Greene Tweed AR™ 1 Abrasive-Resistant Thermoplastic

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Greene Tweed AR™ 1 Abrasive-Resistant Thermoplastic
Categories:	Polymer; Thermoplastic
Material Notes:	Sand and other abrasives are often a challenge for pump users in the power industry. Clearances on line shaft bearings and bowl wear rings open up, increasing pump vibrations and reducing pump efficiency. Greene Tweed’s proprietary AR™ thermoplastic materials exhibit outstanding wear characteristics in media containing solids. AR1 offers excellent abrasive resistance as well as chemical resistance approaching that of PTFE. AR1 is rated from ambient to 120°F (49°C). AR1 is easy to machine, and clearance requirements are easily determined. AR1 works well in a variety of pumps in the power industry including those working with circulating water as well as screen wash pumps. AR materials have performance characteristics that exceed traditional technologies such as cutlass rubber, bronze and carbon materials. Applications: Circulating water pumps Open and closed cooling water pumps River water pumps Screen wash pumps Sump pumps Information provided by Greene Tweed.
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Physical Properties	Original Value	Comments

Specific Gravity	2.00 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore D	65	ASTM D2240
Tensile Strength, Yield	2270 psi	ASTM D4745
Elongation at Break	300 %	ASTM D1457
Tensile Modulus	165000 psi	ASTM D638
Flexural Strength	2790 psi	at 5% strain; ASTM D790
Flexural Modulus	157000 psi	ASTM D790
Compressive Strength	2700 psi	ASTM D695
Compressive Modulus	139000 psi	ASTM D695

Thermal Properties	Original Value	Comments
CTE, linear	60.0 µin/in-°F @Temperature 100 °C
Maximum Service Temperature, Air	120 °F
Minimum Service Temperature, Air	60.0 °F

Descriptive Properties
Color	Brown

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PGREEN69 / 42363

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