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| Product Description |
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Ultramid A3L HP is an unreinforced, impact modified, high flow, nylon 66
for injection molding. This grade has excellent flow and improved ambient and
low temperature toughness.
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| Applications |
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Typical applications include fasteners and clamps.
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| PHYSICAL |
ISO Test Method |
Property Value |
| Density, g/cm³ |
1183 |
1.10 |
| MECHANICAL |
ISO Test Method |
Dry |
Conditioned |
| Tensile Modulus, MPa |
527 |
|
|
| 23°C |
|
2,440 |
- |
| Tensile stress at yield, MPa |
527 |
|
|
| 23°C |
|
63.5 |
- |
| Tensile strain at yield, % |
527 |
|
|
| 23°C |
|
6.2 |
- |
| Nominal strain at break, % |
527 |
|
|
| 23°C |
|
28 |
- |
| Flexural Modulus, MPa |
178 |
|
|
| 23°C |
|
2,280 |
- |
| IMPACT |
ISO Test Method |
Dry |
Conditioned |
| Izod Notched Impact, kJ/m² |
180 |
|
|
| 23°C |
|
18 |
- |
| -40°C |
|
12 |
- |
| Charpy Notched, kJ/m² |
179 |
|
|
| 23°C |
|
19 |
- |
| -30°C |
|
14 |
- |
| THERMAL |
ISO Test Method |
Dry |
Conditioned |
| Melting Point, °C |
3146 |
260 |
- |
| HDT A, ° C |
75 |
70 |
- |
| Processing Guidelines |
|
Material Handling
Nylon 66 materials must be properly dried in order to provide parts with optimum strength and toughness. Nylon 66 materials are hygroscopic and will become degraded by excessive moisture during the injection molding process. For unopened bag/box, dry at 140F (60C) for 1-2 hours. For material exposed to the atmosphere, if additional drying is needed, dry at 150F (66C) or until the moisture level is between 0.04 - 0.20%.
Typical Profile
Melt Temperature: 288 – 305C (550 – 580F)
Mold Temperature: 60 – 100C (140 – 212F)
Injection Pressure: 35 – 125 MPa (5000 – 18000 psi)
Back Pressure: 0 – 0.35 MPa (0 – 50 psi)
Screw RPM 40 – 80
Screw Compression Ratio:3:1 – 4:1
Mold Temperatures
This product can be processed over a wide range of mold temperatures; however, for applications where aesthetics are critical, a mold surface temperature of 60-100C (140-212F) is recommended.
Pressures
Injection pressure controls the filling of the part and should be applied for 90% of ram travel. Packing pressure affects the final part and can be used effectively in controlling sink marks and shrinkage. It should be applied and maintained until the gate area is completely frozen off.
Fill Rate
Fast fill rates are recommended to ensure uniform melt delivery to the cavity and prevent premature freezing.
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| Note |
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Although all statements and information in this publication are believed to be accurate and reliable, they are presented gratis and for guidance only, and risks and liability for results obtained by use of the products or application of the suggestions described are assumed by the user. NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS DESCRIBED OR DESIGNS, DATA OR INFORMATION SET FORTH. Statements or suggestions concerning possible use of the products are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent. The user should not assume that toxicity data and safety measures are indicated or that other measures may not be required. |
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