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API 6A Materials

API 6A materials are specifically designed for use in the oil and gas industry, where they must meet the stringent standards set by the American Petroleum Institute (API). These materials are essential for components used in wellhead and Christmas tree equipment, where safety, durability, and performance are critical in high-pressure and high-temperature environments. This guide covers the features, common applications, and the pros and cons of API 6A materials.


API 6A Viton, NBR, CanRez® FFKM and Kalrez® O-rings, gasket rapid manufacturing, & custom molded parts are available now!


Check with one of Canyon’s helpful product engineers for an expert material and manufacturing recommendation.

NSF 61 Materials

Features of API 6A Materials

API 6A materials are engineered to withstand the extreme conditions typical in oil and gas exploration and production. Key features include:
  • High-Pressure Resistance: API 6A materials are designed to handle extremely high pressures, making them suitable for wellhead equipment operating at pressures ranging from 2,000 to 20,000 PSI.
  • Temperature Tolerance: These materials can withstand extreme temperatures, often operating in environments ranging from sub-zero conditions to temperatures above 350°F (176°C) depending on the material type, ensuring their reliability in both high-temperature and arctic operations.
  • Corrosion Resistance: API 6A materials are resistant to corrosion caused by harsh substances, such as hydrogen sulfide (H2S), carbon dioxide (CO2), and other chemicals commonly found in oil and gas environments.
  • Durability and Toughness: These materials are designed to be highly durable, ensuring long-lasting performance in the face of mechanical stresses, fatigue, and wear that are typical in drilling and production operations.
  • Material Classes: API 6A materials are classified into different material classes based on their suitability for different environments, such as those containing sour gas, acidic conditions, or high concentrations of corrosive chemicals.

Common Applications of API 6A Materials

API 6A materials are widely used in oil and gas exploration, drilling, and production systems:
  • Wellhead Equipment: API 6A materials are used for valves, flanges, spools, and connectors in wellheads to ensure the integrity of the system under high pressure and temperature conditions.
  • Christmas Trees: These materials are essential for the valves, fittings, and other components that make up the Christmas tree, a crucial piece of equipment for controlling the flow of oil and gas from the well.
  • Blowout Preventers (BOPs): API 6A materials are used in the construction of blowout preventers to ensure that the equipment can withstand extreme pressure spikes during drilling operations and protect against well blowouts.
  • Subsea Equipment: For offshore and subsea oil and gas extraction, API 6A materials are used in subsea wellheads, manifolds, and flow control equipment, where they must perform reliably under high pressures, low temperatures, and corrosive seawater.
  • Valves and Fittings: API 6A materials are used in various types of valves, fittings, and connectors throughout oil and gas systems to maintain safety and control over the flow of fluids under high pressure.

Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.

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API 6A Elastomers

Oil Field Materials
Oil Field Materials

Explore materials for oil field applications: durable, resistant options engineered to withstand harsh conditions and demanding energy operations.

UL Certified  O-rings, Gaskets, Custom parts, Canyon Components
Specialty Compliances

Canyon have materials available for O-rings, gaskets, & custom parts with compliances ranging from USP Class VI <87> & <88> for medical applications, to FDA CFR 21.177.2600 grades A through F for different food types, to the various drinking water specifications like KTW and NSF. Whether it's metal, rubber, or plastic, Canyon can meet your needs!

API 6A O-rings, Gaskets, Custom parts, Canyon Components
Custom Parts

Here at Canyon Components, we make sure to offer our customers any manufacturing technique they desire. Whether your API 6A O-rings, gaskets, & custom molded parts be rubber, plastic, or metal, rest assured that Canyon Components can make it!

API 6A CanRez™ FFKM Perfluoroelastomer
CanRez™ FFKM Perfluoroelastomer

Extreme temperatures & chemicals require extreme solutions! ​API 6A CanRez™ FFKM materials offer extreme reliability where you need it most! Thousands of sizes in stock now!

