 |
|
||||
|
| TOP＞TECHNICAL INFORMATION＞THERMO EXPANSION OF METAL AND PLASTIC |
| TECHNICAL INFORMATION |
| THERMO EXPANSION OF METAL AND PLASTIC |
| LINEAR THERMO EXPANSION COEFFICIENT |
| Classification | Material | Linear thermo expansion coefficient α（×10-6/℃） |
|
| METAL・ALLOY | Hard metal alloy | 5.5 | |
| Stainless steel | SUS430 | 10.4 | |
| Carbon steel | 11.0 | ||
| High-speed steel | 11.2 | ||
| Steel | 12.1 | ||
| Gold | 14.2 | ||
| Copper | 16.6 | ||
| Stainless steel | SUS304 | 17.3 | |
| Brass | 19.0 | ||
| Aluminum | 23.0 | ||
| PLASTIC | PET | 15.0 | |
| PPS GF30％ | 22.0 | ||
| ABS GF30％ | 28.0 | ||
| PPS un-reinforced | PPS | 40.0～49.0 | |
| PEEK | PEEK | 40.0～47.0 | |
| Fluororesin | ETFE | 50.0～90.0 | |
| Polycarbonate | PC | 70.0～80.0 | |
| POM Copolymer | POM | 70.0～130.0 | |
| Nylon | PA6 | 80.0 | |
| High-density polyethylene | PE-HD | 100.0～120.0 | |
| Fluororesin | PTFE | 100.0 | |
| POM Homopolymer | POM | 100.0～122.0 | |
| Polypropylene | PP | 110.0～120.0 | |
| Polyethylene | 130.0～150.0 | ||
| CERAMIC | Alumina | 8.0～9.0 | |
| Zirconia | 8.7～11.0 | ||
| Diamond | 1.1 | ||
| OTHERS | Glass | 9.0 | |
| Rubber | 110.0 | ||
| Variation of linear thermo expansion of metal and plastic △L(mm) |
| Calculation Formula：△L＝L×α×△T L：Length of material(m) α：Linear thermo expansion coefficient(×10－6/℃) △T：Difference in temperature(℃) |
 |