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Brian Fasteners is a reputable manufacturer and supplier located in Houston, USA, specializing in top-notch SMO 254 Washers that are engineered for outstanding performance in tough, corrosive environments. We take pride in our precision engineering and unwavering commitment to quality, providing SMO 254 Washers to industries that demand exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. Our washers are built to last, making them perfect for extreme conditions in sectors like offshore oil & gas, chemical processing, marine, pulp & paper, and desalination plants. At Brian Fasteners, we deliver dependable fastening solutions for even the most challenging applications.
Crafted from a high-alloy austenitic stainless steel, SMO 254 Washers contain iron, chromium (19.5–20.5%), nickel (17.5–18.5%), molybdenum (6–6.5%), and nitrogen. This advanced blend provides remarkable corrosion resistance, particularly in environments rich in chlorides and acids. On the mechanical side, SMO 254 boasts a high tensile strength of about 650 MPa, a yield strength of 300 MPa, and an elongation of roughly 35–40%. The alloy retains excellent toughness and ductility, even in low temperatures. These characteristics make SMO 254 Washers ideal for extreme-service applications where both mechanical performance and corrosion resistance are vital.
| 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 125/127, ISO 7089/7090, ASME B18.22.1
Type Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling
Size M6-M64
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 Washers are widely used in industries that operate in aggressive and corrosive environments. Common applications include offshore platforms, seawater cooling systems, chemical tankers, desalination plants, flue gas cleaning, and food processing equipment. These washers provide an excellent sealing surface and load distribution in bolted joints exposed to high salinity, strong acids, and elevated temperatures. Their superior corrosion resistance and mechanical strength ensure long service life, reduce maintenance costs, and improve the reliability of critical systems. SMO 254 Washers are essential in operations where standard stainless steel washers would fail due to corrosion or stress.
SMO 254 washers are properly packed to make sure that they are not damaged in any way. Every washer is protected and packed separately in special, moisture proof containers to avoid any harm or contamination. Labeling should be clear so that it can easily be distinguished and sorted in the best manner possible. The packaging of our washers is very thorough to ensure that they are of the highest quality and are readily usable, which is in line with our company’s policy on quality and customer satisfaction.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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