Saint-Gobain Meldin® 5055 Thermoplastic Bearing Material

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Saint-Gobain Meldin® 5055 Thermoplastic Bearing Material
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK)
Material Notes:	General Notes on Meldin 3000/5000 Series Bearing Products: Injection Moldable, High-Performance Bearings. Can withstand environments of high temperature, corrosive, and water. Specific Notes on Meldin® 5055 Bearing Meldin® 5055 low-friction, wear resistant bearings custom molded from Meldin® 5055 compound perform at high loads and high temperatures with minimal deformation. Meldin® 5055 is self-lubricating, operates quietly, and is resistant to most chemicals and fluids. Information provided by Saint Gobain Performance Plastics.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.40 g/cc	1.40 g/cc	ASTM D792
Water Absorption	0.20 %	0.20 %	ASTM D570

Mechanical Properties	Metric	English	Comments
Tensile Strength	112 MPa	16200 psi	ASTM D638
Elongation at Break	1.2 %	1.2 %	ASTM D638
Elongation at Yield	1.2 %	1.2 %	ASTM D638
Tensile Modulus	15.9 GPa	2310 ksi	ASTM D 638
Flexural Strength	14.5 MPa @Temperature 288 °C	2100 psi @Temperature 550 °F	ASTM D790
	182 MPa @Temperature 23.0 °C	26400 psi @Temperature 73.4 °F	ASTM D790
Flexural Modulus	0.860 GPa @Temperature 288 °C	125 ksi @Temperature 550 °F	ASTM D790
	14.5 GPa @Temperature 23.0 °C	2100 ksi @Temperature 73.4 °F	ASTM D790
Compressive Strength	124 MPa	18000 psi	ASTM D695
Compressive Modulus	3.10 GPa	450 ksi	ASTM D695
Poissons Ratio	0.42	0.42
Coefficient of Friction, Dynamic	0.20 - 0.23	0.20 - 0.23	Dry; ASTM D3702

Thermal Properties	Metric	English	Comments
CTE, linear	41.0 µm/m-°C @Temperature 24.0 - 143 °C	22.8 µin/in-°F @Temperature 75.2 - 289 °F	Below Tg; ASTM E831
	50.0 µm/m-°C @Temperature >=143 °C	27.8 µin/in-°F @Temperature >=289 °F	Above Tg; ASTM E831
Thermal Conductivity	0.760 W/m-K	5.27 BTU-in/hr-ft²-°F	ASTM F433
Melting Point	343 °C	649 °F	ASTM D3418
Maximum Service Temperature, Air	316 °C	600 °F	UL-746 B
Deflection Temperature at 1.8 MPa (264 psi)	316 °C	601 °F	ASTM D648
Glass Transition Temp, Tg	143 °C	289 °F	ASTM D3418

Descriptive Properties
Hardness, Rockwell K	24.9		ASTM D785

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PSTGQZ112 / 68624

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