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Braskem GM7040G HDPE High Density Extrusion Polyethylene

Category Polymer , Thermoplastic , Polyethylene (PE) , HDPE , High Density Polyethylene (HDPE), Pipe Grade
Manufacturer Braskem
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Braskem GM7040G HDPE High Density Extrusion Polyethylene.pdf
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Material Notes:
GM7040G is a high-density polyethylene compound specially developed for the manufacturing of extruded pipes for a gas pressurized line. It is produced with bimodal technology and has high molar mass. It shows high mechanical properties and has excellent resistance to hydrostatic pressure and to stress cracking. The resin has the MRS (Minimum Required Strength) of 8 MPa according to ISO 9080 and is classified as PE 80 according to ISO 12162. GM7040G is manufactured in a yellow color and contains additives to protect it against ultraviolet radiation action and photodegradation. Its applications include yellow PE 80 pressure pipes for gas distribution and jacketing of underwater cables.
Physical Properties Metric English Comments
Density 0.947 g/cc
0.0342 lb/in³
ASTM-D792
ESCR 100% Igepal® >= 1000 hour

@Thickness 2.00 mm,
Temperature 50.0 °C
>= 1000 hour

@Thickness 0.0787 in,
Temperature 122 °F
0.3 mm notched-plaques; ASTM-D1693
Melt Flow 0.45 g/10 min

@Load 5.00 kg,
Temperature 190 °C
0.45 g/10 min

@Load 11.0 lb,
Temperature 374 °F
ASTM-D1238
Mechanical Properties Metric English Comments
Hardness, Shore D 62
62
ASTM-D2240
Tensile Strength at Break 37.0 MPa
5370 psi
ASTM-D638
Tensile Strength, Yield 23.0 MPa
3340 psi
ASTM-D638
Elongation at Break 770 %
770 %
ASTM-D638
Elongation at Yield 9.2 %
9.2 %
ASTM-D638
Flexural Modulus, 1% Secant 1080 MPa
157000 psi
ASTM-D790
Izod Impact, Notched 2.40 J/cm
4.50 ft-lb/in
ASTM-D256
Thermal Properties Metric English Comments
Deflection Temperature at 0.46 MPa (66 psi) 68.0 °C
154 °F
ASTM-D648
Vicat Softening Point 122 °C

@Load 1.02 kg
252 °F

@Load 2.25 lb
ASTM-D1525
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