Super Austenitic Stainless Steel 254 Pipes

SMO 254 Pipes & Tubes are high-performance piping solutions engineered for critical environments requiring exceptional strength, durability, and corrosion resistance. These pipes and tubes are manufactured using an advanced austenitic stainless steel alloy known for its superior resistance to chloride-induced stress corrosion and crevice corrosion. Offered in both seamless and welded forms, these products come in a wide range of sizes, wall thicknesses, lengths, surface finishes, and end configurations, allowing for complete customization as per industrial and project-specific requirements. Whether it's round, square, hexagonal, or rectangular shapes, the variety ensures suitability across diverse operational setups.

We serve a broad industrial clientele with ready supply capabilities across India, the United Arab Emirates (UAE), the Kingdom of Saudi Arabia (KSA), Kuwait, Qatar, the Sultanate of Oman, Iran, and Iraq, ensuring timely delivery and adherence to international specifications like ASTM A312, ASTM A358, ASTM A213, and DIN 1.4547. These standards ensure that each product meets the highest levels of quality, performance, and consistency for demanding use cases, especially where exposure to aggressive chemical and marine environments is expected.

Technical Overview

SMO 254 (UNS S31254) is a super-austenitic stainless steel alloy characterized by its high content of molybdenum (6%), nitrogen, and chromium, which together provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-bearing environments. Its enhanced mechanical strength and outstanding welding characteristics allow it to perform reliably in demanding high-pressure and elevated-temperature environments. The enhanced nickel content further strengthens its corrosion-fighting capabilities, making it far more reliable than conventional stainless steels in saline or acidic conditions.

These pipes and tubes are often chosen for their outstanding mechanical properties, including high tensile strength, excellent ductility, and thermal stability, which make them suitable for fabrication, forming, and machining under rigorous conditions. The SMO 254 grade maintains its structural integrity even in elevated temperature operations, ensuring safe and efficient fluid or gas transportation systems. Strict quality controls, including hydrostatic testing, ultrasonic inspection, and material traceability, are implemented to guarantee flawless performance under extreme industrial stresses.

Applications & Industry Use

SMO 254 Pipes & Tubes are extensively used across sectors that demand both structural strength and chemical resilience. Their primary applications are found in chemical processing, desalination plants, pulp and paper production, offshore platforms, marine equipment, pharmaceuticals, and petrochemical installations. Due to their exceptional resistance to chlorides and seawater, they are ideal for heat exchangers, evaporators, and condensers located in coastal or marine environments. These pipes are also preferred in gas cleaning systems and flue gas desulfurization equipment due to their ability to resist acid attacks and corrosive media.

In addition, industries such as oil and gas exploration, power generation, food processing, water treatment, and structural construction benefit from the unmatched performance of SMO 254 Tubes in high-demand operations. Their ability to maintain integrity in highly acidic or saline conditions ensures long service life and minimal maintenance costs. Backed by advanced manufacturing expertise and a strong distribution network, we provide 254 SMO Pipes and Tubes engineered to support the complex demands of contemporary infrastructure and industrial projects throughout India and the Middle East.

SMO 254 Pipes and Tubes Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	SIS	AFNOR	EN
254 SMO	1.4547	S31254	2378	Z1 CNDU 20.18.06Az	X1CrNiMoCuN20-18-7

254 SMO Seamless Pipes

ASME SA 312 SMO 254 Seamless Pipes, UNS S31254 Seamless Pipes, DIN 1.4547 Seamless Pipes

254 SMO Seamless Tubes

ASTM A213 / A213 Stainless Steel SMO 254 Seamless Tube, UNS S31254 Seamless Tubing, DIN 1.4547 Seamless Tubes

254 SMO Welded Pipes

ASME SA213 SMO 254 Welded Pipes Supplier, Alloy 254 UNS S31254 Welded Pipes, DIN 1.4547 Welded Pipe

254 SMO Welded Tubes

DIN 1.4547 Welded Tubing, UNS S31254 Welded Tube, SMO 254 Welded Tubing, 254 SMO Welded Tubes

254 SMO EFW Pipes

ASME SA358 SS SMO 254 EFW Pipes,UNS S31254 EFW Pipes, DIN 1.4547 EFW Pipe Exporter

254 SMO ERW Pipes & Tubes

UNS S31254 ERW Pipes, DIN 1.4547 ERW Tubing, SMO 254 ERW Tubes, 254 SMO ERW Pipe

SMO 254 Pipe Specification :

ASTM A312, A358 / ASME SA312, SA358

SMO 254 Tube Specification :

ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554

SMO 254 Pipe Size :

1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.

SMO 254 Tube Size :

1/2" OD to 8" OD.

Thickness Range :

0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Type :

Seamless / ERW / Welded / Fabricated Pipes

Form :

Round, Square, Rectangular, Oval, Hydraulic Etc

Length :

Single Random, Double Random & Required Length

End :

Plain End, Beveled End, Treaded

Schedules :

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Inspection, Test Reports :

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports

Packing :

Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials :

Sizes and Specifications other than above can be manufactured on request

Chemical Composition of SMO 254 Seamless Pipes And Tubes