Asahi Kasei Leona FR370 PA66 | UL 94 V-0
Material attribute: MCA flame retardant ; UL 94 V-0
Package: 25 KG/Bag
Process: Injection molding
Package: 25 KG/Bag
Process: Injection molding
Asahi Kasei Leona FR370 PA66 Description
Leona FR370 is a halogen-free polyamide 6,6 (nylon 66 or PA 66) produced by Asahi Kasei Engineering Plastics that offers highly effective flame retardancy. It achieves UL 94 V-0 flame retardancy and is commonly used in electronic connectors, switches, and electronic components.
Asahi Kasei Leona FR370 PA66 Advantage
- Flame retardant nylon, Asahi Kasei offers high-performance flame retardancy, achieving UL 94 V-0 flame retardancy at a test thickness of 0.75 mm, the Glow wire flammability index (GWFI) under 3 mm is 960°C, making it suitable for the production of thin-walled flame-retardant products; In addition, this material uses MCA halogen-free flame retardants, which do not release toxic chemicals during the flame-retardant process. It offers exceptional safety performance and is suitable for use in regions with stringent environmental regulations, such as Europe and the United States.
- Excellent electrical performance. Asahi Kasei FR370 PA66-FR has a comparative tracking index (CTI) of 600 V at 3 mm, a surface resistivity of 1.0 × 10¹³ Ω·cm, and a volume resistivity of 1.0 × 10¹⁴ Ω·cm, delivering high-level insulation performance that makes it ideal for use in electronic components and electrical equipment applications.
Why choose Baiyou as Asahi Kasei Leona FR370 PA66 pellets supplier?
- Leading flame retardant nylon supplier (FR PA 66 material) , 20+ years of experience in plastic product manufacturing and chemical raw material import and export
- Fastest Arrival, with warehouses in multiple ports
- 1,000+ types of resins are available, and we have cooperated with large petrochemical groups for 30+ years
- Free Samples for production testing
- Wholesale price, even a piece of goods is based on the wholesale price
Key Attributes
| Asahi Kasei Leona FR370 PA66 | ||||
| Product information | ||||
Manufacturer | Asahi Kasei engineering plastics | |||
Other Certificates | MSDS | |||
Part Marking Code | >PA66-FR material< | |||
Color | Natural color | |||
Material Shape | Nylon 66 Pellets | |||
Process | Injection molding | |||
Features | ·No halogen ·Flame retardant ·UL 94 V-0 | |||
Application | ·Connector ·Electrical / Electronic applications ·Electrical parts ·Switches | |||
| Physical properties | Standard | Value | Unit | |
| Melt Density / Specific gravity | ASTM D792 | 1.16 | g/cm³ | |
| Molding shrinkag, flow | Internal method | 0.90-1.6 | % | |
| Water absorption equilibrium, 23% 50% RH | ISO 62 | 2.3 | % | |
| Hardness | Standard | Dry | Conditioned | Unit |
| Rockwell hardness, M-Scale | ASTM D785 | 85 | 55 | |
| Rockwell hardness, R-Scale | ASTM D785 | 120 | 110 | |
| Mechanical behavior | Standard | Dry | Conditioned | Unit |
| Tensile Modulus 23℃ | ISO 527-1 | 3600 | 1600 | MPa |
| Tensile stress yield, 23℃ | ISO 527-2 | 83 | 55 | MPa |
| Tensile stress | ASTM D638 | 80 | - | MPa |
| Tensile strain yield, 23℃ | ISO 527-2 | 4.5 | 22 | % |
| Tensile strain break, 23℃ | ISO 527-2 | 415 | >50 | % |
| Tensile strain break | ASTM D638 | 7.0 | 70 | % |
| Flexural modulus | ASTM D790 | 3300 | 1300 | MPa |
| Flexural modulus, 23℃ | ISO 178 | 3600 | 1500 | MPa |
| Flexural strength | ASTM D790 | 128 | 56 | MPa |
| Flexural strength, 23℃ | ISO 178 | 124 | 54.1 | MPa |
| Taber abrassion resistance, 1000 cycles | ASTM D1044 | - | 7 | mg |
| Impact | Standard | Dry | Conditioned | Unit |
| Charpy notched impact strength | ISO 179 | 4.0 | 6.0 | MPa |
| Charpy unnotched impact strength | ISO 179 | 58 | No break | kJ/㎡ |
| Notched Izod impact | ISO 179 | 29 | 58 | J/m |
| Thermal | Standard | Value | Unit | |
| Deflection temperature, under 0.45 MPa, unannealed | ASTM D648 | 240 | °C | |
| Deflection temperature, under 0.45 MPa, unannealed | ISO 75-2/B | 239 | °C | |
| Deflection temperature, under 1.8 MPa, unannealed | ASTM D648 | 80 | °C | |
| Deflection temperature, under 1.8 MPa, unannealed | ISO 75-2/B | 78 | °C | |
| Electrical | Standard | Value | Unit | |
| Surface resistivity | ASTM D257 | 1.0E+13 | ohms | |
| Volume resistivity | ASTM D257 | 1.0E+14 | ohms·cm | |
| Dielectric strength | ASTM D149 | 31 | kV/mm | |
| Comparative tracking index | IEC 60112 | 600 | V | |
| Flammability | Standard | Value | Unit | |
| Flame rating, 0.75mm | UL94 | V-0 | ||
| Glow wire flammability index, 3.0mm | IEC 60695-2-12 | 960 | °C | |
| Oxygen index | ASTM D2863 | 36 | % | |
| Flammability | Standard | Value | Unit | |
| Drying temperature | 80-90 | °C | ||
| Drying time | 2-3 | hr | ||
| Processing temperature | 265-275 | °C | ||
| Mold temperature | 75-85 | °C | ||
⚠️The technical data sheet (TDS) of Asahi Kasei Leona FR370 flame retardant nylon material from Asahi Kasei engineering plastics, if there are differences, please refer to the official website of Asahi Kasei.
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Quantity (tonnes) | 1-100 | 100-300 | >300 |
Lead time (days) | 7-10 | 10-15 | To be negotiated |

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