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HDT @0.46 Mpa (67 psi)

HDT stands for Heat Deflection Temperature or Heat Distortion Temperature. Following the ASTM D 648 (which is equivalent to the ISO 75) the HDT is the temperature at which a given polymer test bar will be bended of 0.25 mm under a given load.

In the case of the
HDT @ 0.46MPa the load value is 0.46 MPa (67 psi). Practically, the test bar is immersed in an oil bath that is heated and leads to a continuous increase of the bath temperature (usually 2°C per minute).

The deflection temperature is also sometimes called the 'deflection temperature under load' (DTUL). This temperature gives an estimate of the service temperature a given polymer can withstand. However this is only an estimate, and cannot predict how the final part will perform. Other settings like speed of the temperature increase or even part design will significantly influence the final thermal performance of an application.

Still, HDT @ 0.46Mpa is often more accurate than
HDT @ 1.8MPa. This last one being useful when final parts are used under high mechanical loads.

Find commercial grades matching your target using "Property Search - Heat Deflection Temperature" filter in Omnexus Plastics Database:


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HDT @0.46 Mpa (67 psi) Values of Several Plastics


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A-C     |      E-M     |      PA-PC     |      PE-PL     |      PM-PP     |      PS-X

Polymer Name Min Value (°C) Max Value (°C)
ABS - Acrylonitrile Butadiene Styrene 68.0 100.0
ABS Flame Retardant 90.0 120.0
ABS High Heat 100.0 125.0
ABS High Impact 90.0 110.0
ABS/PC Blend - Acrylonitrile Butadiene Styrene/Polycarbonate Blend 105.0 130.0
ABS/PC Blend 20% Glass Fiber 130.0 130.0
ABS/PC Flame Retardant 90.0 110.0
Amorphous TPI Blend, Ultra-high heat, Chemical Resistant (High Flow) 263.0 263.0
Amorphous TPI Blend, Ultra-high heat, Chemical Resistant (Standard Flow) 260.0 260.0
Amorphous TPI, High Heat, High Flow, Lead-Free Solderable, 30% GF 257.0 257.0
Amorphous TPI, High Heat, High Flow, Transparent, Lead-Free Solderable (High Flow) 250.0 250.0
Amorphous TPI, High Heat, High Flow, Transparent, Lead-Free Solderable (Standard Flow) 250.0 250.0
Amorphous TPI, Highest Heat, Chemical Resistant, 260°C UL RTI 278.0 278.0
Amorphous TPI, Moderate Heat, Transparent 237.0 237.0
Amorphous TPI, Moderate Heat, Transparent (Food Contact Approved) 237.0 237.0
Amorphous TPI, Moderate Heat, Transparent (Mold Release grade) 237.0 237.0
Amorphous TPI, Moderate Heat, Transparent (Powder form) 237.0 237.0
ASA - Acrylonitrile Styrene Acrylate 80.0 95.0
ASA/PC Blend - Acrylonitrile Styrene Acrylate/Polycarbonate Blend 125.0 130.0
ASA/PC Flame Retardant 130.0 130.0
ASA/PVC Blend - Acrylonitrile Styrene Acrylate/Polyvinyl Chloride Blend 80.0 85.0
CA - Cellulose Acetate 50.0 100.0
CAB - Cellulose Acetate Butyrate 54.0 108.0
CP - Cellulose Proprionate 60.0 120.0
COC - Cyclic Olefin Copolymer 127.0 170.0
CPVC - Chlorinated Polyvinyl Chloride 100.0 120.0
ECTFE - Ethylene Chlorotrifluoroethylene 90.0 92.0
ETFE - Ethylene Tetrafluoroethylene 105.0 105.0
EVA - Ethylene Vinyl Acetate 37.0 37.0
EVOH - Ethylene Vinyl Alcohol 80.0 100.0
FEP - Fluorinated Ethylene Propylene 70.0 70.0
HDPE - High Density Polyethylene 60.0 90.0
HIPS - High Impact Polystyrene 80.0 100.0
HIPS Flame Retardant V0 85.0 100.0
Ionomer (Ethylene-Methyl Acrylate Copolymer) 34.0 75.0
LCP - Liquid Crystal Polymer 220.0 220.0
LCP Carbon Fiber-reinforced 260.0 260.0
LCP Glass Fiber-reinforced 250.0 280.0
LCP Mineral-filled 220.0 260.0
LDPE - Low Density Polyethylene 40.0 50.0
MABS - Transparent Acrylonitrile Butadiene Styrene 104.0 106.0
PA 11 - (Polyamide 11) 30% Glass fiber reinforced 180.0 180.0
PA 11, Conductive 137.0 137.0
PA 11, Flexible 86.0 130.0
PA 11, Rigid 60.0 145.0
