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Crastin® ST820 NC010

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Polymer Name: Polybutylene Terephthalate (PBT), Thermoplastic Polyester
Processing Methods: Coating, Injection Molding, Extrusion
Additives Included: Mold Release Agent
Flexural Modulus: 1550.0 MPa
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TypeDocument Name
Brochure
Technology Profile Laser Welding
Technology Profile Laser Welding
Brochure
Brochure
DuPont Performance Polymers
DuPont Performance Polymers
Brochure
Other
Design information on Crastin® PBT and Rynite® PET
Design information on Crastin® PBT and Rynite® PET
Other
Other
Hot Runner Manual
Hot Runner Manual
Other
Other
Proper Use of Local Exhaust Ventilation During Processing of Plastics
Proper Use of Local Exhaust Ventilation During Processing of Plastics
Other
Other
DuPont Engineering Polymers General Design Principles - Module I
DuPont Engineering Polymers General Design Principles - Module I
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Other
General Design Principles - Module I: Chapter 9
General Design Principles - Module I: Chapter 9
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Other
General Design Principles - Module I: Chapter 7
General Design Principles - Module I: Chapter 7
Other
Other
General Design Principles - Module I: Chapter 6
General Design Principles - Module I: Chapter 6
Other
Other
General Design Principles - Module I: Chapter 5
General Design Principles - Module I: Chapter 5
Other
Other
General Design Principles - Module I: Chapter 4
General Design Principles - Module I: Chapter 4
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Other
Typical Processing Conditions for DuPont Engineering Polymers
Typical Processing Conditions for DuPont Engineering Polymers
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Identification & Functionality

