Metallum Overseas manufactures, supplies and exports FKM-A O-Rings for industrial sealing applications. FKM-A is a Type A fluoroelastomer material known for its resistance to petroleum-based oils, hydrocarbons and various industrial chemicals. These O-rings are used in compatible sealing arrangements where temperature resistance, chemical compatibility and compression set performance are important.
The referenced FKM-A material has a specified temperature range of -26°C to 200°C, with hardness options of 75±5 and 90±2 Shore A. Actual suitability depends on the compound grade, service media, pressure, temperature and application requirements.
As an FKM-A O-Rings manufacturer, supplier and exporter, Metallum Overseas caters to industrial sealing requirements across various sectors. FKM-A O-rings can be specified according to the required dimensions, hardness, compound properties and application conditions.
Our team can review customer drawings, equipment specifications and operating conditions to help identify a suitable FKM-A O-ring for the intended application. Material selection should consider fluid compatibility, temperature exposure, pressure and the required sealing arrangement.
FKM-A O-rings are manufactured from Type A fluoroelastomer compounds formulated for industrial sealing applications. The referenced material contains approximately 66% fluorine and is bisphenol-cured and reinforced with carbon black. Its properties include resistance to petroleum-based oils and various aliphatic and aromatic hydrocarbons.
With a specified temperature range of -26°C to 200°C, FKM-A O-rings can be considered for compatible applications involving elevated operating temperatures and exposure to suitable oils, fuels and chemicals. Compatibility must be verified for the specific fluid and operating conditions before selection.
Share your required O-ring dimensions, hardness, operating temperature, pressure, service media, application and quantity with Metallum Overseas at info@metallumoverseas.com. Our team can review your requirements and assist with a suitable FKM-A O-ring specification.
FKM-A is a Type A binary copolymer fluoroelastomer compound specified for industrial sealing applications. The material characteristics include:
| Material: | FKM-A Binary Copolymer Fluoroelastomer |
| Fluorine Content: | 66% |
| Curing System: | Bisphenol-cured |
| Reinforcement: | Carbon black |
| Key Properties: | Compression set performance and resistance to petroleum-based oils, selected hydrocarbons and acids |
| Compound Options: | V75/401 and V90/401 |
| Product: | FKM-A O-rings |
| Material: | Type A Binary Copolymer Fluoroelastomer |
| Fluorine Content: | 66% |
| Hardness Options: | 75±5 Shore A and 90±2 Shore A |
| Compound Codes: | V75/401 and V90/401 |
| Tensile Strength: | Minimum 10 MPa for V75/401; minimum 13 MPa for V90/401 |
| Elongation at Break: | Minimum 150% for V75/401; minimum 130% for V90/401 |
| 100% Modulus: | Minimum 5 MPa for V75/401; minimum 8 MPa for V90/401 |
| Compression Set: | Maximum 25% at 200°C for 22 hours |
| Specific Gravity: | 1.85±0.05 g/cm³ |
| TR10: | -17°C for both compound options |
| Service Temperature Range: | -26°C to 200°C |
| Dimensions: | As per applicable standard, drawing or customer requirements |
| Application: | Compatible industrial sealing applications |
The following table presents the physical and mechanical properties of FKM-A O-rings in 75 and 90 Shore A hardness grades. It covers key performance parameters, including tensile strength, elongation, compression set and resistance to heat ageing. Actual performance may vary depending on the compound formulation and test conditions. Confirm the applicable technical datasheet before finalising specifications for critical applications.
| Property | Test Method | Unit | V75/401 | V90/401 |
|---|---|---|---|---|
| Hardness | ASTM D2240 | Shore A | 75±5 | 90±2 |
| Tensile Strength | ASTM D412 | MPa | ≥10 | ≥13 |
| Elongation at Break | ASTM D412 | % | ≥150 | ≥130 |
| 100% Modulus | ASTM D412 | MPa | ≥5 | ≥8 |
| Compression Set (200°C × 22 h) | ASTM D395 | % | ≤25 | ≤25 |
| Specific Gravity | ASTM D1817 | g/cm³ | 1.85±0.05 | 1.85±0.05 |
| Temperature Retraction, TR10 | ASTM D1329 | °C | -17 | -17 |
| Air Ageing (250°C × 70 h) – Change in Hardness | ASTM D573 / D2240 | Shore A | -5 to +5 | -5 to +5 |
| Air Ageing – Change in Tensile Strength | ASTM D573 / D412 | % | ≥-20 | ≥-20 |
| Air Ageing – Change in Elongation at Break | ASTM D573 / D412 | % | ≥-40 | ≥-40 |
Note: The listed values describe the specified compound grades and test conditions. Confirm the applicable technical datasheet and acceptance criteria before using these values for engineering approval or procurement.
The air-ageing test condition of 250°C for 70 hours is a laboratory test condition and should not be interpreted as the continuous service temperature. The specified service temperature range remains -26°C to 200°C.
FKM-A O-rings can be considered for industrial sealing applications where the compound's chemical compatibility and temperature capability meet the service requirements.
Compatibility must be checked against the exact fluid, concentration, temperature and pressure. FKM-A should not be assumed suitable for every chemical or operating environment.
Metallum Overseas reviews industrial sealing requirements against the applicable dimensions, compound specifications and customer purchase requirements. Inspection and documentation requirements can be discussed at the enquiry stage.
FKM-A O-rings are sealing components made from a Type A binary copolymer fluoroelastomer compound. The specified formulation contains 66% fluorine and uses bisphenol curing with carbon black reinforcement.
FKM-A is used here as a fluoroelastomer material designation, not as a proprietary Metallum Overseas brand. The compound options covered are V75/401 and V90/401.
The specified service temperature range is -26°C to 200°C. Actual suitability depends on the compound, service media and operating conditions.
The two specified options are 75±5 Shore A for V75/401 and 90±2 Shore A for V90/401.
The listed technical properties specify a minimum tensile strength of 10 MPa for V75/401 and 13 MPa for V90/401.
The listed maximum compression set is 25% after 22 hours at 200°C under the specified test method.
The compound is described as resistant to petroleum-based oils, aliphatic and aromatic hydrocarbons and selected acids. Compatibility should be verified for the specific fluid and operating conditions.
Requirements can be reviewed according to customer drawings, dimensions, applicable standards and equipment specifications.
Please provide the required dimensions, hardness, operating temperature, pressure, service media, application and quantity to help assess your requirements.
Metallum Overseas provides FKM-A O-Rings at reasonable prices in the market. You can Contact us to get the updated price list of FKM-A O-Rings. Our prices are best for all types of FKM-A O-Rings.
Metallum Overseas is a large stockist of FKM-A O-Rings. We maintain a huge stock of FKM-A O-Rings in different sizes, types, standards & other specifications to fulfill the demand of our clients across the globe. We can deliver FKM-A O-Rings on time for urgent requirements.
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