PA 12 (Polyamide 12), Conductive 114.0 114.0
PA 12, Fiber-reinforced 173.0 175.0
PA 12, Flexible 89.0 125.0
PA 12, Glass Filled 155.0 160.0
PA 12, Rigid 92.0 135.0
PA 46, 30% Glass Fiber 285.0 290.0
PA 6 - Polyamide 6 150.0 190.0
PA 6-10 - Polyamide 6-10 160.0 175.0
PA 66 - Polyamide 6-6 180.0 240.0
PA 66, 30% Glass Fiber 235.0 255.0
PA 66, 30% Mineral filled 229.0 231.0
PA 66, Impact Modified, 15-30% Glass Fiber 220.0 250.0
PA 66, Impact Modified 160.0 210.0
Polyamide semi-aromatic 110.0 150.0
PAN - Polyacrylonitrile 70.0 80.0
PAR - Polyarylate 180.0 180.0
PBT - Polybutylene Terephthalate 115.0 150.0
PBT, 30% Glass Fiber 215.0 250.0
PC (Polycarbonate) 20-40% Glass Fiber 140.0 155.0
PC (Polycarbonate) 20-40% Glass Fiber Flame Retardant 145.0 155.0
PC - Polycarbonate, high heat 150.0 190.0
PC/PBT Blend - Polycarbonate/Polybutylene Terephthalate Blend 91.0 118.0
PC/PBT blend, Glass Filled 135.0 215.0
PCTFE - Polymonochlorotrifluoroethylene 120.0 125.0
PE - Polyethylene 30% Glass Fiber 127.0 130.0
PEI - Polyetherimide 195.0 210.0
PEI, 30% Glass Fiber-reinforced 205.0 212.0
PEI, Mineral Filled 200.0 210.0
PESU - Polyethersulfone 205.0 212.0
PESU 10-30% glass fiber 215.0 221.0
PET - Polyethylene Terephthalate 75.0 115.0
PET, 30% Glass Fiber-reinforced 225.0 250.0
PET, 30/35% Glass Fiber-reinforced, Impact Modified 245.0 245.0
PETG - Polyethylene Terephthalate Glycol 69.0 71.0
PFA - Perfluoroalkoxy 70.0 75.0
PHB - Polyhydroxybutyrate 130.0 135.0
PLA - Polylactide 53.0 56.0
PMMA - Polymethylmethacrylate/Acrylic 80.0 110.0
PMMA (Acrylic) High Heat 90.0 170.0
PMMA (Acrylic) Impact Modified 75.0 100.0
PMP - Polymethylpentene 80.0 90.0
PMP 30% Glass Fiber-reinforced 121.0 177.0
PMP Mineral Filled 90.0 110.0
POM - Polyoxymethylene (Acetal) 158.0 172.0
POM (Acetal) Impact Modified 145.0 160.0
POM (Acetal) Low Friction 168.0 172.0
POM (Acetal) Mineral Filled 158.0 175.0
PP - Polypropylene 10-20% Glass Fiber 110.0 140.0
PP, 10-40% Mineral Filled 85.0 113.0
PP, 10-40% Talc Filled 100.0 127.0
PP, 30-40% Glass Fiber-reinforced 140.0 155.0
PP (Polypropylene) Copolymer 85.0 104.0
PP (Polypropylene) Homopolymer 100.0 120.0
PP, Impact Modified 75.0 88.0
PPA, 30% Mineral-filled 157.0 159.0
PPA, 33% Glass Fiber-reinforced 284.0 286.0
PPA, 33% Glass Fiber-reinforced – High Flow 279.0 280.0
PPA, 45% Glass Fiber-reinforced 286.0 288.0
PPE - Polyphenylene Ether 110.0 138.0
PPE, 30% Glass Fiber-reinforced 138.0 154.0
PPE, Flame Retardant 100.0 150.0
PPE, Impact Modified 100.0 120.0
PPE, Mineral Filled 100.0 120.0
PPS - Polyphenylene Sulfide 140.0 160.0
PPS, 20-30% Glass Fiber-reinforced 270.0 278.0
PPS, 40% Glass Fiber-reinforced 270.0 280.0
PPS, Conductive 230.0 260.0
PPS, Glass fiber & Mineral-filled 200.0 2803.0
PS (Polystyrene) 30% glass fiber 82.0 113.0
PS (Polystyrene) Crystal 75.0 100.0
PS, High Heat 90.0 110.0
PSU - Polysulfone 176.0 182.0
PSU, 30% Glass fiber-reinforced 180.0 190.0
PSU Mineral Filled 180.0 185.0
PTFE - Polytetrafluoroethylene 70.0 120.0
PVC (Polyvinyl Chloride), 20% Glass Fiber-reinforced 75.0 80.0
PVC, Plasticized 30.0 56.0
PVC, Plasticized Filled 30.0 56.0
PVC Rigid 57.0 80.0
PVDC - Polyvinylidene Chloride 80.0 90.0
PVDF - Polyvinylidene Fluoride 70.0 150.0
SAN - Styrene Acrylonitrile 105.0 115.0
SAN, 20% Glass Fiber-reinforced 105.0 115.0
SMMA - Styrene Methyl Methacrylate 100.0 100.0
TPI-PEEK Blend, Ultra-high heat, Chemical Resistant, High Flow, 240°C UL RTI 270.0 270.0
TPS, Injection General Purpose 35.0 45.0 1.650
TPS, Water Resistant 45.0 45.0
UHMWPE - Ultra High Molecular Weight Polyethylene 68.0 82.0
XLPE - Crosslinked Polyethylene 54.0 107.0

Find commercial grades matching your target using "Property Search - Heat Deflection Temperature" filter in Omnexus Plastics Database:


Omnexus Plastics Database - Property Search

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