Styrene butadiene rubber (SBR)

Alternative and trade names
Sprintan™, Buna®, Europrene®
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Description

Styrene butadiene rubber (SBR) has a good abrasion resistance with a perfect impact strength as well as good aging stability if protected by additives.

Properties

General

Density ρ

0.91 - 1.5 g/cm³ at 20 °C

Mechanical

Elongation A

100 - 800 % at 20 °C

Max allowed stress σmax

43220 MPa at 20 °C

at 100-800% strain

Thermal

Coefficient of thermal expansion α

1.8E-4 1/K at 20 °C

Flammability

UL 94 HB

Max service temperature, long Tmaxlong

100 °C

Max service temperature, short Tmaxshort

120 °C

Specific heat capacity cp

1900 - 2000 J/(kg·K) at 20 °C

Thermal conductivity λ

0.17 - 0.25 W/(m·K) at 20 °C

Optical

Transparency

no

Technological properties

Application areas

Tires, cable sheathing, hoses, profiles, foam rubber

Processing methods

Compression molding, extrusion, vulcanization

This material data has been provided by M-Base.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.