From the moment I source our O-Ring Metric seals, I focus on consistency, precision, and reliability for serious OEMs and machining shops. As a dedicated High-Quality Supplier, I stock metric O-rings in NBR, FKM, EPDM and silicone to suit hydraulic and pneumatic systems. Each ring is manufactured to ISO 3601 standard tolerances and a strict QA protocol, ensuring optimal compression set and leak prevention across temperatures depending on material. We offer custom elastomer compounds, standard sizes in metric ranges, and fast sampling with wide-scale production. My service includes rapid lead times, batch traceability, and technical support to help you select the right hardness (durometer) and chemistry for chemical compatibility and pressure. If you’re a buyer seeking a reliable High-Quality Supplier, I’ll protect your seals and your reputation with every order.
As the O-ring metric market leader sets the industry standard, precision-engineered metric O-rings are redefining sealing performance across automotive, hydraulic, aerospace and industrial applications. Manufactured to exact metric tolerances with premium elastomers—NBR, FKM, EPDM and silicone—and advanced compounding, these seals deliver superior compression set resistance, low permeation and broad temperature/chemical compatibility. Rigorous dimensional inspection, full material traceability and international certifications ensure consistent interchangeability and long in-service life. Global buyers gain from scalable production, customizable cord diameters and ASV-compliant quality control, plus rapid prototyping and responsive technical support to integrate metric seals into complex assemblies. Optimized logistics, flexible MOQs and cost-effective sourcing minimize procurement risk and shorten development cycles, helping operations worldwide maintain uptime and meet demanding performance standards.
| Material | Temperature Range (°C) | Durometer (ShA) | Compression Set (22h @ 100°C) % | Oil Resistance (1-5) | Chemical Resistance (1-5) | Typical Applications |
|---|---|---|---|---|---|---|
| NBR (Nitrile) | -40 to 120 | 70–90 | 20–45 | 4 | 4 | Hydraulic & pneumatic seals; general-purpose gaskets |
| FKM (Fluorocarbon/Viton) | -20 to 204 | 60–90 | 18–35 | 5 | 5 | Fuel, oil, and high-temperature seals |
| EPDM | -50 to 150 | 60–80 | 25–50 | 2–3 | 3–4 | Water, steam, coolant seals; automotive cooling systems |
| Silicone | -60 to 230 | 30–70 | 30–65 | 1 | 3–4 | High-temperature seals; food-grade and pharmaceutical applications |
| FFKM (Perfluoroelastomer) | -40 to 250 | 60–85 | 20–40 | 5 | 5 | Seals for aggressive chemicals and extreme environments |