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Hamad Fasteners, located in Riyadh, Saudi Arabia, has built a solid reputation as a manufacturer and supplier of top-notch fastening solutions for various industries, including petrochemicals, marine, construction, oil and gas, and power generation. The company prides itself on delivering products that boast superior quality and durability, offering a diverse range designed to excel in highly corrosive and demanding environments. Among their standout products, SMO 254 Washers are particularly celebrated for their remarkable corrosion resistance, mechanical strength, and reliability in extreme industrial settings.
These SMO 254 Washers are crafted from a blend of 20% chromium, 18% nickel, 6% molybdenum, and nitrogen, classifying them as super austenitic stainless steel. This unique blend grants them exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They exhibit impressive tensile strength of around 650 MPa and yield strength of about 300 MPa, maintaining excellent toughness and ductility even in sub-zero temperatures. Their balanced mechanical and chemical properties make them perfect for harsh chemical and marine environments.
| 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 marine applications such as shipbuilding and offshore platforms where they are exposed to seawater. They are essential for chemical processing industries since they offer the best protection from aggressive chemicals and high temperatures. Moreover, these washers are used in heat exchangers, pulp and paper industries and other industries where high strength and resistance to detrimental conditions is needed for proper functioning.
You’ll find SMO 254 Washers widely utilized in desalination plants, offshore platforms, chemical processing, power generation, and marine applications where resistance to chlorides and seawater is crucial. They ensure even load distribution, prevent surface damage, and enhance joint stability in bolted connections. Plus, their durability and resistance to aggressive chemicals make them a trusted choice in heat exchangers, pressure vessels, and the pulp and paper industries. These washers are especially favored in sectors that require long-lasting performance in tough conditions.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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