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The Fasteners Mart, Mumbai, the headquarter of India, is a reputable supplier and exporter of high-quality industrial fasteners to various global industries. Among its extensive product list, SMO 254 Nuts are known for their superior performance in corrosive environments. Manufactured from Grade SMO 254 stainless steel, the nuts are supplied in hex, square, and customized shapes. The alloy provides outstanding corrosion resistance, especially against pitting and crevice corrosion, and is appropriate for seawater use and extreme chemical exposure in challenging industrial applications.
SMO 254 Nuts consist mainly of 20% chromium, 18% nickel, 6% molybdenum, and 0.2% nitrogen, which improve their corrosion resistance and strength. They possess a tensile strength of approximately 650 MPa and yield strength of 300 MPa, with elongation of about 35–40%. SMO 254 has a density of approximately 8 g/cm³, and the melting point is around 1350°C. All these properties provide outstanding mechanical performance in high-pressure, high-temperature, and corrosive conditions.
| Grade | Ni | C | Mo | Mn | Si | F | Cu | S | P | Cr |
| SMO 254 | 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 |
| Element | Density | Melting Point | Yield Strength (0.2%Offset | Tensile Strength | Elongation |
| SMO 254 | 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
Standard ASTM A182, A479 / ASME SA182, SA479
Dimensions DIN 934/936/982/985, ISO 4032 / 4033 /4035, ASME B18.2.2, B18.2.4.6M
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Size M6-M100
Type Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling
Length 3 mm to 200 mm
Grade SMO 254 F44 UNS (S31254), DIN (1.4547)
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
SMO 254 Nuts find extensive application in industries that demand high resistance to chlorides and severe chemicals, including offshore drilling for oil, desalination plants, chemical processing, pulp and paper manufacturing, and marine engineering. Their enhanced resistance to stress corrosion cracking and crevice corrosion renders them perfect for flange assemblies and pressure vessels in hostile environments. They provide secure fastening in corrosive and seawater environments, promoting structural integrity and long-term durability in high-performance applications.
The Fasteners Mart assures safe and prompt delivery of SMO 254 Nuts to domestic and overseas markets. Nuts are packed employing industry standard practices, such as moisture-proof packaging and robust wooden crates or corrugated boxes, to ensure secure transportation. The package is properly labeled so that it can be easily identified and traced, ensuring customers obtain products in their original form
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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