Mourad Metals, based in Tunis, Tunisia, is a leading manufacturer and supplier of high-quality stainless steel products, specializing in SMO 254 Hex Bars and Rods. Renowned for its commitment to excellence, Mourad Metals ensures precision-engineered products that meet stringent international standards. With a focus on durability, corrosion resistance, and superior performance, the company serves diverse industrial sectors, including chemical processing, marine, and oil & gas industries. SMO 254 Hex Bars and Rods from Mourad Metals are crafted to deliver reliability in challenging environments, offering customers a trusted solution for demanding engineering and construction requirements.
SMO 254, also known as UNS S31254, is a super austenitic stainless steel containing approximately 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen. This precise composition provides exceptional resistance to pitting, crevice, and chloride-induced corrosion. Mechanically, SMO 254 Hex Bars and Rods exhibit high tensile strength, with typical yield strength around 50 ksi and ultimate tensile strength near 110 ksi, combined with excellent toughness and ductility. The material’s stability at elevated temperatures and resistance to stress corrosion cracking make it a reliable choice for critical industrial applications.
Standards : ASTM A276, A279, A479
Grade : SMO 254, UNS No. S31254
Diameter : 5mm~ 500 mm
Size : 1/2″ to 100″
Length : 100 mm to 6000 mm
Form : Hex, Square, Hex (A/F) Bush, Rectangle, Flat
Finish : Bright, Black, Polish
| Standard | SMO 254 |
| UNS | S31254 |
| WERKSTOFF NR. | 1.4547 |
| AFNOR | Z1 CNDU 20.18.06Az |
| SIS | 2378 |
| GOST | – |
| BS | – 254 |
| OR | – |
| EN | X1CrNiMoCuN20-18-7 |
| Diameter, mm | Tolerances, mm |
| 20-35 | -0/+0.15 |
| 40-45 | -0/+0.16 |
| 50-70 | -0/+0.19 |
| 75-95 | -0/+1.00 |
| 100-250 | -0/+1.50 |
Yes, SMO 254 Hex Bar and Rod can be welded. It requires careful welding techniques, using appropriate filler materials and maintaining proper heat control to preserve its corrosion resistance and strength.
SMO 254 Hex Bar and Rod should be stored in a dry, clean environment, protected from moisture, chemicals, and extreme temperatures. Use proper supports to prevent deformation and corrosion.
Yes, SMO 254 Hex Bar and Rod can be recycled. As a high-grade stainless steel, it retains its properties after recycling, making it an environmentally friendly option for reuse in manufacturing.
SMO 254 Hex Bars and Rods are widely used in industries where superior corrosion resistance and mechanical strength are essential. Their applications include chemical processing equipment, such as reactors, heat exchangers, and piping systems, as well as marine and offshore structures exposed to harsh saline environments. The material is also ideal for oil and gas processing plants, desalination units, and pharmaceutical equipment. Engineers prefer SMO 254 for components requiring long-term durability and minimal maintenance, making it an excellent choice for pumps, valves, fasteners, and structural elements in highly corrosive or high-temperature conditions, ensuring safety and longevity.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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