AKROMID®

UL
Preliminary

A3 GF 25 HU black (7237)PA66 GF25

AKROMID® A3 GF 25 HU black (7237) is a 25 % glass fiber reinforced polyamide 6.6. It is characterised by a high stiffness and strength. Furthermore, the material is heat stabilised and therefore perfectly suitable for technical parts in industrial engineering as well as in the automotive and agricultural machinery industry. This grade is UL 94 HB listed.

Features

heat stabilised 130

Regulatory

ul

Properties

Modulus

8.500MPa

Strength

185MPa

Impact

70kJ/m²

Mechanical Properties

Tensile modulus

ISO 527-2

1 mm/min | d.a.m.
8500 MPa

Tensile stress at break

ISO 527-2

5 mm/min | d.a.m.
185 MPa

Tensile strain at break

ISO 527-2

5 mm/min | d.a.m.
3,5 %

Charpy impact strength

ISO 179-1/1eU

23°C | d.a.m.
70 kJ/m²

Charpy notched impact strength

ISO 179-1/1eA

23°C | d.a.m.
10 kJ/m²

Thermal Properties

RTI electrical

UL 746B

UL
0,8mm Wall thickness
UL
1,6mm Wall thickness
UL
3,2mm Wall thickness
125 °C
130 °C
130 °C

RTI impact

UL 746B

UL
0,8mm Wall thickness
UL
1,6mm Wall thickness
UL
3,2mm Wall thickness
120 °C
120 °C
120 °C

RTI strength

UL 746B

UL
0,8mm Wall thickness
UL
1,6mm Wall thickness
UL
3,2mm Wall thickness
120 °C
130 °C
130 °C

Temperature of deflection under load HDT/A

ISO 75

1,8 MPa
255 °C

Temperature of deflection under load HDT/B

ISO 75

0,45 MPa
260 °C

Melting temperature

ISO 11357-3

DSC, 10K/min
262 °C

Flammability

Flammability

UL 94

UL
0,8 mm Wall thickness
UL
1,6 mm Wall thickness
UL
3,2 mm Wall thickness
HB Class
HB Class
HB Class

HWI

UL 746A

UL
3,2 mm Wall thickness
4 PLC

Burning rate (<100 mm/min)

FMVSS 302

> 1 mm Thickness
+

General Properties

Density

ISO 1183

23°C
1,32 g/cm³

Humidity absorption

ISO 1110

70°C, 62% r.H.
2,0 - 2,2 %

Molding shrinkage

ISO 294-4

flow
transverse
0,15 - 0,35 %
0,75 - 0,95 %

Electrical Properties

Comparative tracking index

ASTM D3638

UL
0 PLC

Disclaimer

All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.