Durethan® B31SKH3.0

Unreinforced, Injection Molding, Heat Stabilized

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
Injection Molding

Rheological properties

Molding shrinkage (parallel)
0.9
%
Molding shrinkage (normal)
1.1
%

Mechanical properties

Tensile modulus
3700
MPa
Yield stress
90
MPa
Yield strain
4
%
Nominal strain at break
10
%
Flexural modulus
3000
MPa
Flexural strength
120
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 (+23°C)
<10
kJ/m²
Puncture - maximum force (+23°C)
4600
N
Puncture - maximum force (-30°C)
6800
N
Puncture energy (+23°C)
46
J
Puncture energy (-30°C)
70
J

Thermal properties

Melting temperature (10°C/min)
222
°C
Temp. of deflection under load (1.80 MPa)
60
°C
Temp. of deflection under load (0.45 MPa)
170
°C
Coeff. of linear therm. expansion (parallel)
0.7
E-4/°C
Coeff. of linear therm. expansion (normal)
0.9
E-4/°C

Other properties

Water absorption
10
%
Humidity absorption
3
%
Density
1140
kg/m³

Material specific properties

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