Specify the real requirement
Grade, condition, geometry, finish and acceptance evidence should travel together in the MFG SOLUTION review.
Connect material to process
Use the guide to compare machinability, performance, availability and downstream operations before release.
Release measurable evidence
Inspection, certificates and traceability confirm the selected route on the actual part and revision.
High-Density Polyethylene (HDPE) Datasheet
Chemical Structure:
- Polymer Type: Thermoplastic polymer
Physical Properties:
- Density: 0.95 – 0.97 g/cm³
- Melting Point: 120 – 130°C (248 – 266°F)
- Water Absorption: < 0.01%
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength | 28 – 34 MPa (4,000 – 4,900 psi) |
| Yield Strength | 18 – 26 MPa (2,600 – 3,800 psi) |
| Elongation at Break | 10 – 20% |
| Young’s Modulus | 900 – 1,200 MPa (130,000 – 174,000 psi) |
| Hardness (Rockwell R) | 50 – 65 |
Thermal Properties:
- Glass Transition Temperature (Tg): -125°C (-193°F)
- Heat Deflection Temperature (HDT): 49 – 80°C (120 – 176°F)
- Coefficient of Thermal Expansion: 100 – 200 x 10^(-6) /°C
Electrical Properties:
- Dielectric Strength: 17 – 50 kV/mm
- Volume Resistivity: 10^15 – 10^18 ohm·cm
Chemical Resistance:
- Resistant to acids, bases, and a wide range of chemicals.
- Sensitive to some solvents, such as aromatic hydrocarbons.
Low-Density Polyethylene (LDPE) Datasheet
Chemical Structure:
- Polymer Type: Thermoplastic polymer
Physical Properties:
- Density: 0.91 – 0.93 g/cm³
- Melting Point: 105 – 115°C (221 – 239°F)
- Water Absorption: < 0.01%
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength | 13 – 17 MPa (1,900 – 2,500 psi) |
| Yield Strength | 7 – 13 MPa (1,000 – 1,900 psi) |
| Elongation at Break | 300 – 700% |
| Young’s Modulus | 140 – 220 MPa (20,000 – 32,000 psi) |
| Hardness (Shore D) | 42 – 58 |
Thermal Properties:
- Glass Transition Temperature (Tg): -125°C (-193°F)
- Heat Deflection Temperature (HDT): 30 – 50°C (86 – 122°F)
- Coefficient of Thermal Expansion: 100 – 150 x 10^(-6) /°C
Electrical Properties:
- Dielectric Strength: 18 – 25 kV/mm
- Volume Resistivity: 10^15 – 10^18 ohm·cm
Chemical Resistance:
- Resistant to acids, bases, and a wide range of chemicals.
- Sensitive to some solvents, such as aromatic hydrocarbons.
Additional Features:
- Machinability: Both HDPE and LDPE are easily machined and fabricated.
- Weldability: Suitable for various welding methods.
- UV Resistance: HDPE has better UV resistance compared to LDPE.
Applications:
- HDPE: Pipes, bottles, containers, toys, and various industrial applications.
- LDPE: Packaging films, squeeze bottles, agricultural films, and various consumer goods.