The following table summarizes the key temperature characteristics of both materials for a quick comparison.
| Material Type | Heat Deflection Temperature (HDT) | Continuous Use Temperature Range | Key Details |
| ABS | 93°C – 118°C
|
-40°C to 100°C
|
Annealing can increase HDT by ~10°C. Standard ABS is rated for ~80-85°C, while high-heat grades can withstand 105-115°C.
|
| PC/ABS Alloy | 90°C – 130°C (Varies by grade/load)
|
-40°C to 115°C
(up to 120°C for some grades)
|
Performance is a balance between PC (125-135°C) and ABS. High-temperature modified grades can have an HDT of 140-180°C.
|
Detailed Explanation
ABS (Acrylonitrile Butadiene Styrene):
ABS performs stably within a temperature range of -40°C to 100°C. It maintains a certain level of toughness even at -40°C. Its heat deflection temperature typically falls between 93°C and 118°C. It’s important to note that annealing the manufactured product can increase this heat deflection temperature by approximately 10°C. Standard ABS is generally rated for service temperatures of 80-85°C, while specially formulated high-heat ABS can withstand 105-115°C.
PC/ABS Alloy:
This blend combines the properties of Polycarbonate (PC) and ABS. Its temperature resistance is intermediate between the two, with a typical continuous use range of about -40°C to 115°C, and up to 120°C for some grades. The exact properties depend on the ratio of PC to ABS; a higher PC content generally improves heat resistance. Standard PC/ABS has a heat deflection temperature ranging from 100°C to 130°C. Specially modified, high-temperature PC/ABS grades can achieve a much higher heat deflection temperature, ranging from 140°C to 180°C.
Application Guidance
Choose ABS for applications like appliance housings, automotive interior parts, and toys where the operational temperature requirements are not extreme.
Choose PC/ABS for applications that demand higher heat resistance and impact strength, such as automotive dashboards, electronic device enclosures, and consumer electronics components.
I hope this detailed information is helpful. If you have a specific application in mind, I may be able to offer more tailored advice.