Braskem GM8250T HDPE High Density Extrusion Polyethylene

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Braskem GM8250T HDPE High Density Extrusion Polyethylene (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Pipe Grade
Material Notes:	GM8250T is a high-density polyethylene specially developed for the manufacturing of corrugated pipes. It has high molar mass and shows excellent tenacity, high stiffness, good impact resistance, and good resistance to stress cracking, as well as a high resistance to oxidative degradation. Its applications include corrugated pipes for energy and telecom cables protection and for drainage of roads and sports fields.
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Physical Properties	Metric	English	Comments

Density	0.955 g/cc	0.0345 lb/in³	ASTM-D792
ESCR 100% Igepal®	530 hour @Thickness 2.00 mm, Temperature 50.0 °C	530 hour @Thickness 0.0787 in, Temperature 122 °F	0.3 mm notched-plaques; ASTM-D1693
Oxidative Induction Time (OIT)	>= 40 min @Temperature 200 °C	>= 40 min @Temperature 392 °F	ASTM-D3895
Melt Flow	8.0 g/10 min @Load 21.6 kg, Temperature 190 °C	8.0 g/10 min @Load 47.6 lb, Temperature 374 °F	ASTM-D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	63	63	ASTM-D2240
Tensile Strength at Break	38.0 MPa	5510 psi	ASTM-D638
Tensile Strength, Yield	27.0 MPa	3920 psi	ASTM-D638
Elongation at Break	850 %	850 %	ASTM-D638
Elongation at Yield	8.2 %	8.2 %	ASTM-D638
Flexural Modulus, 1% Secant	1320 MPa	191000 psi	ASTM-D790
Izod Impact, Notched	3.45 J/cm	6.46 ft-lb/in	ASTM-D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	74.0 °C	165 °F	ASTM-D648
Vicat Softening Point	128 °C @Load 1.02 kg	262 °F @Load 2.25 lb	ASTM-D1525

**
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PBRAS802 / 106648

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