PA6 陶氏杜邦73G30HSL BK416
PA6 DOW‑DuPont 73G30HSL BK416 Resin
Material Introduction: PA6 DOW‑DuPont 73G30HSL BK416 is a 30% glass‑fiber‑reinforced heat‑stabilized PA6 material. It delivers high strength, high rigidity, good heat resistance and dimensional stability for demanding engineering applications.
Main Applications
Automotive industry: Engine peripheral components such as covers, intake manifolds, heat‑resistant structural parts, bearings, gears, pulleys.
Electronic & electrical: Power‑tool housings, connectors, coil bobbins, circuit‑breaker housings and other high‑strength & heat‑resistant parts.
Industrial parts: Bearing cages, transmission components, wear‑resistant bushings, mechanical housings and related components.
Performance Parameters
| Performance Category | Test Standard | Unit | Typical Value | Remarks & Interpretation |
|---|---|---|---|---|
| Physical Properties | ||||
| Density | ISO 1183 | g/cm³ | 1.36 | 30% glass‑fiber reinforced PA6, black grade |
| Water Absorption (23℃,24h,2mm) | ISO 62 | % | 6.3 | ‑ |
| Equilibrium Water Absorption (23℃,50%RH,2mm) | ISO 62 | % | 1.9 | ‑ |
| Mechanical Properties | ||||
| Tensile Modulus | ISO 527‑2 | MPa | 10000 (dry) / 6000 (conditioned) | ‑ |
| Tensile Strength (Break) | ISO 527‑2 | MPa | 190 (dry) / 120 (conditioned) | ‑ |
| Elongation at Break | ISO 527‑2 | % | 3.5 (dry) / 6.0 (conditioned) | ‑ |
| Flexural Modulus | ISO 178 | MPa | 8200 | ‑ |
| Impact Performance | ||||
| Charpy Notched Impact Strength (23℃) | ISO 179/1eA | kJ/m² | 16 (dry) / 23 (conditioned) | ‑ |
| Charpy Un‑notched Impact Strength (23℃) | ISO 179/1eU | kJ/m² | 100 | ‑ |
| Thermal Properties | ||||
| Melting Point (Tm) | ISO 11357‑3 | ℃ | 221 | ‑ |
| HDT (1.8 MPa) | ISO 75‑2/A | ℃ | 204 | High heat‑resistance for reinforced grade |
| HDT (0.45 MPa) | ISO 75‑2/B | ℃ | 220 | ‑ |
| Coefficient of Linear Thermal Expansion‑Flow Direction | ISO 11359‑2 | cm/cm/℃ | 2.6E‑5 | ‑ |
| Coefficient of Linear Thermal Expansion‑Cross Direction | ISO 11359‑2 | cm/cm/℃ | 7.5E‑5 | Obvious anisotropy |
| Flammability | ||||
| UL94 Rating (1.5 mm) | UL 94 | ‑ | HB | ‑ |
Injection Molding Parameters
| Processing Item | Recommended Range / Condition | Notes & Explanations |
|---|---|---|
| Drying Treatment | Hot‑air drying above 80℃ for at least 16 h; if exposed to air＞8 h, vacuum‑dry at 105℃ for ≥8 h. | Critical operation. Keep moisture ≤0.2% to avoid hydrolysis, bubbles, silver streaks and mechanical‑property loss. Use immediately after drying or seal properly for heat preservation. |
| Melt Temperature | 250‑280℃ for glass‑fiber reinforced grades. | Avoid temperature＞300℃ and long‑time residence to prevent material degradation. |
| Mold Temperature | 80‑90℃. | Higher mold temperature improves crystallinity, mechanical properties and surface appearance. For glass‑fiber‑reinforced materials, mold temperature shall be above 80℃. High mold temperature is also recommended for thin‑wall or long‑flow‑path parts. |
| Injection Pressure | 750‑1250 bar. | Adjust according to product and mold design. Glass‑fiber‑reinforced grade has poorer flowability; appropriately higher injection pressure & speed may be required. |
| Injection Speed | Medium‑high speed. | Fast filling benefits cavity filling; excessive speed may cause uneven glass‑fiber orientation and poor venting. |
| Back Pressure | 0.5‑0.7 MPa (5‑7 kgf/cm²). | Proper back‑pressure helps melt homogenization and venting. |
| Screw Speed | Medium speed. | Avoid excessive shear force to prevent glass‑fiber damage and material overheating. |
| Runner & Gate | Gate size ≥0.5 × part wall thickness. For hot‑runner system, gate dimension can be smaller than conventional runner. Minimum diameter for submarine gate ≥0.75 mm. | PA6 solidifies fast; gate design and location are critical for filling and glass‑fiber distribution. |
| Molding Shrinkage | Flow direction:0.20%; Cross direction:0.60%. | Obvious anisotropy; special attention required during mold design. |
| Shutdown Notice | Purge barrel with PE / PP of good thermal stability after production or shutdown to prevent carbonized nylon residue. Turn off heating system for long‑term shutdown. | ‑ |
Disclaimer: All above data is for reference only.
