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Help Center254SMO Seamless Stainless Steel Pipe / Stainless Steel Pipes UNS S31254
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254SMO seamless stainless steel pipe / stainless steel pipes UNS S31254
IntroductionStainless steel grade 254 SMO™ is a very high end austenitic stainless steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series. For certain applications, grade 254 SMO™ has been reported to be a cost-effective substitute for high nickel and titanium alloys. It is known to possess excellent workability as well. The following sections will discuss in detail about stainless steel grade 254 SMO™. Chemical CompositionThe chemical composition of stainless steel grade 254 SMO™ is outlined in the following table.
Physical PropertiesThe physical properties of stainless steel grade 254 SMO™ are tabulated below.
Mechanical PropertiesThe following table shows mechanical properties of stainless steel grade 254 SMO™.
Thermal PropertiesThe thermal properties of stainless steel grade 254 SMO™ are tabulated below.
Other DesignationsOther designations that are equivalent to stainless steel grade 254 SMO™ include the following.
Fabrication and Heat TreatmentMachinabilityStainless steel grade 254 SMO™ is quite tough to machine due to the extremely high work hardening rate and lack of sulfur content; however using sharp tools, overpowered machine tools, positive feeds, good amount of lubrication, and slow speeds tend to provide good machining results. WeldingWelding of stainless steel grade 254 SMO™ requires filler material without which it results in poor strength properties. Filler metals such as AWS A5.14 ERNiCrMo-3, and alloy 625 are recommended. Electrodes used in the process, have to match with AWS A5.11 ENiCrMo-12. AnnealingAnnealing of this material should be performed at 1149-1204°C (2100-2200°F), which should be followed by a water quench. Hot WorkingForging, upsetting and other operations relating to this material can be performed at 982 - 1149°C (1800 - 2100°F). It is recommended that temperatures do not exceed this range as it would result in scaling and reduction in the workability of the material. To re-attain maximum corrosion resistant properties, it is advisable to perform post-process annealing. Cold WorkingCold working can be carried out using all the traditional methods; however the process would be tough due to its high work hardening rate. The result will provide the material with increased strength and toughness. HardeningStainless steel grade 254 SMO™ does not respond to heat treatment. Hardening is possible only through cold reduction. ApplicationsStainless steel grade 254 SMO™ is used in the following areas:
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PackagingDetails: |
Products are well packed and clear labeled according to the regulations and customer's requests. |
| Delivery Detail: | 7-15days after receiving deposit |
1.Our Service For You
Pre-sale Service
1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices.
3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
6. We have 8 year experience of design, manufacture and sell lingerie, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale choose
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
Name:Lucy Cui
Phone:021-67896311
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