Crastin® ST820 NC010 Features & Benefits

Applications & Uses

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus1700MPaISO 527-1/-2
Yield Stress38MPaISO 527-1/-2
Yield Strain7%ISO 527-1/-2
Flexural Modulus1550MPaISO 178
Flexural Strength50MPaISO 178
Stress (at Break, 50mm/min)30MPaISO 527-1/-2
Nominal Strain (at Break)min. 50%ISO 527-1/-2
Strain (at Break, 50mm/min)150%ISO 527-1/-2
Charpy Impact Strength (at 23°C)NkJ/m²ISO 179/1eU
Charpy Impact Strength (at -30°C)NkJ/m²ISO 179/1eU
Poisson's Ratio0.42--
Notched Charpy Impact Strength (at 23°C)85kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -30°C)10kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -40°C)10kJ/m²ISO 179/1eA
Notched Izod Impact Strength (at 23°C)60kJ/m²ISO 180/1A
Notched Izod Impact Strength (at -30°C)15kJ/m²ISO 180/1A
Notched Izod Impact Strength (at -40°C)10kJ/m²ISO 180/1A
Izod Impact Strength (at 23°C)NkJ/m²ISO 180/1U
Izod Impact Strength (at -30°C)NkJ/m²ISO 180/1U
Izod Impact Strength (at -40°C)270kJ/m²ISO 180/1U
Hardness (Rockwell Scale R)104-ISO 2039-2
Typical Properties
ValueUnitsTest Method / Conditions
Resin IdentificationPBT-HI-ISO 1043
Thermal Properties
ValueUnitsTest Method / Conditions
Specific Heat Capacity of Melt2100J/(kg K)-
Melt Temperature (at 10°C/min)225°CISO 11357-1/-3
Glass Transition Temperature (at 10°C/min)55°CISO 11357-1/-2
Temperature of Deflection Under Load (1.8 Mpa)50°CISO 75-1/-2
Temperature of Deflection Under Load (0.45 Mpa)100°CISO 75-1/-2
Temperature of Deflection Under Load (0.45 Mpa, Annealed)145°CISO 75-1/-2
Vicat Softening Temperature (at 50°C/H 50N)125°CISO 306
Coefficient of Linear Thermal Expansion (Parallel)147E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal)155E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal, at -40 to 23°C)108E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal, at 55-160°C)191E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Parallel, at -40 to 23°C)99E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Parallel, at 55-160°C)233E-6/KISO 11359-1/-2
Relative Thermal Index (Electrical, 0.75mm)75°CUL 746B
Relative Thermal Index (Impact, 0.75mm)75°CUL 746B
Relative Thermal Index (Strength, 0.75mm)75°CUL 746B
TGA curveavailable-ISO 11359-1/-2
Thermal Conductivity of Melt0.2W/(m K)ISO 22007-2
Electrical Properties
ValueUnitsTest Method / Conditions
Surface Resistivity1000000000000000OhmIEC 62631-3-2
Electric Strength27kV/mmIEC 60243-1
Relative Permittivity (at 1MHz)3.4-IEC 62631-2-1
Dissipation Factor (at 100 Hz)200E-4IEC 62631-2-1
Dissipation Factor (at 1 MHz)190E-4IEC 62631-2-1
Comparative Tracking Index600-IEC 60112
Volume Resistivitymin. 1E13Ohm.mIEC 62631-3-1
Flammability
ValueUnitsTest Method / Conditions
Oxygen Index19%ISO 4589-1/-2
FMVSS ClassB-ISO 3795 (FMVSS 302)
Burning Behavior (at 0.8mm Thickness)UL94 HBclassIEC 60695-11-10
Glow Wire Flammability Index (at 2mm)700°CIEC 60695-2-12
Glow Wire Flammability Index (at 3mm)700°CIEC 60695-2-12
Burning Rate (at 1mm Thickness)38mm/minISO 3795 (FMVSS 302)
Other Properties
ValueUnitsTest Method / Conditions
Humidity Absorption (at 2mm)0.12%Sim. to ISO 62
Water Absorption (at 2mm)0.31%Sim. to ISO 62
Density of Melt1030kg/m³-
Density1220kg/m³ISO 1183
Processing Information (Extrusion)
ValueUnitsTest Method / Conditions
Drying Temperature110 - 130°C-
Drying Time (Dehumidified Dryer)2 - 4h-
Processing Moisture Contentmax. 0.04%-
Melt Temperature Range240 - 260°C-
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Recommendedyes--
Drying Temperature120°C-
Drying Time (Dehumidified Dryer)2 - 4h-
Processing Moisture Contentmax. 0.04%-
Hold Pressure Rangemin. 60MPa-
Hold Pressure Time3s/mm-
Back PressureAs low as possibleMPa-
Ejection Temperature170°C-
Melt Temperature (Optimum)250°C-
Melt Temperature (Minimum)240°C-
Melt Temperature (Maximum)260°C-
Mold Temperature (Optimum)80°C-
Mold Temperature (Minimum)30°C-
Mold Temperature (Maximum)130°C-
VDA Properties
ValueUnitsTest Method / Conditions
Fogging (G-Value, Condensate)0.1mgISO 6452
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Mass Flow Rate (at 250°C, 5 kg)5g/10minISO 1133
Mold Shrinkage (Parallel)2.4%ISO 294-4, 2577
Mold Shrinkage (Normal)1.9%ISO 294-4, 2577
Mold Shrinkage (Parallel, Annealed)2.5%ISO 294-4
Post Mold Shrinkage (Normal, 48h at 80°C)0.6%ISO 294-4
Post Mold Shrinkage (Parallel, 48h at 80°C)0.8%ISO 294-4
Chemical Resistance
Chemical Type Chemical Name Resistance
Acids Acetic Acid (5% by mass) (23°C) Probably Resistant
Acids Chromic Acid solution (40% by mass) (23°C) Not Recommended
Acids Citric Acid solution (10% by mass) (23°C) Probably Resistant
Acids Hydrochloric Acid (36% by mass) (23°C) Not Recommended
Acids Lactic Acid (10% by mass) (23°C) Probably Resistant
Acids Nitric Acid (40% by mass) (23°C) Not Recommended
Acids Sulfuric Acid (38% by mass) (23°C) Not Recommended
Acids Sulfuric Acid (5% by mass) (23°C) Not Recommended
Alcohols Ethanol (23°C) Probably Resistant
Alcohols Isopropyl alcohol (23°C) Probably Resistant
Alcohols Methanol (23°C) Probably Resistant
Bases Ammonium Hydroxide solution (10% by mass) (23°C) Probably Resistant
Bases Sodium Hydroxide solution (1% by mass) (23°C) Probably Resistant
Bases Sodium Hydroxide solution (35% by mass) (23°C) Not Recommended
Ethers Diethyl ether (23°C) Probably Resistant
Hydrocarbons iso-Octane (23°C) Probably Resistant
Hydrocarbons n-Hexane (23°C) Probably Resistant
Hydrocarbons Toluene (23°C) Probably Resistant
Ketones Acetone (23°C) Probably Resistant
Mineral oils Insulating Oil (23°C) Probably Resistant
Mineral oils SAE 10W40 multigrade motor oil (130°C) Not Recommended
Mineral oils SAE 10W40 multigrade motor oil (23°C) Probably Resistant
Mineral oils SAE 80/90 hypoid-gear oil (130°C) Not Recommended
Other 1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C) Probably Resistant
Other 50% Oleic acid + 50% Olive Oil (23°C) Probably Resistant
Other DOT No. 4 Brake fluid (130°C) Not Recommended
Other Ethyl Acetate (23°C) Probably Resistant
Other Ethylene Glycol (50% by mass) in water (108°C) Not Recommended
Other Hydrogen peroxide (23°C) Not Recommended
Other Phenol solution (5% by mass) (23°C) Probably Resistant
Other Water (23°C) Probably Resistant
Other Water (90°C) Not Recommended
Salt solutions Sodium Carbonate solution (2% by mass) (23°C) Probably Resistant
Salt solutions Sodium Carbonate solution (20% by mass) (23°C) Probably Resistant
Salt solutions Sodium Chloride solution (10% by mass) (23°C) Probably Resistant
Salt solutions Sodium Hypochlorite solution (10% by mass) (23°C) Probably Resistant
Salt solutions Zinc Chloride solution (50% by mass) (23°C) Probably Resistant
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (>90°C) Not Recommended
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (23°C) Probably Resistant
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (90°C) Probably Resistant
Standard Fuels ISO 1817 Liquid 1 - E5 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 2 - M15E4 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 3 - M3E7 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 4 - M15 (60°C) Not Recommended
Standard Fuels Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C) Probably Resistant
Standard Fuels Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C) Probably Resistant

Regulatory & Compliance

Technical Details & Test Data

Viscosity vs Shear Rate

DuPont Crastin ST820 NC010 Viscosity vs Shear Rate

Shear Stress vs Shear Rate

DuPont Crastin ST820 NC010 Shear Stress vs Shear Rate

Stress vs Strain

DuPont Crastin ST820 NC010 Stress vs Strain

Secant Modulus vs Strain

DuPont Crastin ST820 NC010 Secant Modulus vs Strain

Stress vs Strain (Isochronous, 23°C)

DuPont Crastin ST820 NC010 Stress vs Strain (Isochronous, 23°C)

Creep Modulus vs Time (23°C)

DuPont Crastin ST820 NC010 Creep Modulus vs Time (23°C)

Tensile Modulus vs Temperature

DuPont Crastin ST820 NC010 Tensile Modulus vs Temperature

Packaging & Availability

Regional Availability