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Acrylonitrile Butadiene Rubber (Nitrile / NBR Rubber )

Original price was: $320,00.Current price is: $310,00.

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Description

Nitrile Butadiene Rubber

Nitrile Butadiene Rubber for sale. Buy Nitrile (often referred to as buna-N rubber or perbunan) is the most commonly used elastomer in the seal industry. Nitrile is a copolymer of two monomers: acrylonitrile (ACN) and butadiene. The properties of these rubber compounds are determined by its ACN content, which is broken down into three classifications:

  • High nitrile >45% ACN content,
  • Medium nitrile 30-45% ACN content,
  • Low nitrile <30% ACN content.

Specfiication of NBR :

ANALYSIS ITEMS UNIT SPEC. METHOD
VOLATILE MATTER % MAX 0.5 ASTM D5668
ASH CONTENT % MAX 0.8 ASTM D5667
B-AN % 32.0-36.0 USP E493-03-U32
RAW MV( ML1+4,100°C) 36.0-46.0 ASTM D 1646
TENSILE STRENGTH 40MIN kgf/cm2 MIN 220.0 ASTM D 412
ELONGATION 40MIN % MIN 420 ASTM D 412
300% MODULUS40MIN kgf/cm2 120-180 ASTM D 412

The higher the ACN content, the better its resistance to hydrocarbon oils. The lower the ACN content the better its flexibility in low temperature applications. Medium nitrile is, therefore, most widely specified due to its good overall balance in most applications. Typically, nitriles can be compounded to work over a temperature range of –35°C to +120°C and are superior to most elastomers in regard to compression set, tear and abrasion resistance.

Nitrile / NBR usage

NBR is the standard material for hydraulics and pneumatics. NBR resists oil-based hydraulic fluids, fats, animal and vegetable oils, flame retardant liquids (HFA, HFB, HFC), grease, water, and air. Nitriles should be protected from direct sunlight. However, this can be improved through compounding by hydrogenation, carboxylic acid addition, or PVC blending, the nitrile polymer can meet a more specified range of physical or chemical requirements. Special low-temperature compounds are available for mineral oil-based fluids. Nitrile Butadiene Rubber.

Special variants

Special NBR variants like XNBR and NBR-PVC blends can be developed in-house on request.

Innovative solutions for custom parts in rubber

ERIKS designs and develops innovative solutions in custom moulded rubber and extruded parts. We offer fast delivery, competitive prices and engineering support. Our in-house CAD/CAM and FEA analysis and quality systems guarantee an individual approved.

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