Materials · 星辰 9090
OM9090
90 Shore A high-modulus FFKM for high-pressure gas and extrusion-critical service — up to 290 °C.
Properties
ASTM methods, stated conditions
- Hardness
- 90 Shore A (ASTM D2240)
- Tensile strength
- 15.5 MPa (ASTM D412)
- Elongation at break
- 149 % (ASTM D412)
- Compression set
- 16 % (ASTM D395 Method B, 70 h @ 200 °C, 25 % deflection, Type B)
- Service temperature
- -10 °C to +290 °C
- Process compatibility
- Dry + Wet
- Seal type
- Static + Dynamic
- Colour
- Black
Read the compression set with its condition — 23 % measured at 300 °C tells you nothing about performance at 200 °C. Every figure on this site is published with the temperature and duration it was measured at, so you can compare grades on the same basis.
Typical applications
High-pressure gas, wellhead / BOP and extrusion-critical service
Comparable grades
Cross-reference
| Grade | Hardness | Service temp. | Comp. set | Why we pair them |
|---|---|---|---|---|
| Kalrez® 7090 | 90 Shore A | −26 to +325 °C | — | Matching durometer for high-pressure gas service; their upper limit is higher. |
| Kalrez® 0090 | 95 Shore A | −27 to +250 °C | — | Slightly higher durometer, commonly specified for rapid gas decompression duty. |
| Chemraz® 510 | 90 Shore A | −30 to +230 °C | — | Matching durometer; lower upper temperature limit. |
Parameter-level comparison only — This pairing is drawn from publicly published hardness, temperature and compression-set figures and is a screening aid, not an equivalence claim. Sealing performance depends on your actual media, temperature, pressure, motion and gland design. Validate with a sample before switching an approved part.
Other grades
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