Westlake Plastics Lennite® GUR1020 (Type I) UHMW-PE For Medical Applications

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Westlake Plastics Lennite® GUR1020 (Type I) UHMW-PE For Medical Applications (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE)
Material Notes:	Replaced by Lennite WM . Medical grade Lennite UHMWPE is produced from premium resins in accordance with ASTM specification F648 and International Standard ISO 5834-1 for surgical implants. Westlake Plastics' proprietary manufacturing processes and stringent quality control permit a well consolidated and consistent fabricated form. Recommended sterilization techniques include EtO gas, cold sterilization and limited gamma irradiation. Applications Include: Total hip and knee joint prosthesis Various other surgical implants Medical devices Advantages of Medical Grade Lennite UHMWPE: Lot controlled and traceable ASTM F-648 and ISO 5834-1/2 Compliant Stress relieved Custom certifications available Information provided by Westlake Plastics Company.
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Physical Properties	Metric	English	Comments

Density	0.927 - 0.944 g/cc	0.0335 - 0.0341 lb/in³	Requirement
	0.936 g/cc	0.0338 lb/in³	Result
Ash	0.000055 %	0.000055 %	Result
	<= 0.00015 %	<= 0.00015 %	Requirement

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	>= 35.0 MPa	>= 5080 psi	Requirement
	54.3 MPa	7880 psi	Result
Tensile Strength, Yield	>= 21.0 MPa	>= 3050 psi	Requirement
	22.9 MPa	3320 psi	Result
Elongation at Break	>= 300 %	>= 300 %	Requirement
	430 %	430 %	Result
Izod Impact, Notched (ISO)	>= 140 kJ/m²	>= 66.6 ft-lb/in²	Requirement
	213 kJ/m²	101 ft-lb/in²	Result
Charpy Impact, Notched	>= 18.0 J/cm²	>= 85.7 ft-lb/in²	Requirement
	28.4 J/cm²	135 ft-lb/in²	Result

**
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PWEST998 / 131208

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