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Hamad Fasteners is a reputable manufacturer and supplier of high-performance fasteners located in Riyadh, Saudi Arabia. We specialize in providing durable and corrosion-resistant solutions tailored for demanding industries. Our Hastelloy Washers are designed to excel in extreme environments, including chemical processing, marine systems, and pollution control. Renowned for their outstanding resistance to acids, oxidation, and stress-related corrosion, these washers are perfect for sealing and load-distribution tasks in critical assemblies. At Hamad Fasteners, we take pride in ensuring that each Hastelloy Washer adheres to global quality and dimensional standards, guaranteeing reliability even in the harshest industrial conditions.
Typically made from alloys like Hastelloy C276 or C22, our washers are primarily composed of nickel (around 57%), molybdenum, chromium, iron, and trace elements. They boast excellent resistance to strong oxidizing and reducing agents, such as hydrochloric, sulfuric, and nitric acids. These washers maintain their mechanical integrity even at high temperatures and under continuous chemical exposure. With impressive tensile strength and a non-magnetic nature, they are ideal for high-purity and high-risk environments. Their robust, non-reactive surface helps prevent galling and corrosion between metal joints, ensuring a longer service life and mechanical stability.
| Specifications | ASTM B574 / ASME SB574 |
|---|---|
| Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14 |
| Fasteners Length | 3 mm to 200 mm |
| Fastener Threads | UNF, BSW, BSF, METRIC, UNC or as required |
| Standard of High Nickel Alloy Fasteners | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 Hex nuts |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Surface Coating | Ptfe Coated High Nickel Alloy Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
| Fasteners Finishing | High Nickel Alloy : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), High Nickel Alloy, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide. |
| Grade | C | Mn | Si | Co | S | Ni | Cr | Fe | Mo | W | V | P |
| Hastelloy Fasteners | 0.010 max | 1.0 max | 0.08 max | 2.5 max | 0.03 max | Bal | 14.5 – 16.5 | 4 – 7 | 15 – 17 | 3 – 4.5 | 0.35 max | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy Fasteners | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
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.
Hastelloy Washers find their place in chemical reactors, pressure vessels, pipelines, flanges, and exhaust systems, particularly in sectors like petrochemical, pharmaceutical, wastewater treatment, and marine engineering. Their main role is to evenly distribute load and protect surfaces from damage under high clamping forces while resisting corrosion and chemical breakdown. These washers are crucial for maintaining tight, leak-free joints in critical environments where failure simply isn’t an option. Selected for their long-lasting durability and exceptional corrosion resistance, Hastelloy Washers are a dependable choice for sealing and support.
We at Hamad Fasteners make sure that our Hastelloy washers are packed with great care and precaution. The washers are packed in groups of one each in individual protective covers to avoid scratching, rusting or getting contaminated in the process. Some of our packaging products include; cartons that are highly durable and packaging solutions that are made to order. They help in easy identification and packing to enhance our reputation of delivering quality products in good condition.
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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