Questions & Answers
Polybutylene terephthalate rods are made from: Ultradur, Pocan, Crastin, Valox, PBT: GF50, Natural, GF30, GF15.
Polybutylene terephthalate tubes are made from: Novadur 5010R, PBT, Duranex 3300, 2000, Celanex 2004, 2002, Toraycon 1401X06, 1101G, Crastin S600F30, S600F20, SK605, Pocan B4235, B3215, B1305, Valox 325, 315, 310, Ultradur B6550, B4520, B4500.
Polybutylene terephthalate sheets are made from: Crastin SK605, Pocan B1305, Novadur 5010R, Duranex 2000, Celanex 2002, Valox 315, 310, Ultradur B6550, B4520, B4500.
ISO 7792-1 - Thermoplastic polyesters. This standard defines tensile modulus, viscosity, and property classification. It also establishes requirements for processing conditions, coloring, additives, and fillers. This standard is often used as a "data sheet" for PBT pellets, which are then used to produce rods.
ISO 20028-1 is the basis for specifications and designation system for thermoplastic polyesters for extrusion and injection molding. This standard establishes the structure of the material's technical specification, a classification system based on the main physical and mechanical properties, methods for indicating the area of application, filler coding methods, material identification rules, and a polyester designation system.
ASTM D6100 is a standard for molded, extruded, and cast polyacetal blanks. This standard covers inspection and testing methods, manufacturing quality, material requirements, dimensions and tolerances, product labeling, permissible porosity, surface quality, mechanical properties, and product classification.
ISO 527 is a standard that establishes tensile testing methods for plastics and procedures for determining their mechanical properties. This standard covers tensile strength, maximum load, specimen type, test speed and temperature, elastic modulus, and plasticity characteristics.
Polybutylene terephthalate rod weight tables
| Diameter, mm | Weight of 1 m, kg |
| 10 | 0,103 |
| 15 | 0,231 |
| 20 | 0,412 |
| 25 | 0,643 |
| 30 | 0,926 |
| 40 | 1,646 |
| 50 | 2,572 |
| 60 | 3,702 |
| 80 | 6,581 |
| 100 | 10,289 |
Table of physical properties of polybutylene terephthalate rods
| Indicator | Meaning |
| Density | 1,30–1,33 g/cm³ |
| Water absorption (24 hours) | 0,08–0,12 % |
| Friction coefficient | 0,25–0,40 |
| Thermal conductivity | 0,22–0,30 Wt/(m·К) |
| Shrinkage | 1,5–2,2 % |
Table of mechanical properties of polybutylene terephthalate rods
| Property | Unfilled PBT | PBT GF30 |
| Tensile strength, MPa | 50–65 | 110–140 |
| Modulus of elasticity, MPa | 2200–2800 | 7000–11000 |
| Elongation at break, % | 5–15 | 2–4 |
| Hardness Shore D | 78–85 | 85–90 |
| Impact strength, kJ/m² | 4–8 | 6–12 |
Weight table of polybutylene terephthalate tubes
| Outer diameter × inner diameter, mm | Weight of 1 m, kg |
| 20 × 10 | 0,31 |
| 25 × 15 | 0,41 |
| 30 × 20 | 0,51 |
| 40 × 20 | 1,24 |
| 50 × 25 | 1,94 |
| 60 × 30 | 2,8 |
| 80 × 40 | 4,98 |
| 100 × 50 | 7,79 |
| 120 × 60 | 11,22 |
| 150 × 75 | 17,54 |
| 200 × 100 | 31,53 |
Table of weights of polybutylene terephthalate sheets 1000×2000 mm
| Thickness, mm | Sheet weight, kg |
| 3 | 7,86 |
| 5 | 13,1 |
| 6 | 15,72 |
| 8 | 20,96 |
| 10 | 26,2 |
| 12 | 31,44 |
| 15 | 39,3 |
| 20 | 52,4 |
| 25 | 65,5 |
| 30 | 78,6 |
| 40 | 104,8 |
| 50 | 131 |
| 60 | 157,2 |
| 80 | 209,6 |
| 100 | 262 |