HNBR Hydrogenated Nitrile Butadiene Rubber Sheet

HNBR Hydrogenated Nitrile Butadiene Rubber Sheet

Product number:KXT B400HNBR

Quick Overview: HNBR is resistant to mineral oil-based hydraulic fluids, animal and vegetable fats, diesel fuel, ozone, sour gas, dilute acids & bases

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Product Description

Hydrogenated Nitrile HNBR  Rubber Sheet

Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN), is a special class of nitrile rubber (NBR) that has been hydrogenated to increase saturation of the butadiene segment of the carbon polymer backbone. By hydrogenating the nitrile copolymer, HNBR fills the gap left between NBR, EPDM and FKM elastomers where high temperature conditions require high tensile strength while maintaining excellent resistance to motor oils, sour gas, amine/oil mixtures, oxidized fuels, and lubricating oils.

HNBR is resistant to mineral oil-based hydraulic fluids, animal and vegetable fats, diesel fuel, ozone, sour gas, dilute acids & bases. HNBR also resists new bio-oils (biological oils). HNBR is suitable for high dynamic loads and has a good abrasion resistance

 

Limitations:
Like Nitrile, Hydrogenated Nitrile is not recommended for exposure to ethers, esters, ketones, or chlorinated hydrocarbons.

 

Advantages

High tensile strength and good physical properties at high temperatures

High strength, helps reduce extrusion and wear

• Good abrasion resistance and oil resistance

Superior heat resistance up to 140°C

Superior mechanical characteristics

Superior environmental resistance

Improved resistance to polar fluids

Good Chemical resistance

Cold flexibility

Cars

 

Application

Dilute acids, bases and salt solutions at moderate temperature

Actuator seals for gear box applications

HFA, HFB and HFC hydraulic fluids

Vegetable and animal fats and oils

Water and steam up to 149°C

Air conditioning applications

Used for general purpose

• Automotive applications

Refrigerents

• Gaskets., etc

 

HNBR Properties

Item

HNBR

Test Method

Color

Black


Specific gravity

1.3-1.6g/cm3

ASTM D297

Hardness

55°-85° Shore A

ASTM D2240

Tensile strength

18 MPa (min)

ASTM D412

Elongation at break

300% (min)

ASTM D412

Size

Varies


Compression set 150°C 22 hrs

Permanent set 18%(max)

ASTM D 395B

Low temperature resistance

-30

ASTM D1329

Temperature range

-35°C to +150°C

ASTM D2000

 

Chemical Compatibility Overview

HNBR

Excellent

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