Can FOTMA manufacture tungsten carbide parts from my drawing or sample?

Yes. FOTMA produces custom carbide components from 2D/3D drawings or physical samples. Our engineers review geometry, tolerances, grade and surface finish, then route the part through pressing, sintering, CNC machining, grinding, EDM and polishing as required.

How do I choose the right cemented carbide grade?

Grade selection balances hardness against toughness. Lower cobalt binder content (around 6%) gives higher hardness and wear resistance for abrasive applications, while higher cobalt content (around 10 to 15% or more) improves toughness for impact loads such as shredder blades and mining tools. Share your operating conditions and we will recommend a grade.

Which quality standard does FOTMA follow?

All production procedures, including sintering, CNC machining, grinding, EDM and polishing, are operated under an ISO 9001:2015 quality management system. Dimensional inspection records and material documentation are available on request.

What information should I provide for a technical review?

Please send drawings (PDF, DWG, STEP or IGES), material or grade requirements, tolerances, surface finish, annual volume and the application environment. This allows our engineers to confirm manufacturability and propose the most cost-effective process route.

Does FOTMA supply materials other than tungsten carbide?

Yes. In addition to cemented carbide, FOTMA supplies tungsten alloys, tungsten-copper and molybdenum-copper electronic packaging materials, molybdenum products, nickel and nickel alloys such as Inconel 625 and 718, heating elements, ceramic products and CNC machined parts.

Wholesale Cemented Carbide Mechanical Sealing Rings supplier, Suppliers

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Wholesale Cemented Carbide Mechanical Sealing Rings supplier, Suppliers

Carbide sealing rings have the characteristics of wear resistance and corrosion resistance, and are widely used in mechanical seals in petroleum, chemical and other fields.

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Product Description

Cemented carbide sealing ring is made of tungsten carbide powder as raw material, adding an appropriate amount of cobalt powder or nickel powder as a binder, pressed into a ring shape through a certain mold, and sintered in a vacuum furnace or hydrogen reduction furnace. It is a relatively common production and processing product. Because of its high hardness, good anti-corrosion performance, and strong sealing, it has many applications in petrochemical and other sealing industries.

Carbide sealing rings have the characteristics of wear resistance and corrosion resistance, and are widely used in mechanical seals in petroleum, chemical and other fields.

Advantages of Tungsten Carbide Mechanical Sealing Rings

Precision Performance: After fine grinding, the appearance meets the precision requirements, the size and tolerance are extremely small, and the sealing performance is very superior.
Enhanced Durability: Corrosion-resistant rare elements are added to the process formula, and the sealing performance is more durable.
Structural Integrity: It is made of high-strength and high-hardness hard alloy material, which is not deformed and more compressive.
Material Excellence: The material of the sealing ring must have sufficient strength, hardness, wear resistance, corrosion resistance and impact toughness.

Cemented Carbide Grades for Seal Rings

Grade	Applications
YG6	Good hardness and normal strength, for drawing of steel and non-ferrous metal and alloy bars or tubes under the condition of higher Stress.
YG6X	High wear resistance and high hardness, for drawing of steel wires and non-ferrous metal wires or alloy bars under low-stress condition.
YG8	High wear resistance and high hardness, for drawing and straightening steels, non-ferrous metal and alloy bars and tubes; And for fabricating of machine parts, tools and wear parts.
YG8X	Good strength and impact toughness; suitable for plates, bars, saws, seal rings, tubes etc.
YG15	High Strength and impact toughness, for drawing steel rools and pipes under high stress condition.
YG20	Used as wear parts, sheets and some mechanical components.
ZK10UF	Fine-grained alloy, good wear resistance and high strength.
ZK30UF	Fine grain grade. Excellent wear resistance, high in strength and impact resistance.
YG6N	Good wear resistance and cautery resistance, high strength and fine impact toughness.
Suggestion: We would like to recommend suitable grade depending on your machining materials.

Frequently Asked Questions

1. What materials are used to make carbide sealing rings?

They are primarily made of tungsten carbide powder mixed with cobalt or nickel as a binder, then sintered in vacuum or hydrogen furnaces.

2. Why choose carbide over other materials for seals?

Tungsten carbide offers superior hardness, exceptional corrosion resistance, and high durability under extreme pressure.

3. Are these rings suitable for petrochemical applications?

Yes, due to their anti-corrosion properties and strong sealing capability, they are widely used in the petroleum and chemical industries.

4. How do I choose the right grade for my project?

The choice depends on your specific machining materials; we recommend consulting with experts to match the grade's hardness and toughness to your application.

5. Can these sealing rings handle high impact loads?

Yes, grades like YG15 are specifically designed with higher impact toughness for demanding mechanical environments .