Neil Metals, located in Kolkata, India, is a reputable manufacturer and supplier of SMO 254 Hex Bars and Rods, known for their top-notch quality and impressive corrosion resistance. These bars are crafted to excel in tough environments, especially where chloride and seawater are present. SMO 254, a super austenitic stainless steel, is highly regarded for its remarkable mechanical properties and ease of welding. Neil Metals offers these hex bars in a variety of sizes, finishes, and custom specifications, ensuring they align with global standards and specific application needs. With a strong commitment to quality, precision, and timely delivery, Neil Metals caters to clients across various industrial sectors.
The composition of SMO 254 Hex Bars and Rods includes significant amounts of chromium (20%), molybdenum (6%), and nitrogen, along with about 18% nickel. This unique blend provides the alloy with outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. It boasts a high tensile strength of around 650 MPa and a yield strength of approximately 300 MPa, along with excellent ductility and impact toughness. These bars maintain their mechanical stability even under extreme conditions, making them perfect for high-pressure and high-temperature 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.
You’ll find SMO 254 Hex Bars and Rods widely used in chemical processing, desalination plants, offshore oil and gas platforms, marine environments, and the pulp and paper industries. Their ability to withstand aggressive chloride attacks makes them ideal for heat exchangers, condenser tubes, pump shafts, and seawater handling systems. They’re also utilized in flue gas cleaning, food processing equipment, and pharmaceutical applications where hygiene and corrosion resistance are paramount. With their superior strength and corrosion protection, SMO 254 bars deliver reliable performance even in the harshest industrial environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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