| About |
|---|
| GM7040GCF is a High Density Polyethylene compound specially developed for the manufacturing of extruded pipes for gas pressurized line. It is produced with bimodal technology and has high molar mass. It shows high mechanical properties and has excellent resistance to hydrostatic pressure and stress cracking. The resin has MRS (Minimum Required Strength) of 8 MPa according to ISO 9080 and is classified as PE 80 according to ISO 12162. GM7040GCF is manufactured in yellow color with heavy metal free pigments, and contains additives to protect it against ultraviolet radiation action and photodegradation. Meets the requirements of NBR 14462:00 and ISO 4437:07. Application: Yellow PE 80 pressure pipes for gas distribution; jacketing of underwater cables. Process: Pipe Extrusion.&& |
| Product Description | |
|---|---|
| Supplier | Braskem |
| Generic | HDPE |
| Material Status | Commercial: Negative |
| Features | Weather resistance is good,High molecular weight,Bimodal molecular weight distribution,High ESCR |
| Availabilitys | Latin America,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.947 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，5.0kg | 0.45 | g/10min | ASTM D1238 |
| ESCR(Environmental Stress Cracking Resistance) | |||
| 50 ℃, 2.00 mm, 100% non-ionic surfactant, molded, F50 | > 1000 | hr | ASTM D1693 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| Compression Molding | 240 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, molded | 68.0 | ℃ | ASTM D648 |
| Vicat Softening Temp | 122 | ℃ | ASTM D1525 2 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D, molded | 62 | ASTM D2240 | |
| tensile strength | ASTM D638 | ||
| Yield, molding | 23.0 | MPa | ASTM D638 |
| Fracture, molded | 37.0 | MPa | ASTM D638 |
| Tensile strain | ASTM D638 | ||
| Yield, molding | 9.2 | % | ASTM D638 |
| Fracture, molded | 770 | % | ASTM D638 |
| Bending modulus | |||
| 1% cut, molded | 1080 | MPa | ASTM D790 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Loading 1 (10 N) |
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