, 254SσMo containing 6%Mo has very good local corrosion resistance≈, good pitting resistance (PI≥40) and stress corrosion resistance under the conditions of s>eawater, aeration, gap and low speed scour. It is a substitute material for Ni-based alloy a§nd titanium alloy. Secondly, in the performance of high temperature or co₹rrosion resistance, with more excellent high temperature or corrosion resistanceφ, is not replaced by 304 stainless steel. In addition, from the classif§ication of stainless steel, special stainless steel metallographic struc®ture is a stable austenitic metallographic structure.
Because this special stainless steel is a kind of high alloy material, so in the manufac↕turing process is quite complex, generally people canφ only rely on the traditional process to make this special↓ stainless steel, such as perfusion, forging, calendering and so on.
National standards: UNS S31254, DIN/EN 1.4547, ASTM A280, ASME SA-∏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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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 exper↓ience have shown that even at slightly higher temperatures, 254SMO has a very high resi≠stance to crevice-corrosion in seawater, which only a few types of stainless stee<l have.
2. 254SMO's corrosion resistance in acidic and oxidizing halide solutions suc¶h as those required for paper bleaching production is comparable to that of 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, 254SMO has high ductility and impact strength a£s well as good weldability.
4. The high molybdenum content of 254SMO enables it to have a higher oxidation ra&te at annealing, resulting in a rougher surface than ordinary stainless steeδl after pickling. But this has no adverse effect on th↓e corrosion resistance of the steel.
Application:
1. Ocean: Marine structures in the Marine environment, seawater ↔desalination, mariculture, heat exchange of seawater, such as thin-walled¶ condensing pipes cooled by seawater in power plants, desalinatio n equipment, even in equipment where seawater may not flow, etc.
2. Environmental protection field: thermal power generation fl&ue gas desulfurization device, waste water treatment, the main parts are: absorber tower™ body, flue, door panels, inner parts, spray system, etc.
3. Energy: atomic power generation, comprehensive utilization of coal, tidal power generation, etc.
4. Petrochemical industry: oil refining, chemical equipment, petrochemical equipment, such as bellows in petrochemical equipment, etc.
5. Food field: salt making, desalination industry, such as salt making ∞or desalination equipment, soy sauce brewing, etc.Ω
6. High concentration chloride ion environment: papermaking indust↕ry, pulp and paper bleaching equipment, such as pulp di gesters, bleaching equipment, filter scrubber barrels πand press rollers and other bleaching equipment
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