Durethan® T40

Unreinforced, Injection Molding, Blow Molding Grade, Film Extrusion, Extrusion, Transparent

General Information

Durethan® is the trade name for our range of engineering thermoplastics based on polyamide 6 and polyamide 66. These polyamides are partially crystalline thermoplastics which offer an ideal combination of properties, especially for technical applications. They provide high mechanical strength and stiffness, good dielectric properties, high resistance to both heat and chemical attack, and good friction and wear properties.
Special features
Regulatory Affairs
Processing technology
Blow Molding, Extrusion, Injection Molding

Mechanical properties

Tensile modulus
3300
MPa
Yield stress
110
MPa
Yield strain
6
%
Flexural modulus
3000
MPa
Flexural strength
150
MPa
Charpy impact strength (+23°C)
N
kJ/m²
Charpy impact strength (-30°C)
N
kJ/m²
Charpy notched impact strength (+23°C)
<10
kJ/m²
Charpy notched impact strength (-30°C)
<10
kJ/m²
Izod notched impact strength (-40°C)
<10
kJ/m²

Thermal properties

Temp. of deflection under load (1.80 MPa)
105
°C
Temp. of deflection under load (0.45 MPa)
115
°C
Coeff. of linear therm. expansion (parallel)
0.7
E-4/°C
Coeff. of linear therm. expansion (normal)
0.8
E-4/°C
Burning Behav. at 0.75 mm nom. thickn.
V-2
class
Thickness tested
0.75
mm
Burning Behav. at 1.5 mm nom. thickn.
V-2
class
Thickness tested
1.5
mm
Glow Wire Flammability Index GWFI
960
°C
GWFI (Thickness (1) tested)
2
mm

Electrical properties

Relative permittivity (100Hz)
4.3
-
Relative permittivity (1 MHz)
3.8
-
Dissipation factor (100 Hz)
400
E-4
Dissipation factor (1 MHz)
900
E-4
Volume resistivity
1E13
Ohm*m
Surface resistivity
Ohm
Electric strength
25
kV/mm
Comparative tracking index
600
V

Other properties

Water absorption
6
%
Humidity absorption
2
%
Density
1180
kg/m³

Material specific properties

Viscosity number
107
cm³/g
Drying temperature dry air dryer
80
°C
Drying time dry air dryer
2-6
h
Residual moisture content
0.03-0.12
%
Melt temperature (Tmin - Tmax)
260-280
°C
Mold temperature
80-100
°C

Diagrams