PB-1 Video
Benefits of PB-1 for pressure piping systems
What does a higher SDR class mean in practice?
- Get to know Polybutene-1 for use in pressurized hot and cold water pipe systems
- Learn about the extraordinary characteristics of this most technically advanced thermoplastic material
- What are the benefits of using PB-1 in piping systems versus alternative thermoplastic materials?
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Opportunities to reduce the operational costs over the lifetime of a piping system
Material Properties
The following table illustrates the physical, mechanical and thermal properties of Polybutene-1. The values shown are typical mid-range figures and should not be considered as a specification - in fact, several different grades of Polybutene-1 are produced with properties tailored to satisfy different applicational requirements.
| Material Properties | Method | Unit |
Akoalit PB 4237 |
Akoafloor PB R 509 |
|---|---|---|---|---|
| Physical Properties | ||||
| Melt Flow Rate MRF 190°C/2.16 kg | ISO 1133 | dg/min | 0.4 | 0.7 |
| Density | ISO 1183 | g/cm3 | 0.925 | 0.925 |
| Hardness Shore D | ISO 868 | - | 60 | 60 |
| Mechanical Properties | ||||
| Tensile strength at yield | ISO R 527 | MPa | 20 | 18 |
| Tensile strength at break | ISO R 527 | MPa | 35 | 38 |
| Elongation at break | ISO R 527 | % | 300 | 330 |
| Flexural Elastic Modulus | ISO R 173 | MPa | 450 | 330 |
| Notched Impact Strength at 20°C | ISO 180 | kJ/m2 | 20 | 65 |
| Notched Impact Strength at 0°C | ISO 180 | kJ/m2 | 7 | 25 |
| Thermal Properties | ||||
| Melting temperature range | DSC (a) | °C | 127-129 | 124-126 |
| Vicat Softening Temperature | ISO 306 | °C | 120 | 117 |
| Coefficient of linear thermal expansion | ASTM D696 | mm/m.K | 0.13 | 0.13 |
| Thermal conductivity (30-70°C) | ASTM E1530 | W/m.K | 0.19 | 0.19 |
| Glass transition temperature | DMTA (б) | °C | -16 | -18 |
| Specific Characteristics | ||||
|
Wet abrasion (Sand Slurry Test, 23°C, 100h) |
% |
2.5 |
1.5 |
|
(a) Differential Scanning Calorimetry
(b) Dynamic Mechanical Thermal Analysis
Polybutene is often referred to as Polybutene-1, Polybutylene, PB-1 or PB.
Polybutene is not sold by PBPSA members for use in pipe applications intended for use in North America, and those parties require their customers or distributors not to sell products made from Polybutene into pipe applications for North America.
Polybutene is not sold by PBPSA members for use in pipe applications intended for use in North America, and those parties require their customers or distributors not to sell products made from Polybutene into pipe applications for North America.
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