Ultradur b4300


A thermoplastic polymer, such as butyl rubber, of a butylene liquefied petroleum gas, isobutene, butene-1, butene-2 that is manufactured in various degrees of elasticity, strength and stability. Used for films, coatings, pipes, tubing, fittings and many other services.

Ultradur® B4300 G6 Q631 (Polybutylene Terephthalate) Property Sheet

* All Values are Nominal.

Ultradur® B4300 G6 Q631 is an impact modified, 33% glass fiber reinforced PBT. It offers better notched and unnotched impact strength, elongation at break and hydrolytic stability vs. standard PBT with 30% glass fiber reinforcement.
Physical Value Test
Density-Specific Gravity 1.52 sp gr 23/23 ºC ASTM D792

Mechanical Value Test
Tensile Modulus 1.33e+006 psi ASTM D638
Tensile Strength @ Yld 16000 psi ASTM D638
Tensile Elongation @ Yld 4 % ASTM D638
Flexural Modulus 1.2e+006 psi ASTM D790
Flexural Strength @ Yld 27500 psi ASTM D790

Impact Value Test
Notched Izod Impact (73 ºF) 2.3 ft-lb/in ASTM D256
Unnotched Izod Impact (73 ºF) 12.5 ft-lb/in ASTM D256

Thermal Value Test
DTUL @ 264psi - Unannealed 395 ºF ASTM D648

** These are typical property values intended only as guides. They should not be used to establish specification limits or as the sole basis of design. Determining whether this information, or this plastic, should be used for a particular application is the responsibility of the user.


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