Heavy Metal High Density Tungsten Alloy Screws for Air Terminations
Heavy Metal High Density Tungsten Alloy Screw for Air Terminations
Air terminations play a critical role in lightning protection systems, capturing the full lightning strike current and safely channeling it through the conductor network to protect buildings and substations.
Furse air termination products are specifically engineered to provide highly effective protection against the risks and consequences of direct lightning strikes. Complete lightning strike protection is achieved with Furse air termination systems.
Furse air rods are manufactured from highly-conductive, hard-drawn copper or aluminum, providing excellent, durable strike points for lightning. The comprehensive range of air rod bases, conductor fasteners, and earth clamps are manufactured from high-quality copper or aluminum alloys, ensuring high conductivity is maintained throughout the air termination system. These components are robust enough to withstand years of exposure on roof lines.
All components connect via copper or aluminum conductors, which provide the low-resistance path for lightning current - from the strike point safely to ground.
Normal Tungsten Nickel Iron Alloy Properties
| Chemical Component (%) |
Density (g/cm³) |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
HRC Max (HRC) |
Magnetic |
| W: 90, NiFe: Remain |
16.85-17.25 |
≥758 |
≥517 |
≥5 |
32 |
Yes |
| W: 92.5, NiFe: Remain |
17.15-17.85 |
≥758 |
≥517 |
≥5 |
33 |
Yes |
| W: 95, NiFe: Remain |
17.75-18.35 |
≥724 |
≥517 |
≥3 |
34 |
Yes |
| W: 97, NiFe: Remain |
18.25-18.85 |
≥689 |
≥517 |
≥2 |
35 |
Yes |
High Performance Sintering Tungsten Nickel Iron Alloy Properties
| Density (g/cm³) |
Tensile Strength (MPa) |
Yield Strength Rp0.2 (MPa) |
Elongation A (%) |
Hardness (HRC) |
Magnetic |
| 16.85-17.25 |
900 |
600 |
15 |
≤32 |
Yes |
| 17.15-17.85 |
900 |
600 |
15 |
≤33 |
Yes |
| 17.75-18.35 |
850 |
600 |
10 |
≤34 |
Yes |
| 18.25-18.85 |
800 |
600 |
7 |
≤35 |
Yes |
Tungsten Nickel Copper Alloy Properties
| Chemical Component |
Density (g/cm³) |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation Rate (%) |
Hardness (HRC) |
Magnetic |
| W: 90, NiCu: Remain |
16.85-17.25 |
≥648 |
≥517 |
≥2 |
32 |
No |
| W: 92.5, NiCu: Remain |
17.15-17.85 |
≥648 |
≥517 |
≥2 |
33 |
No |
| W: 95, NiCu: Remain |
17.75-18.35 |
≥648 |
≥517 |
≥1 |
34 |
No |
After Sales Service
Zhuzhou Sanxin Cemented Carbide Production Co., Ltd. provides the following commitments:
- Each factory blade includes a digital security identification code to ensure authenticity
- Product delivery completed within one working day after order placement, primarily via express delivery
- All carbide cut legs blades include detailed usage instructions
- Comprehensive satisfaction guarantee including replacement, return, and technical guidance services
- Commitment to quality production and business integrity
- Customized cut legs blade usage solutions available
