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Copper Sealing Gaskets: Custom Size Manufacturing
washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">Copper sealing gaskets(also called copper washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>or copper joint rings) are used in applications requiring excellent sealing performance under high pressure and temperature. Copper provides: excellent malleability for creating leak-proof seals even on rough surfaces, high thermal conductivity for heat dissipation, resistance to most petroleum products and mild washers/a>ls, and no risk of hydrogen embrittlement (unlike plated steel). washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>="/products#washers class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>hers" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">Custom size copper gasketsare manufactured to exact specifications for: oil and gas pipeline flanges, hydraulic systems, auwashers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>e fuel and brake systems, and refrigeration/air conditioning. Standard copper grades: C10100 (oxygen-free high conductivity copper) for electrical/thermal applications, C11000 (electrolytic tough pitch) for general sealing. Our factory produces washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a> class="text-primary-600 hover:text-primary-800 underline underline-offset-2">custom copper sealing gasketsfrom 3mm to 300mm ID, with special shapes (oval, lens, ring joint) available on custom order. Related resources: high-tensile bolts anchor bolts stainless steel fasteners hex bolts lock nuts washers self-drilling screws socket screws.
High Temperature Graphite Gaskets and Fasteners
washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">High temperature graphite gasket fasteners/a>/a> are essential for applications in: exhaust systems (up to 450°C for flexible graphite), industrial ovens and furnaces, steam systems (up to 550°C), chemical processing (varies by chemical compatibility), and power generation turbines. washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">Flexible graphite(also called Grafoil or expanded graphite) is the premium gasket material for high-temperature service—it maintains its sealing properties at temperatures where compressed fiber gaskets fail. Graphite gaskets are available as: flat graphite sheets cut to custom shapes, spiral wound gaskets (graphite wound with metal strip for flanged joints), and graphite foil tapes for wrapping around bolts/a>-nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>(bolt hole gaskets). For high-temperature bolted joints, the bolts/a>-washers/a>mary-800 underline underline-offset-2">nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>imary-600 hover:text-primary-800 underline underline-offset-2bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>products#boltsnuts class="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>ref="/products#boltsnuts class="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">fastener/a>/a>must also be rated for the temperature—the bolt grade and coating must maintain mechanical properties at service temperature.
Plastic Insulated Washers: Electrical and Chemical Isolation
washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">Plastic insulated flat washers/a>="/products#washers class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>"/products#washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>/a> and washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">plastic insulation spacing bolts/a>-nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>-nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>/a> provide electrical isolation between dissimilar metals, prevent galvanic corrosion, and provide electrical insulation in high-voltage applications. Common materials: Nylon 6/6 (polyamide): general purpose, -40°C to +105°C, good mechanical strength. PTFE (Teflon): excellent chemical resistance, -200°C to +260°C, but lower mechanical strength. PEEK: high performance, -60°C to +250°C, excellent mechanical properties. PVC: economical, -15°C to +60°C, good electrical insulation. washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">Plastic insulated spacing bolts/a>-nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>-nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>/a> are used to create a thermal break in assemblies where a metal washers/a>er:text-primary-800 underline underline-offset-2washers/a>over:text-primary-800 underwashers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>roducts#washwashers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>ver:text-primary-800 underline underline-offset-2">washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>ary-800 underline underline-offset-2bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>-offset-2bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>f="/products#boltsnuts class="text-primary-600 hover:text-primary-800 underline underwashers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a>ry-800 underline underline-offset-2bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>-offset-2bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">bolts/a>underline-offset-2">bolts/a>sss="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>" class="text-primary-600 hover:text-primary-800 underline underline-offset-2">nuts/a>:text-primary-800 underline underline-offset-2">fastener/a>/a> would create a thermal bridge (refrigerated containers, building facades). Available as fastener/a>set-2">washers/a>ass="text-primary-600 hover:text-primary-800 underline underline-offset-2">washers/a> class="text-primary-600 hover:text-primary-800 underline underline-offset-2">supplierstandard items or custom molded to specification.
Specialty Washer and Gasket Material Selection
Content coming soon.
| Material | Max Temp | Chemical Resistance | Common Applications |
|---|---|---|---|
| Compressed Fiber | 260°C | Moderate | General purpose, water, steam |
| Flexible Graphite | 450°C (air) / 650°C (inert) | Excellent | Exhaust, high-temp flanges |
| PTFE (Teflon) | 260°C | Excellent (except alkali metals) | Chemical, pure media |
| Copper | 400°C (intermittent) | Good (petroleum, mild chemicals) | Oil/gas, hydraulic, refrigeration |
| Nylon 6/6 | 105°C | Moderate (bases attack) | Electrical isolation, general |
| PEEK | 250°C | Excellent | Aerospace, medical, chemical |
| Silicone | 200°C | Good | Food grade, medical, flexible seals |
Frequently Asked Questions
See frequently asked questions below.
Related resources: high-tensile bolts anchor bolts stainless steel fasteners hex bolts lock nuts washers self-drilling screws socket screws.What is the difference between a gasket and a washer?
A washer is a load-spreading hardware component used with a bolt/nut. A gasket is a sealing element (often soft or compressible) used between two flat faces (like flanges) to prevent leakage.
Can plastic washers be used at high temperatures?
Standard nylon washers are limited to 105°C. For higher temperatures, use PTFE (260°C), PEEK (250°C), or graphite (450°C+) depending on the application.
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