Durethan® BM25FN20 700350

25% Mineral Reinforced, Injection Molding, Flame Retardant (halogen free), 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)
0.9
%

Mechanical properties

Tensile modulus
6200
MPa
Stress at break
80
MPa
Strain at break
2.2
%
Flexural modulus
5500
MPa
Flexural strength
135
MPa
Charpy impact strength (+23°C)
38
kJ/m²
Izod notched impact strength (+23°C)
<10
kJ/m²

Thermal properties

Melting temperature (10°C/min)
220
°C
Temp. of deflection under load (1.80 MPa)
90
°C
Temp. of deflection under load (0.45 MPa)
195
°C
Coeff. of linear therm. expansion (parallel)
0.6
E-4/°C
Coeff. of linear therm. expansion (normal)
0.7
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
Ball pressure temperature
205
°C
Glow Wire Flammability Index GWFI
960
°C
GWFI (Thickness (1) tested)
0.75
mm
Glow Wire Flammability Index GWFI
960
°C
GWFI (Thickness (2) tested)
1.5
mm
Glow Wire Ignition Temperature GWIT
725
°C
GWIT (Thickness (1) tested)
0.75
mm
Glow Wire Ignition Temperature GWIT
725
°C
GWIT (Thickness (2) tested)
1.5
mm

Electrical properties

Comparative tracking index
450
V

Other properties

Water absorption
6.7
%
Density
1380
kg/m³

Material specific properties

Drying temperature dry air dryer
80
°C
Drying time dry air dryer
2-6
h
Residual moisture content
0.03-0.07
%
Melt temperature (Tmin - Tmax)
250-270
°C
Mold temperature
80-100
°C

Diagrams