Polyethylene 271-70K
Cable Sheathing Manufacturing · Wire and Cable Insulation · Electrotechnical Industry
- Production method
- Gas-phase polymerisation using Unipol technology
- Processing method
- Extrusion
- Density (at 20°C), g/cm³
- 0,950 – 0,955
- Melt flow index, g/10 min, 190°C/5,0 kgf
- 0,40 – 0,65
Technical Specifications
| Parameter | Value | Method / unit |
|---|---|---|
| Production method | Gas-phase polymerisation using Unipol technology | — |
| Processing method | Extrusion | — |
| Density (at 20°C), g/cm³ | 0,950 – 0,955 | ASTM D 1505 / ISO 1183 · °C |
| Melt flow index, g/10 min, 190°C/5,0 kgf | 0,40 – 0,65 | ASTM D 1238 / ISO 1133 · g/10 min |
| Within-batch MFI deviation, %, max. | ±10 | ASTM D 1238 / ISO 1133 · % |
| Number of foreign particles, pcs., max. | max 10 | — |
| Tensile yield strength, MPa (kgf/cm²), min. | min 22,6 (230) | ASTM D 638 / ISO 527 |
| Tensile strength, MPa (kgf/cm²), min. | min 21,6 (220) | ASTM D 638 / ISO 527 |
| Elongation at break, %, min. | min 700 | ASTM D 638 / ISO 527 · % |
| Cracking resistance (ESCR), hours, min. | min 500 | — |
| Dielectric loss tangent (1 MHz), max. | max 2·10⁻⁴ | ASTM D 150 |
| Dielectric permittivity (1 MHz), max. | max 2,4 | ASTM D 150 |
| Electrical strength, kV/mm, min. | min 35 | ASTM D 149 |
| Mass fraction of volatile matter, %, max. | max 0,10 | ISO 4437 · % |
| Mass fraction of ash, %, max. | max 0,05 | % |
Detailed application areas
For primary cable sheathing and various electrotechnical products.
Use Cases
- Cable Sheathing Manufacturing
- Wire and Cable Insulation
- Electrotechnical Industry
- Electrical Insulation
Packaging & storage
Packaging
Polyethylene is packed in 25 kg polyethylene or polypropylene bags and transported by rail and road.
Shelf Life
6 years from the date of manufacture
Documents
Technical data sheet (TDS)
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Product Information
Polyethylene 271-70K is a grade used in primary cable sheathing and electrotechnical products, with a melt flow index of 0.40-0.65 g/10 min (190°C/5.0 kgf) and a density of 0.950-0.955 g/cm³ (20°C). Other stated values: Cracking resistance (ESCR) min 500 hours; Dielectric loss tangent (1 MHz) max 2·10⁻⁴; Electrical strength min 35 kV/mm. Typical specifications: Production method: Gas-phase polymerisation using Unipol technology; Processing method: Extrusion; Density (at 20°C), g/cm³ 0,950–0,955. KORKİMYA supplies Polyethylene 271-70K in Polyethylene is packed in 25 kg polyethylene or polypropylene bags and transported by rail and road.. Shelf life: 6 years from the date of manufacture.
For primary cable sheathing and various electrotechnical products.
Polyethylene 271-70K is a grade used in primary cable sheathing and electrotechnical products, with a melt flow index of 0.40-0.65 g/10 min (190°C/5.0 kgf) and a density of 0.950-0.955 g/cm³ (20°C). Other stated values: Cracking resistance (ESCR) min 500 hours; Dielectric loss tangent (1 MHz) max 2·10⁻⁴; Electrical strength min 35 kV/mm.
- Category
- Thermoplastic Polymers
Test Methods
ASTM D 1505 / ISO 1183 · ASTM D 1238 / ISO 1133 · ASTM D 638 / ISO 527 · ASTM D 150 · ASTM D 149 · ISO 4437
Frequently asked questions
Where is 271-70K used and how is it processed?
Polyethylene 271-70K is used in primary cable sheathing and electrotechnical products. Areas of use: Cable Sheathing Manufacturing, Wire and Cable Insulation, Electrotechnical Industry, Electrical Insulation. Processing method: Extrusion. Production method: Gas-phase polymerisation using Unipol technology.
What are the melt flow index and density of 271-70K?
The melt flow index of 271-70K is 0.40-0.65 g/10 min (190°C/5.0 kgf), tested to ASTM D 1238 / ISO 1133. Its density is 0.950-0.955 g/cm³ (20°C), tested to ASTM D 1505 / ISO 1183. Within-batch MFI deviation max ±10 %.
Which other values are stated for 271-70K?
Stated values for 271-70K: Number of foreign particles max 10 pcs.; Tensile yield strength min 22.6 (230) MPa (kgf/cm²); Tensile strength min 21.6 (220) MPa (kgf/cm²); Elongation at break min 700 %; Cracking resistance (ESCR) min 500 hours; Dielectric loss tangent (1 MHz) max 2·10⁻⁴; Dielectric permittivity (1 MHz) max 2.4; Electrical strength min 35 kV/mm; Mass fraction of volatile matter max 0.10 %; Mass fraction of ash max 0.05 %. Test methods: ASTM D 638 / ISO 527; ASTM D 150; ASTM D 149; ISO 4437.
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Last updated: 04/10/2026
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