Is UHMW lighter than aluminum?
Ultra-high-molecular-weight polyethylene (UHMW-PE or simply UHMW) is a high-performance plastic known for its low coefficient of friction. Its English name refers to its molecular structure. “UHMW has a density of approximately 940 kg/m3, about 3 times lighter than aluminum.”
What is the yield strength of UHMWPE?
UHMW Polyethylene Material Properties
| Property | Metric | units |
|---|---|---|
| Density | 931 – 949 | lb/in^3 |
| Mechanical | ||
| Yield Strength | 2.14e7 – 2.76e7 | ksi |
| Tensile Strength | 3.86e7 – 4.83e7 | ksi |
What is the durometer of UHMW?
D2240 68
UHMW (Ultra High Molecular Weight Polyethylene)
| Specification | Test | Value |
|---|---|---|
| Hardness, Durometer (Shore “D” scale) | D2240 | 68 |
| Hardness, Rockwell (Scale as noted) | D785 | |
| Izod Impact, Notched @ 73°F | D256 Type A | No Break |
| Coefficient of Friction (Dry vs Steel) Static | PTM55007 | .15-.20 |
Which is stronger HDPE or UHMW?
About UHMW and HDPE This last property makes UHMW a preferred material for parts in sliding applications, those involving rough surfaces, or any situation where overcoming friction is important. HDPE (High Density Polyethylene) has a somewhat lower tensile strength than UHMW.
Is HDPE heavier than UHMW?
Key Difference – UHMW vs HDPE The key difference between UHMW and HDPE is that UHMW contains long polymer chains with very high molecular weights whereas HDPE has a high strength-to-density ratio.
Is Dyneema the same as Uhmwpe?
Our high performance UHMWPE produced by Southern Ropes is essentially the same as Dyneema Rope without the brand name. It’s chemically identical but with a slightly different braid that has no impact on the properties or strength of the line.
Does UHMW expand and contract?
Although TIVAR® never actually melts, it will begin to lose its excellent properties at a temperature of 180 degrees F (82 degrees C). TIVAR® will generally perform very well down to cryogenic temperatures, but like other plastics, it will expand and contract with variations in temperatures.
Is UHMW a hard or soft plastic?
UHMW (ultra high molecular weight polyethylene) is an extremely tough plastic with high abrasion and wear resistance.
Is HDPE impact resistant?
High-density polyethylene (HDPE) HDPE is a durable, versatile thermoplastic that offers fantastic impact resistance and tensile strength. Since its molecules are packed together so tightly, HDPE boasts incredible toughness and rigidity. HDPE is also resistant to chemicals, corrosion, absorption, and abrasion.