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Mbemba Stainless is a reputable manufacturer and supplier located in Kinshasa, Congo, specializing in high-quality SMO 254 Stud Bolts. Crafted from super austenitic stainless steel, these stud bolts boast remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides and seawater. Mbemba Stainless is committed to precise manufacturing, rigorous quality control, and compliance with international standards. Their SMO 254 stud bolts are perfect for critical industrial applications, ensuring reliable performance, mechanical strength, and long-lasting durability in sectors like chemical processing, desalination, marine, and offshore oil and gas.
These SMO 254 Stud Bolts are made up of roughly 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, which together provide an impressive blend of corrosion resistance and mechanical strength. With a tensile strength of about 650 MPa and a yield strength of around 300 MPa, they also exhibit high ductility and toughness. The elevated levels of molybdenum and nitrogen significantly boost their resistance to chlorides and harsh chemicals, making them superior to standard stainless steels like 316L and 317L. Plus, these stud bolts are designed for excellent machinability and work seamlessly with high-performance nuts and flanges.
| SMO 254 Stud Bolt Specifications | ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 |
| SMO 254 Stud Bolt Dimensions | ASTM,DIN, BS,GB, IS and all International Standards |
| SMO 254 Stud Bolt Length | 3 mm to 200 mm |
| SMO 254 Stud Bolts Size | M02 to M33 | Custom Sizes |
| SMO 254 Stud Bolt Type | Stud Bolts, Heavy Stud bolt, Tie Bar, Tie Rod, Continuous Threaded Stud Bolts (Fully Threaded Studs without Chamfered Ends), Tap End Stud Bolts, Double End Stud Bolts, Double End Stud Bolts with Reduced Shank, Flange Stud Bolts (Fully Threaded Studs with Chamfered Ends), MS Stud Bolts, Metric Thread Stud Bolt, Rough Forged Stud Bolts, Stud Half Thread Bolts etc. |
| SMO 254 Stud Bolts Coating |
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| SMO 254 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 17.5 – 18.5 | 0.02 max | 6 – 6.5 | 1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
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We ensure full transparency of our SMO 254 Stud Bolts with high-quality assurance. All the orders are provided with necessary documents, such as a commercial invoice, packing list, fumigation certificate, heat treatment chart, and an NABL-approved lab test report. We provide a Material Test Certificate per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and a Third-Party Inspection Certificate. Our complete documentation is arranged to guarantee maximum client satisfaction.
SMO 254 Stud Bolts find extensive use in chemical and petrochemical plants, desalination facilities, seawater handling systems, heat exchangers, pulp and paper bleaching plants, marine structures, and offshore platforms. They are particularly well-suited for securing flanges, valves, pumps, and other essential components that face tough and corrosive conditions. Thanks to their impressive mechanical strength, corrosion resistance, and reliability, SMO 254 stud bolts are the go-to choice for demanding industrial and marine applications.







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