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Meldin Supplier

Saint-Gobain Meldin® 4320 Molded Wear Grade Polyamide-Imide
Categories: Polymer; Thermoplastic; Polyamide-imide (PAI)

Material Notes: Wear grade mainly used for washers when wear reduction and extended lifetime of the component are key.

All 4000 series compounds have common properties that make them suitable replacements for metal components: they are stiff and retain high mechanical strength at elevated temperatures; they are very durable even in harsh applications in regards to wear; and they are chemically compatible with all automotive fluids (fuels and oils).

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Physical PropertiesMetricEnglishComments
Density 1.51 g/cc0.0546 lb/in³ASTM D792
Water Absorption 0.17 %
@Temperature 23.0 °C,
Time 86400 sec
0.17 %
@Temperature 73.4 °F,
Time 24.0 hour
ASTM D570
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength  50.0 MPa
@Temperature 204 °C
7250 psi
@Temperature 399 °F
ASTM D638
 70.0 MPa
@Temperature 150 °C
10200 psi
@Temperature 302 °F
ASTM D638
 85.0 MPa
@Temperature 100 °C
12300 psi
@Temperature 212 °F
ASTM D638
 108 MPa
@Temperature 23.0 °C
15700 psi
@Temperature 73.4 °F
ASTM D638
Elongation at Break 2.4 %2.4 %ASTM D638
Tensile Modulus 7.20 GPa1040 ksiASTM D638
Flexural Strength  67.0 MPa
@Temperature 235 °C
9720 psi
@Temperature 455 °F
ASTM D790
 173 MPa
@Temperature 23.0 °C
25100 psi
@Temperature 73.4 °F
ASTM D790
Flexural Modulus 8.30 GPa1200 ksiASTM D790
Compressive Strength  71.0 MPa
@Temperature 235 °C
10300 psi
@Temperature 455 °F
ASTM D695
 129 MPa
@Temperature 23.0 °C
18700 psi
@Temperature 73.4 °F
ASTM D695
Compressive Modulus 5.60 GPa812 ksiASTM D695
 
Thermal PropertiesMetricEnglishComments
Melting Point 371 °C700 °FASTM D3418
Glass Transition Temp, Tg 280 °C536 °FASTM D3418

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PSTGQZ108y / 305348

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