API 6A Kalrez Perfluoroelastomers Canyon Components
Kalrez® FFKM Perfluoroelastomer

Canyon Components offers API 6A Kalrez® Perfluoroelastomer (FFKM) O-rings, gaskets, & custom molded parts at competitive prices and with great lead-times.

API 6A Parker® O-rings
API 6A Parker® O-rings, Parofluor parts, parker FKM Viton

Canyon Components offers API 6A Parker Hannifin® O-rings, Gaskets, ​API 6A Perfluoroelastomer (FFKM) parts, & custom molded parts at competitive prices and with great lead-times.

API 6A Viton O-rings, gaskets, custom parts Canyon Components
FKM (Viton®, Fluorocarbon)

API 6A FKM compounds, O-rings, gaskets, & custom molded parts exhibit excellent mechanical attributes as well as excellent resistance to high temperatures, mineral oil, ozone, fuels, hydraulic fluids, and many other solvents and chemicals.

API 6A Aflas O-rings, Gaskets, Custom parts, Canyon Components
Aflas® (TFE/P)

API 6A TFE/P (Aflas) compounds, O-rings, gaskets, & custom molded parts gives high resistance to steam, hot water, atmospheric wear, and many chemicals. TFE/P compounds provide superior performance in water, steam and virtually all caustic chemicals.

API 6A EPDM  O-rings, Gaskets, Custom parts, Canyon Components
EPDM (Ethylene Propylene)

API 6A EPDM materials, O-rings, gaskets, & custom molded parts can operate over a wide temperature range, and are compatible with glycol fluids that cause problems for most typical elastomeric seals.

API 6A Nitrile  O-rings, Gaskets, Custom parts, Canyon Components
NBR (Nitrile, Buna-N)

API 6A Nitrile O-rings, gaskets, & custom molded parts are very oil-resistant, have strong mechanical properties, are resistant to wear, and are relatively inexpensive. These properties make Nitrile the most commonly used general purpose O-ring, gasket, & custom molded part material.

API 6A HNBR O-rings, Gaskets, Custom parts, Canyon Components
HNBR (Hydrogenated Nitrile)

API 6A Hydrogenated Nitrile O-rings, gaskets, & custom molded parts offer higher strength and reduced degradation at high temperatures compared to conventional Nitrile materials. These properties make HNBR materials popular in the oil and gas industry, as well as many applications in the chemical industry.

API 6A XNBR O-rings, Gaskets, Custom parts, Canyon Components
XNBR (Carboxylated Nitrile)

API 6A XNBR O-rings, gaskets, & custom molded parts are similar to Nitrile, but the backbone has been chemically modified with a Carboxylic Acid group. The resulting elastomer is a Nitrile rubber with outstanding abrasion and chemical resistance, superior to that of traditional Nitrile.

API 6A Neoprene O-rings, Gaskets, Custom parts, Canyon Components
Neoprene (CR)

Chloroprene was the first synthetic rubber, and was developed commercially under the name Neoprene®. API 6A Chloroprene rubbers, O-rings, gaskets, & custom molded parts contain Chlorine in the polymer to reduce the reactivity to many oxidizing agents, as well as to oil and flame.

API 6A Polyurethane O-rings, Gaskets, Custom parts, Canyon Components
Polyurethane (PU, AU)

API 6A Polyurethane O-rings, gaskets, & custom molded parts generally have two or three times greater tensile strength and wear resistance than Nitrile and comparable polymers. Polyurethane also provides excellent permeation resistance when compared to most rubbers.

API 6A Teflon Encapsulated O-rings, Gaskets, Custom parts, Canyon Components
PTFE Encapsulated

API 6A FEP and PFA encapsulated O-rings consist of an elastomeric core and a seamlessly closed casing of modified PTFE. The elastomer core of encapsulated O-rings is typically made of FKM (Viton) or VMQ (silicone) and guarantees a uniform pre-tensioning at the sealing point.

API 6A Spring Energized Seals,  O-rings, Gaskets, Custom parts, Canyon Components
Spring Energized Seal (SES)

The harshest environments require specialized solutions. Often times, a Canyon Components API 6A Spring Energized Seal (SES) will be needed. SES are typically formatted in a multi-piece assembly consisting of a polymeric sealing component that is wrapped around a spring energizer.

