PBT Characteristics
Polybutylene Terephthalate (PBT) is a high-performance thermoplastic that is an optimal choice for food processing applications, as it is FDA- and USDA- approved for use with food. It offers an excellent combination of wear and moisture resistance with strength and toughness.
PBT is solvent-resistant at room temperature and can withstand a continuous operating temperature of 230° F. It offers excellent dimensional stability with high creep resistance and low moisture absorption. PBT is easily machined and fabricated. Characteristics include:
- Heat- and solvent-resistant
FDA compliant- High impact strength
- Meets ASTM D6261
- Can be intricately machined
Applications for PBT Thermoplastic
- Bushes, bearings and pistons
- Valves and manifolds
- Automotive parts
- Electronic equipment
- Food processing machinery parts
Contact a Dielectric Manufacturing knowledge expert to discuss the use of PBT for fabrication of your plastic parts. Call 800-367-9122 or email sales@dielectricmfg.com.
PBT Material Properties
Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com PBT Material Properties Provided By Dielectric Manufacturing, Richfield, Wisconsin
Property Metric units English units
General
Density 1.3e3 - 1.38e3 kg/m^3 0.047 - 0.0499 lb/ft^3
Mechanical
Yield Strength 5.65e7 - 6e7 Pa 8.19 - 8.7 ksi
Tensile Strength 5.65e7 - 6e7 Pa 8.19 - 8.7 ksi
Elongation 0.5 - 3 % strain 8.6 - 14.5 % strain
Hardness (Vickers) 1.67e8 - 1.77e8 Pa 17-18 HV
Impact Strength (un-notched) 1.34e5 - 2e5 J/m^2 63.8 - 95.2 ft.lbf/in^2
Fracture Toughness 1.59e6 - 2.75e6 Pa/m^0.5 1.45 - 2.51 ksi/in^0.5
Young's Modulus 1.93e9 - 3e9 Pa 0.28 - 0.435 10^6 psi
Thermal
Max Service Temperature 112 - 127 °C 234 - 261 °F
Melting Temperature 220 - 267 °C 428 - 513 °F
Insulator or Conductor Insulator Insulator
Specific Heat Capability 1.42e3 - 1.48e3 J/kg °C 0.339 - 0.353 BTU/lb. °F
Thermal Expansion Coefficient 1.08e-4 - 1.71e-7 strain/°C 60-95 µstrain/°F
Eco
CO2 Footprint 2.73 - 3.02 kg/kg 2.73 - 3.02 lb/lb
Recyclable Yes Yes
