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HNBR (Hydrogenated Nitrile Butadiene Rubber) S-seals are rigorously tested to ensure performance in high-pressure, high-temperature (HPHT) and harsh, sour (
) environments, commonly adhering to NORSOK M-710 and API 6A standards. Key tests include Rapid Gas Decompression (RGD) resistance, accelerated aging, and immersion testing for volume/hardness changes.
Key HNBR S-Seal Testing Procedures
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Seal (Elastomer) Compatibility Tests
Intertek
https://www.intertek.com › automotive › seal-elastomer...
Intertek
https://www.intertek.com › automotive › seal-elastomer...
Intertek offers Seal (elastomer) Compatibility Testing, Supporting Research and Certification services helping you get your products to market faster.
People also ask
Is HNBR better than Viton?
However, VITON sheets have limitations in resisting alkaline substances and amine compounds and possess inferior mechanical properties compared to HNBR. For more information or to order HNBR and VITON rubber sheets, please contact the HyperSheet brand.
Let's examine the 5 differences between HNBR and VITON rubber ...
polytechindustry.co.th
https://www.polytechindustry.co.th › content › let039s-e...
polytechindustry.co.th
https://www.polytechindustry.co.th › content › let039s-e...
What is an S seal?
The S-Seal is a premium elastomeric seal for oilfield applications. The S-Seal was designed to be a high performance improvement over traditional components such as T-Seals. Basically, an S-Seal is a molded elastomeric seal with integral metal springs positioned to prevent seal deformation into the extrusion gap.
S-Seals
dxpe.com
https://www.dxpe.com › uploads › 2018/09 › DXP_S_Seal
dxpe.com
https://www.dxpe.com › uploads › 2018/09 › DXP_S_Seal
What is an HNBR seal?
Hydrogenated Nitrile Rubber, abbreviated as HNBR, has been developed to meet higher temperatures than standard NBR while retaining resistance to mineral-based oils. Additionally, HNBR offers outstanding resistance to glycol-based coolants, hot water, and ozone.
HNBR - ERIKS
ERIKS
https://eriks.com › rubber-materials-overview › hnbr
ERIKS
https://eriks.com › rubber-materials-overview › hnbr
What is the difference between EPDM rubber and HNBR rubber?
- HNBR rubber sheets possess superior mechanical properties, strength, and abrasion resistance compared to EPDM. - EPDM rubber sheets are more economical, widely available, and offer greater variety. - HNBR rubber sheets are specialized, produced for specific applications, such as oil drilling, and are more expensive.
7 differences between EPDM and HNBR rubber sheets.
polytechindustry.co.th
https://www.polytechindustry.co.th › content › 7-differe...
polytechindustry.co.th
https://www.polytechindustry.co.th › content › 7-differe...
Web results
What testing methods are used for HNBR rubber? - Blog
Chengdu Eson New Material Co.,Ltd.
https://www.esonmaterial.com › Blog
Chengdu Eson New Material Co.,Ltd.
https://www.esonmaterial.com › Blog
Aug 11, 2025 — Immersion testing is the most common method used to assess the chemical resistance of HNBR rubber. In this test, rubber samples are immersed in ...Read more
13” Elastomer S Seal PR2 Test
JST-Seals
https://www.jst-seals.com › blog › 13-elastomer-s-seal-pr...
JST-Seals
https://www.jst-seals.com › blog › 13-elastomer-s-seal-pr...
JST 3" External S seal passed PR2 test, as well as 13” S seal. JST S seal use material HNBR85+316SS, BV witnessed HNBR S seal at working condition -29°C to ...Read more
Chapter B2 - HNBR seal material
Kalsi Engineering
https://www.kalsi.com › handbook › B02_HNBR
Kalsi Engineering
https://www.kalsi.com › handbook › B02_HNBR
PDF
Wide Footprint SealsTM made from the -10 HNBR compound have been satisfactorily tested in low differential pressure conditions at 302°F (150°C) with an ISO. 32 ...Read more
8 pages
Custom Engineered S-Seals
Parker US
https://www.parker.com › Parker-com › Literature
Parker US
https://www.parker.com › Parker-com › Literature
PDF
Apr 1, 2018 — HNBR compound for API 6A ... Parker also recommends that any seal be tested in the application conditions before releasing for production.Read more
14 pages
Typical Value in Seal - HNBR
Eng-Tips
https://www.eng-tips.com › threads › typical-value-in-s...
Eng-Tips
https://www.eng-tips.com › threads › typical-value-in-s...
Aug 14, 2015 — Look for specifications ASTM D2000 / SAE J200 for classification of rubber materials. These will give you the typical pass/fail requirements ...Read more
HNBR S-Seals For Downhole Application
Linde Polymer Tec
https://www.lindeseals.com › Products › S-Seals
Linde Polymer Tec
https://www.lindeseals.com › Products › S-Seals
HNBR S-seals for downhole application are a kind of seal for special applications. These S-seals are well suited for sealing wellheads, connectors, ...Read more
Corrosion mechanism of hydrogenated nitrile butadiene ...
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
by D Zeng2016Cited by 51 — Corrosion testing of hydrogenated nitrile butadiene rubber (HNBR) O-ring was conducted at 140 °C, 35 MPa containing 0.5 MPa CO2 for 168 h in simulated ...Read more
HF HNBR O-Rings: Safe for long-term fuel exposure?
Bob Is The Oil Guy
https://bobistheoilguy.com › forums › threads › hf-hnbr-...
Bob Is The Oil Guy
https://bobistheoilguy.com › forums › threads › hf-hnbr-...
Dec 21, 2018 — HNBR is an enhanced nitrile rubber and listed as excellent for exposure to fuel and oil and high temperature.Read more
HNBR seals - Pushing Boundaries for the Energy, Oil, & ...
Harkesh Rubber
https://www.harkesh.com › hnbr-seals-pushing-boundari...
Harkesh Rubber
https://www.harkesh.com › hnbr-seals-pushing-boundari...
Tests conducted have proved that HNBR seals promise stronger resistance over standard nitriles and fluorocarbon when directly in contact with heat, aggressive ...Read more