Metal O-Rings Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial metal o-ring manufacturers and suppliers. Access our comprehensive index to review and source metal o-ring manufacturers with preview ads and detailed product descriptions. These metal o-ring companies can design, engineer and manufacture metal o-rings to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these metal o-ring manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of metal craft rings, neoprene o-rings, custom large o-rings.

  • Chandler, AZ

    We strive to manufacture all our products from the highest quality materials. Our metal o rings are made from the highest quality metals, including high quality stainless steel. We know that quality is important to you, which is why it is important to us! WE offer affordable pricing and fast shipping in addition to our high quality items. Visit us online to see what we are all about!

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  • Sparta, NJ

    Allied Metrics Seals & Fasteners’ core strength is providing high quality seals and services to customers fast, yet at a reasonable, competitive price. We manufacture seals in all kind of sizes and carry out thorough inspections to ensure quality, performance and functionality. Call us whenever you need metal o-rings and we would be happy to supply them. Visit our website!

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  • Minneapolis, MN

    Precision Associates is a manufacturer of close tolerance, precision molded rubber seals and custom rubber products. We have over 2600 sizes of O-Ring molds and many other types of seals, such as, U-Cups, X-rings, rubber to metal bonded seals & much more- find what you need with the custom service you want!

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  • Rancho Cucamonga, CA

    O-RINGS, X-RINGS, CUSTOM PLASTIC PARTS: Stock & Custom AS-568 & metric in Nitrile 70 & 90 durometers, EPDM, Silicone, Fluorocarbon (Viton®), all sizes in Neoprene & HNBR. AS-568 sizes in Nitrile 70. X-rings manufactured in EPDM, Silicone, Fluorocarbon(Viton®), meeting specifications.

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  • Littleton, MA

    We demand the highest quality in all our products. We offer both standard and custom sizes to meet the needs of all our customers. If you have a simple or challenging sealing project where you need metal o rings, we can help! Contact us today to take advantage of our experience and knowledge on your next project. We would love to speak to you in person or communicate by email!

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  • Lancaster, NY

    Sometimes metal o rings are the only answer. We offer the superior customer service and product design that you need to succeed. We stand behind everything we do, and we are fully committed to providing you with outstanding products every single time. Before you go elsewhere, look to us to supply everything you could ask for!

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  • More Metal O-Rings Companies


Rubber Vs. Metal

Typically when most think of o-rings, they think of rubber models. Whether is silicone, viton, or another material, it tends to be a rubbery consistency. However, in some industries, metal o-rings are the best option. Like rubber o-rings, metal o-rings are disk shaped devices used for sealing. They can be used as a seal in piping, tubing, valves or vacuums. The advantages to metal models are that they are able to supply better temperature, pressure and corrosion resistance. This makes them more applicable to industries including nuclear, power generation, aerospace,... Read More

businessIndustry Information

Metal O-Rings

A metal o-ring is a device shaped like a disc and is primary used for sealing purposes. They are placed in items such as pipes, tubes, vacuums, and valves to function as an impermeable blockage within a joint that prevents liquids and gases from passing through. Metal can be used in joints with either static or dynamic compression, though it is more suitable to the former. Once in place, a metal o-ring creates a four-point seal within the joint, which is an ability unique only to o-rings made from metal. Metal o-rings are robust, have high-integrity dealing, and have many options for plating and tubing with ventilating options available.

Although elastomers are a popular choice of material for the production of o-rings, there are several characteristics of metal that makes it more suitable for some applications. Unlike elastomers, metals are more resistant to corrosion, pressure, and temperature. Metal o-rings can also feature plastic jackets that make full contact with the item as an alternative to the four-point seal. As the joint compresses and changes shape, the plastic coating can spread, filling any cracks and gaps that may occur in the surrounding materials. In addition to added plastic features, metals such as carbon are commonly utilized to prevent static sparks and electrical arcing in elastomer compounds.

Metal o-rings can be categorized into three basic types:

  1. Plain. This type of metal o-ring is not pressure-filled or self-energized, and is recommended for applications with low to moderate vacuum ratios and pressure levels, as higher pressure levels may cause the tubing wall to collapse.
  2. Self-energized. These metal o-rings are designed for high pressure applications. Small holes are drilled into the wall of the tubing, exposing it to the pressure in the system. These ventilation holes relay pressure inside the pipe or container in order to achieve enough pressure to adequately seal it., and thus reduce the possibility of the tubing wall collapsing.
  3. Pressure-filled. Like self-energized O-rings, these metal o-rings are for applications that require sealing at high pressures. They are filled with an inert gas which increases in pressure relative to the increase of temperature in the system. This creates an energizing effect that partially makes up for the loss of the machine’s material strength while in operation.

Metal o-rings are all fabricated by die casting, and can be made from materials such as gold, inconel, steel alloys, copper, silver, nickel, and aluminum. Plastic-based o-rings are also available, which are typically fabricated from synthetic rubbers such as silicone or viton. O-rings can also be plated or coated with metals such as indium, silver, gold, nickel, copper, cadmium, and Teflon, in order to make them stronger, more fitted, or more corrosion-resistant. Metal o-rings can then undergo further treatments including annealing, age hardening, or heat treating. The type of material and the required finishing processes are determined by the application for which the metal o-ring can be used. For example, heavy liquids typically do not require coating, but gases such as helium or hydrogen that are more volatile should be handled with extra care. If an o-ring that contains volatile fluids is coated, it serves as a safety measure and can improve the quality of the seal. Metal o-rings function best in temperatures ranging from -450°F to over 1300°F. Therefore, in choosing the right material for a top coating, one must consider the application’s temperature requirements. In addition to temperature range and type of coating, other considerations include diameter, vacuum range, and pressure range. Since o-rings are an important component in ensuring that a machine operates safely, they must undergo thorough dimensional and visual inspection.

Numerous types of metal o-rings are available to suit a variety of applications, and are thus used extensively in a wide range of industries. For example, applications in the aerospace industry involve factors such as close or exacting tolerances, high temperatures, fatigue resistance in engines and machinery, and extended chemical exposure. Another example is the nuclear industry. The nuclear industry involves applications that run the risk of radioactive leakage. Thus, these applications has a set of requirements as to which sealing systems work better to lessen these concerns. The semi-conductor and vacuum industries have become a vital part in modern society, because it plays a crucial role in the manufacturing of cutting-edge products. These high-tech, state-of-the-art pieces of equipment—such as computer chip processing equipment and fuel cells—require uniquely-shaped seals to keep them functioning properly. Metal o-rings assist in alleviating concerns such as noise, emissions, and even maintenance costs in these applications. Manufacturers of o-rings work closely with these industries to make sure their specific concerns are met.

Metal O-Rings
Metal O-Rings
Metal O-Rings
Metal O-Rings – Global O-Ring and Seal, LLC
Metal O-Rings – Allied Metrics Seals & Fasteners, Inc.
Metal O-Rings – Sealing Devices Inc.