PP – Polypropylene
PP, which is a member that polyolefin family, is a semi-crystalline material, however, also can occur amorphous. PP is suitable for thermoforming. The material loses impact strength and become brittle at temperatures below 0 ° C, while it maintains strength up to 100 – 120 ° C – is in the hot water / steam. PP is a relatively inexpensive material with good chemical resistance. PP semi-finished products like plates, rods, hollow bars and pressure pipe is normally extruded in gray RAL 7032 or natural.
Use plates also comes in pressure performance. Furthermore manufactured PP in modified form, including glass-reinforced polyester and EPDM. PP widely used in the chemical industry, including to vessels, containers and pipes. Since it can withstand high temperatures and hot liquid, it is also used for autoclaves and pump parts. Joins done mechanically or by welding. Since the PP’s more, the FDA approved for use in foods, it is an ideal material to use in the food industry.
- Pump parts
We stock PP in round bars, tubes and plates.
|Ball pressure hardness, N/mm²||66|
|Tensile strength, MPa||32|
|Modules of elasticity, MPa||1150|
|Moisture absorption 50%RF, %||<0,3|
|Application temperature, 0C||0/+100|
|Coefficient of expansion, 10-5/0C||11-16|
+ = useful
– = non useful