Technical Informations

Raw materials used in the polyethylene pipe and fitting productions are classified with MRS (Minimum Required Strength) according to mechanic resistance criteria. MRS is the resistance value of material against inner pressure at 20 °C for 50 years. According to MRS, PE materials are classified in the side figure.

Safety co-efficient is determined according to class of raw material and state of the network in the PE pipe networks and all calculations are made according to this co-efficient. The safety co-efficient in the natural gas networks is C=2.0, safety co-efficient in the potable water distribution lines is C=1.25.

Raw Material MRS
(mpa)
PE 40 4,0
PE 80 8,0
PE 100 10

RAW MATERIAL SPECIFICATIONS

Polymer Data Unit Test Method PE 40 PE 80 PE 80 PE 100
Colour     Black yellow black Black/blue
Density(23°C) g / cm³ ISO 1183 >0,930 >0,930 >0,950 >0,950
MFR (190°C / 5kg) g / 10 dk ISO 1183 - 0,8-1,3 0,4-0,7 0,3-0,7
Mechanical Properties            
Elongation At Break % ISO 527 min % 350 min % 350 min % 350 min % 350
Elasticity Module MPa ISO 527 >500 >700 >700 >1000
Other Properties            
Oxidization Initial Time dk EN 728 >20 >20 >20 >20
Carbon Black Amount % ISO 6964 2-2.5 - 2-2.5 2-2.5
Carbon Black Distribution Nominal ISO 11420 max 3 - max 3 max 3