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Overview of materials for Expanded Polystyrene (EPS)

Category Polymer , Thermoplastic , Polystyrene (PS) , Expanded Polystyrene (EPS)
Manufacturer
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
This property data is a summary of similar materials in the MatWeb database for the category "Expanded Polystyrene (EPS)". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
Physical Properties Metric English Comments
Density 0.00310 - 1.10 g/cc
0.000112 - 0.0397 lb/in³
Average value: 0.108 g/cc Grade Count:273
Apparent Bulk Density 0.00900 - 0.650 g/cc
0.000325 - 0.0235 lb/in³
Average value: 0.0682 g/cc Grade Count:21
Water Absorption 0.200 - 9.00 %
0.200 - 9.00 %
Average value: 1.40 % Grade Count:21
Particle Size 100 - 3150 µm
100 - 3150 µm
Average value: 1110 µm Grade Count:47
Water Vapor Transmission 50.0 - 200 g/m²/day
3.22 - 12.9 g/100 in²/day
Average value: 126 g/m²/day Grade Count:6
Viscosity 1.70 cP
1.70 cP
Average value: 1.70 cP Grade Count:4
Maximum Moisture Content 0.200
0.200
Average value: 0.200 Grade Count:13
Vapor Pressure 0.685 bar
514 torr
Average value: 0.685 bar Grade Count:9
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 0.0800 - 0.911 MPa
11.6 - 132 psi
Average value: 0.405 MPa Grade Count:29
Elongation at Break 5.00 - 13.4 %
5.00 - 13.4 %
Average value: 8.33 % Grade Count:20
Creep Strength 0.0600 - 0.300 MPa
8.70 - 43.5 psi
Average value: 0.156 MPa Grade Count:6
Modulus of Elasticity 0.00650 - 0.0400 GPa
0.943 - 5.80 ksi
Average value: 0.0203 GPa Grade Count:5
Flexural Yield Strength 0.0750 - 3.17 MPa
10.9 - 460 psi
Average value: 0.641 MPa Grade Count:63
Flexural Modulus 0.00628 - 0.0676 GPa
0.911 - 9.80 ksi
Average value: 0.0225 GPa Grade Count:23
Compressive Yield Strength 0.0900 - 10.9 MPa
13.1 - 1580 psi
Average value: 0.920 MPa Grade Count:56
Compressive Modulus 0.00500 - 0.0400 GPa
0.725 - 5.80 ksi
Average value: 0.0177 GPa Grade Count:6
Shear Strength 0.200 - 0.300 MPa
29.0 - 43.5 psi
Average value: 0.290 MPa Grade Count:5
Adhesive Bond Strength 0.100 - 0.400 MPa
14.5 - 58.0 psi
Average value: 0.165 MPa Grade Count:5
K Factor (Wear Factor) 54.0 - 59.0
54.0 - 59.0
Average value: 56.8 Grade Count:13
Compression Set 32.2 - 45.7 %
32.2 - 45.7 %
Average value: 41.1 % Grade Count:20
Thermal Properties Metric English Comments
CTE, linear 8.00 - 70.0 µm/m-°C
4.44 - 38.9 µin/in-°F
Average value: 30.7 µm/m-°C Grade Count:10
CTE, linear, Transverse to Flow 6.00 µm/m-°C
3.33 µin/in-°F
Average value: 6.00 µm/m-°C Grade Count:6
Thermal Conductivity 0.0270 - 0.0418 W/m-K
0.187 - 0.290 BTU-in/hr-ft²-°F
Average value: 0.0357 W/m-K Grade Count:21
0.0240 - 0.0370 W/m-K

@Temperature -80.0 - 50.0 °C
0.167 - 0.257 BTU-in/hr-ft²-°F

@Temperature -112 - 122 °F
Average value: 0.0312 W/m-K Grade Count:5
0.0240 - 0.0370 W/m-K

@Temperature -80.0 - 50.0 °C
0.167 - 0.257 BTU-in/hr-ft²-°F

@Temperature -112 - 122 °F
Average value: 0.0312 W/m-K Grade Count:1
0.0240 - 0.0370 W/m-K

@Thickness 50.0 - 50.0 mm
0.167 - 0.257 BTU-in/hr-ft²-°F

@Thickness 1.97 - 1.97 in
Average value: 0.0312 W/m-K Grade Count:1
Maximum Service Temperature, Air 75.0 - 118 °C
167 - 244 °F
Average value: 92.5 °C Grade Count:20
Softening Point 70.0 °C
158 °F
Average value: 70.0 °C Grade Count:26
Decomposition Temperature 220 °C
428 °F
Average value: 220 °C Grade Count:26
Flash Point -56.0 °C
-68.8 °F
Average value: -56.0 °C Grade Count:26
Processing Properties Metric English Comments
Moisture Content 0.500 - 3.00 %
0.500 - 3.00 %
Average value: 1.06 % Grade Count:37
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