Grafton Pipe Fittings is a leading manufacturer and exporter of high-performance industrial components, specializing in the production of precision-engineered washers for various heavy-duty applications. Our ASTM F436 grade steel washers, manufactured using UNS K10465 carbon steel, are engineered to meet stringent mechanical and dimensional standards. These washers are widely used in structural bolting, high-temperature services, and heavy machinery due to their exceptional hardness, dimensional stability, and corrosion resistance.

The ASTM A193 Grade B7 standard governs the specifications for chromium-molybdenum alloy steel bolts intended for high-temperature service. The UNS K21590 material composition ensures superior mechanical performance, including high tensile strength and yield strength, excellent wear resistance, and long service life even in harsh environments. These fasteners are heat-treated and tempered to enhance performance under elevated conditions, which makes them a preferred choice in demanding applications.

At Grafton Pipe Fittings, we prioritize material traceability and provide Mill Test Certificates with every shipment to guarantee quality assurance. Our industrial washers comply with international standards including ANSI, DIN, BS, and ISO. The superior finish and accurate inner and outer diameters ensure perfect alignment during the bolting process, enhancing load distribution and reducing the risk of damage to connected components.

Being ISO-certified and having years of industry expertise, Grafton Pipe Fittings is the trusted name in the global marketplace for reliable washer solutions. We are committed to continual improvement and innovation in fastener manufacturing to ensure customer satisfaction and long-term value.

Specification Of Washer

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