Product Information
Dec 2019
Ultramid® A3L HP BK20465
Polyamide 66
 

 
Product Description
Ultramid A3L HP BK20465 is an unreinforced, heat stabilized, impact modified, high flow, nylon 66 for injection molding. This grade has excellent flow and improved ambient and low temperature toughness.

Applications
Typical applications include fasteners and clamps.

PHYSICAL ISO Test Method Property Value
Density, g/cm³ 1183 1.10
MECHANICAL ISO Test Method Dry Conditioned
Tensile Modulus, MPa 527    
    23C 2,440 1,370
Tensile stress at yield, MPa 527    
    23C 63 44
Tensile stress at break, MPa 527    
    23C 49 41
Tensile strain at yield, % 527    
    23C 6.2 25
Nominal strain at break, % 527    
    23C 28 >50
Flexural Strength, MPa 178    
    23C 85 45
Flexural Modulus, MPa 178    
    23C 2,280 1,150
IMPACT ISO Test Method Dry Conditioned
Izod Notched Impact, kJ/m2 180    
    -40C 12 9.4
    23C 18 29
Charpy Notched, kJ/m2 179    
    -30C 14 11
    23C 19 28
Charpy Unnotched, kJ/m2 179    
   -30C NB NB
    23C NB NB
THERMAL ISO Test Method Dry Conditioned
Melting Point, C 3146 260 -
HDT A, C 75 70 -
HDT B, C 75 196 -
UL RATINGS UL Test Method Property Value
Flammability Rating, 0.75mm UL94 HB
Relative Temperature Index, 0.75mm UL746B  
    Mechanical w/o Impact, C 110
    Mechanical w/ Impact, C 105
    Electrical, C 140
Flammability Rating, 3.0mm UL94 HB
Relative Temperature Index, 3.0mm UL746B  
    Mechanical w/o Impact, C 110
    Mechanical w/ Impact, C 105
    Electrical, C 140

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 prCess. For unopened bag/box, dry at 60C (140F) for 1-2 hours. For material exposed to the atmosphere, if additional drying is needed, dry at 66C (150F) or until the moisture level is between 0.04 - 0.20%.

Typical Profile
Melt Temperature: 288-305C (550-581F)
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.


Note
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.
 


  BASF Corporation
Engineering Plastics
1609 Biddle Avenue
Wyandotte, MI 48192
General Information: 800-BC-RESIN
Technical Assistance: 800-527-TECH (734-324-5150)
Web address: http://www.plasticsportal.com/usa