General Properties of Isotactic PP And Advantages

Physical Properties Unit Test Method Value
Flow rate at 23°C-2. 16 Kgs. gms/10 mins. ISO-11 33 ASTM D1238/L 0.91
  D1238/L  
Specific Gravity at 23°C gm/cm3 ISO-1183 ASTM 0.90
  D1505  
HDT46N/cm2 °C ISO-75 ASTM A| 142
  D-648 B| 92
HDT 185N/cm2 °C ISO-75 ASTM A| 64
  EXM8 B| 50
Accelerated oven aging in air at 150°C
(Natural Ventilation)
hours ASTMD3012 1200 (2000)
10000 hrs. continous indoor service.
Maximum allowable thermal limit.
°C Extrapolation 117(120)
 
Mechanical Properties at 23°C
Flexural Modulus of elasticity daN/cm2
(kg/cm2)
ISO-178 ASTM
D790
A| 12,500
B| 12,500
Tensile strenght at yield daN/cm2
(kg/cm2)
ISO-527 ASTM
D638
A| 350
B| 330
Elongation at failure % ISO-527 ASTM
D638
A| 80
B| 200
Rockwell hardness alpha ASTM/D 785/B A| 50
B| 50
Maximum stress daN (kg) DIN 53412 A| 265
B| 80
Recorded energy at break Joule DIN 53443 A| 18
B| 2.5
Izod impact strenght notched Joule/dm
(kgcm/cm)
ISO-180 ASTM
D265
A| 50
B| 15
Izod impact strenght at 0°C unnotched Joule/dm
(kg cm/cm)
ISO-180 ASTM
D265
A| 4
B| 2.5
Izod impact strenght at 20°C unnotched daN/cm2
(kgcm/cm2)
ISO-180 ASTM
D638
A| 2.5
B| 2
Izod impact strenght at 20°C unnotched daN/cm2
(kg cm/cm)
ISO-180 ASTM
D265
A| 100
Vicat softening point under 1kg/mm2 load °C ISO-306 ASTM
D1525
A| 151
B| 150
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