Unlock Superior Performance with Canrez FFKM O-Rings - Explore High-Quality Sealing Solutions for Demanding Industrial Applications. Ensure High Chemical Resistance, Extreme Temperatures & Leak-Free Seals. Your Trusted Source for Canrez FFKM O-Rings.

API 6A Plastics

API 6A Materials Pros & Cons

API 6A materials are critical for ensuring the safety, durability, and reliability of equipment used in oil and gas drilling and production. With features such as high-pressure resistance, corrosion resistance, and the ability to perform under extreme temperatures, these materials are ideal for use in wellhead equipment, Christmas trees, blowout preventers, and subsea systems. While API 6A materials may come with higher costs and strict certification requirements, their exceptional performance in challenging environments makes them an indispensable choice for oil and gas operators. Understanding the features, applications, and potential drawbacks of API 6A materials will help you make informed decisions to ensure the success of your oil and gas projects.


Canyon Components strives to meet all customer service requests. Feel free to contact Canyon Components engineering and let our knowledgeable staff help you design the perfect part for your needs.

Pros of API 6A Materials

API 6A materials provide several benefits that make them ideal for critical oil and gas applications:
  • Compliance with Industry Standards: These materials meet the strict standards set by API, ensuring that equipment made from API 6A materials is safe, reliable, and performs to industry expectations.
  • Exceptional Durability: API 6A materials are designed to last, even in the most challenging environments, reducing the need for frequent replacements and lowering long-term maintenance costs.
  • Safety and Reliability: The ability of API 6A materials to withstand extreme pressures and temperatures ensures the safe operation of wellhead and drilling equipment, minimizing the risk of equipment failure.
  • Resistance to Corrosion: In corrosive oil and gas environments, API 6A materials are resistant to chemical degradation, ensuring that they maintain their integrity even when exposed to aggressive substances.
  • Custom Material Classes: With different material classes available, API 6A materials can be tailored to meet the specific needs of different environments, from sour gas wells to deepwater drilling operations.

Cons of API 6A Materials

While API 6A materials offer significant advantages, there are also some potential drawbacks:
  • Higher Costs: API 6A materials, particularly those designed for high-pressure and high-temperature (HPHT) environments or corrosive conditions, tend to be more expensive than standard materials due to their specialized properties.
  • Limited Availability: Not all suppliers offer materials that meet API 6A standards, which can limit the availability of certain components and increase lead times for custom parts.
  • Strict Certification Requirements: The rigorous testing and certification process required to ensure compliance with API 6A standards can add time and cost to product development and procurement.
  • Complex Manufacturing: Depending on the requirements of the application, the production of API 6A components often requires advanced manufacturing techniques and specialized materials, which can increase the complexity and cost of producing the final product.

Relevant Compliances

NACE TM0297 Materials: Corrosion-Resistant Solutions for Sour Gas Environments
NACE TM0297 Materials: Corrosion-Resistant Solutions for Sour Gas Environments

Discover NACE TM0297 materials, designed to resist corrosion in sour gas applications. Learn about their compliance with NACE standards and how they ensure durability and safety in challenging oil and gas environments.

NORSOK M-710 Materials: Certified Sealing Solutions for Oil and Gas Applications
NORSOK M-710 Materials: Certified Sealing Solutions for Oil and Gas Applications

Explore NORSOK M-710 materials, certified for use in oil and gas applications. Learn about their features, compliance with stringent industry standards, and how they ensure reliability in harsh, high-pressure environments.

Materials for Oil Field
Materials for Oil Field

Explore materials for oil field applications: durable, resistant options engineered to withstand harsh conditions and demanding energy operations.

Unlock Superior Performance with Canrez FFKM O-Rings - Explore High-Quality Sealing Solutions for Demanding Industrial Applications. Ensure High Chemical Resistance, Extreme Temperatures & Leak-Free Seals. Your Trusted Source for Canrez FFKM O-Rings.

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