Stainless Steel 254 SMO Suppliers, Manufacturers and Stockist – UNS S31254 (1.4547), ASTM A182 (F44), ASTM A240, ASTM A249, ASTM A269, A312, A469, A813, A814

• Metallica is one of the biggest stainless steel 254 SMO product supplier and manufacturer in India, with over 250 customers in India and overseas. We are bulk buyers and exporters of stainless steel 254 SMO pipes, plates, fittings and flanges, tubular products, piping components, bar products, structurals and wire products from our factory in India, and are able to give you the best price and quality just in time.
• We stock all major forms of stainless steel 254 SMO grade such as stainless steel 254 SMO pipe and tube, SS 254 SMO flange and fittings, SS 254 SMO butt-welding pipe fittings, SS 254 SMO elbow, SS 254 SMO tee, SS 254 SMO reducer, SS 254 SMO stub end, SS 254 SMO bars, 254 SMO sheets, gaskets, fasteners, valves, sanitary fittings etc. Being one of the largest volume stainless steel 254 SMO supplier in Mumbai, we can guarantee you the lowest prices.
• At Metallica Metals, we believe in selling in volume and increasing our customer base across the globe, enabling us to work on low margins. We have an extensive trader network across India and the Middle East, who buy from us on a regular basis.
• In addition to traders, we have many EPC contractors, companies and end users in various industries as our customers for stainless steel. We are leading stainless steel 254 SMO suppliers for various applications in high chloride environments due to its high levels of molybdenum and nickel.
• Stainless 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.

Stock & Production Range of Stainless Steel 254 SMO Materials

Full Range of Stainless Steel 254 SMO Products

What is Stainless Steel 254 SMO?

Stainless Steel 254 SMO is a high-alloy austenitic chromium-nickel-molybdenum stainless steel developed for use in seawater, pulp and paper industry, brackish water and other aggressive chloride-bearing media. The specific levels of Cr, Ni, Mo, and N in this “super austenitic” chemical makeup allow 31254 to combine impact toughness resistance to corrosion cracking, with pitting and crevice corrosion resistance. The result is strength of nearly twice that of 300 series stainless steels.

UNS S31254 is often referred to as a “6% Moly” grade due to the molybdenum content; the 6% Moly family has the ability to withstand high temperatures and maintain strength under volatile conditions. This grade has surpassed its original intent and overlapped into many industries proving useful owing to its high level of molybdenum amount other elements, which allows 31254 to be used successfully in various applications such as flue gas desulfurization and chemical environments. In some applications it has even been found to be a more cost effective substitute for high nickel and titanium alloys.

Properties and Processing Characteristics of Stainless Steel 254 SMO

Mechanical Properties of Stainless Steel 254 SMO

Physical Properties of Stainless Steel 254 SMO

Applications of Stainless Steel 254 SMO Plates, Pipes, Fasteners & Forgings

• Saltwater handling
• Tall oil distillation columns
• Flue gas desulfurization scrubbers
• Components used in petroleum production
• Food processing equipment
• Process equipment in chemical industry
• Bleaching equipment in the pulp and paper industry
• Flue-gas cleaning
• Desalination
• Heat exchangers

Fabrication Data & Other Properties of Stainless Steel 254 SMO

Avoid abrasion against copper/copper alloys or other similar metals which, if present in metallic form, can cause cracks during subsequent welding, hot processing or heat treatment.

Machinability

Stainless 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.

Bending

The excellent formability of 254 SMO permits cold bending to very tight bending radii. Annealing is not normally necessary after cold bending.

Welding

Welding 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.

Annealing

Annealing of this material should be performed at 1149-1204°C (2100-2200°F), which should be followed by a water quench.

Hot Working

Forging, 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 Working

Cold 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.

Hardening

Stainless steel grade 254 SMO™ does not respond to heat treatment. Hardening is possible only through cold reduction.

Forging

This is a highly alloyed material and the recommended forging temperature range is 2370/1920ºF (1300/1050ºC), followed by a solution anneal at 2100ºF (1150ºC) minimum temperature.

Corrosion Resistant Properties of Stainless Steel 254 SMO

• Excellent resistance to pitting and crevice corrosion due to its high chromium, molybdenum, and nitrogen content
• Has a very low carbon content, which means there is very little risk of carbide precipitation during heating
• Possesses very good resistance in water containing chlorides, therefore, it is suitable for use in seawater as it can be exposed to it for prolonged periods without suffering from crevice corrosion