HNBR O-Rings » Hydrogenated Nitrile (HNBR) O-Rings

HNBR is a synthetic polymer derived from nitrile rubber by hydrogenating the compound. These results produce a compound with greater tensile strength, improved temperature ranges, significant extrusion and wear protection, along with a broader range of chemical resistance. HNBR orings are also known as Highly Saturated Nitrile (HSN) o-rings. Columbia offers a complete selection of both the standard AS568 o-ring and metric o-ring sizes. Columbia can also custom formulate HNBR o-rings to customer applications or specifications.

Chemical Compatibility Feature Requires Login!
Login or Register
Request a HNBR O-Ring Quote
Compare HNBR O-Rings vs Other Materials

 

Buy HSN O-Rings Online
HNBR O-Rings
hnbr o-ring right nav image

HNBR Orings » Chemical Compatibility Overview

HNBR
Chemical Resistance
Very
Good
Good
Fair
Poor
Aliphatic Hydrocarbons 1      
Automatic Transmission Fluid 1      
Automotive refrigerants 1      
Brake Fluids Non-Petroleum     3  
Chlorinated Hydrocarbons       4
Dilute Acids 1      
Hydraulic Fluids HFA, HFC, HFB 1      
Polar Solvents (Keytones)       4
Salt Solutions   2    
Silicone Oils 1      
Strong Acids       4
Vegetable & Animal Fats / Oils 1      
Water & Steam up to 300ºF 1      

HNBR Compound » Chemical Compatibility Lookup

Quick Find:
Your Chemical Selections (Results):
Selection
Chemical
Rating
1.    
2.    
3.    
4.    
5.    
6.    
7.    
8.    
9.    
10.    
11.    
12.    
13.    
14.    
15.    
16.    
17.    
18.    
19.    
20.    
Please Login To Use Functionality
*The HNBR o-ring compound attributes are used to outline the basic properties. HNBR o-ring attributes can be adjusted by modifying the basic compound.
*Due to the number of interacting forces, it is STRONGLY RECOMMENDED THAT YOUR ELASTOMER SELECTION BE RIGOROUSLY TESTED IN THE ACTUAL APPLICATION, performance assumptions must be checked so that you are certain that all variables have been carefully considered.

 

 

HNBR O-Rings » Physical Properties Overview

HNBR
Physical Properties
Very
Good
Good
Fair
Poor
Abrasion Resistance   2    
Acid Resistance 1      
Chemical Resistance     3  
Cold Resistance   2    
Compression Set Resistance   2    
Dynamic Properties   2    
Electrical Properties     3  
Elongation   2    
Flame Resistance       4
Heat Resistance 1      
Impermeability   2    
Oil Resistance 1      
Ozone Resistance   2    
Tear Resistance     3  
Tensile Strength 1      
Water Steam Resistance 1      
Weather Resistance   2    
*The chemical compatibility and physical properties are listed as general characteristics of the HNBR o-ring compound. Speciality compounds can be derived to enhance or modify the performance to meet o-ring's application needs.

HNBR Compound » Compound Attributes

Chemical Description Hydrogenated Acrylonitrile-butadiene
Abbreviations (ASTM 1418) HNBR
ISO / DIN HNBR
Other Trade Names HNBR / HSN
ASTM D2000 Designations DH
Low Temperature Range -22°F / -30°C
High Temperature Range 300°F / 149°C

Custom HNBR O-Rings

O-ring Measurement Chart
HNBR O-rings can be made in custom sizes to fit any application specific needs. Our engineering staff can review your application and design a solution that satisfies those requirements. You can find assistance with o-ring gland design here. You can find assistance with o-ring design here. To request a quote on your o-ring specifications please submit a RFQ here.
HNBR Oring Measurment Img

Standard AS568 HNBR O-Rings

All stocked HNBR AS568 o-rings have three measurement types. First, a nominal inch reference, then actual inch sizes, and finally the metric size displayed in millimeters. HNBR o-rings are stocked and cataloged by their AS568 number. This number references the Aerospace Standard 568 (AS 568) which was published by the SAE (Society of Automotive Engineers). Each o-ring is assigned a dash number which correlates directly to an exact o-ring size. You may view a complete chart of these o-ring sizes here.

Standard Metric HNBR O-Rings

HNBR O-rings are available in several metric sizes. Metric O-rings are cataloged by their cross section and inside diameter. Columbia references the metric HNBR o-rings by the compound number and the cross section along with the inside diameter. You may view a complete chart of the metric o-ring sizes here.
Products Examples by Category
Rubber Molding & Manufacturing:
Engineering, R&D, Product Realization:
Industry Experience & Solutions:
Molded Rubber