Our Ultra-Pure Nickel Capillaries are a total game-changer for nuclear and defense applications, and we’re thrilled to offer them. Made from nickel with 99.99% purity or higher, these capillaries are all about delivering top-tier performance where precision and reliability are non-negotiable.
Why are these capillaries such a big deal? It’s all about the purity. With almost no impurities, they’re perfect for handling radioactive materials or working in super sensitive environments like nuclear reactors or defense systems. They resist corrosion like nobody’s business, even when exposed to harsh radiation or chemicals, so you know they’ll hold up under pressure.
Grade | Ni+Co | Cu | Si | Mn | C | Mg | S | P | Fe |
N4 | 99.9 | ≤0.015 | ≤0.03 | ≤0.002 | ≤0.01 | ≤0.01 | ≤0.001 | ≤0.001 | ≤0.04 |
N6 | 99.5 | 0.10 | 0.10 | 0.05 | 0.10 | 0.10 | 0.005 | 0.002 | 0.10 |
Ni201 | ≥99.9 | ≤0.25 | ≤0.35 | ≤0.35 | ≤0.02 | / | ≤0.01 | / | ≤0.40 |
Ni200 | ≥99.6 | ≤0.25 | ≤0.35 | ≤0.35 | ≤0.15 | / | ≤0.01 | / | ≤0.40 |
CHEMICAL COMPOSITION |
Alloy | Ni+Co % | Mn % | Fe % | Si % | Cu % | C % | S % |
Nickel 201 | Min 99.2 | Max 0.35 | Max 0.4 | Max 0.35 | Max 0.25 | Max 0.02 | Max 0.01 |
Nickel 200 | Min 99 | Max 0.35 | Max 0.4 | Max 0.35 | Max 0.25 | Max 0.15 | Max 0.01 |
Physical Data |
Density | Specific Heat | Electrical Resistivity | Melting Point | Thermal Conductivity | Mean Coeff Thermal Expansion |
8.89g/cm3 | 0.109(456 J/kg.℃) | 0.096×10-6ohm.m | 1435-1446℃ | 70.2 W/m-K | 13.3×10-6m/m.℃ |
We’re also stoked about their versatility. These capillaries are great for precision instrumentation—think cooling systems or sensors in military gear. They’ve got awesome thermal conductivity, so they transfer heat efficiently, and they stay rock-solid in extreme temperatures, from freezing cold to 600°C. That kind of stability is a must for nuclear and defense setups.
The industry’s really focusing on safety and precision right now, with nuclear power pushing for cleaner energy and defense needing fail-proof tech for national security. Our Ultra-Pure Nickel Capillaries fit right into those trends, giving engineers the reliable, high-performance materials they need. As global demand for nuclear energy and advanced defense systems grows, we’re ready to support those critical missions.
With our Ultra-Pure Nickel Capillaries, you’re getting a product that’s pure, durable, and built for the toughest nuclear and defense challenges. It’s the kind of material you can trust when the stakes are sky-high.

About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQ:
1、What are Ultra-Pure Nickel Capillaries made of?
They’re crafted from ultra-pure nickel (99.99% purity or higher), minimizing impurities for sensitive applications.
2、Why are they used in nuclear and defense industries?
Their purity and resistance to corrosion make them ideal for handling radioactive materials and harsh conditions.
3、Can they withstand radiation exposure?
Yes, ultra-pure nickel is highly resistant to radiation damage, ensuring reliability in nuclear settings.
4、What specific applications do they have in defense?
They’re used in precision sensors, cooling systems, and instrumentation for military equipment.
5、How do they perform in extreme temperatures?
They maintain stability and performance from cryogenic levels to high temperatures, up to 600°C.
6、Are these capillaries easy to integrate into systems?
Absolutely, their seamless design and precision manufacturing make integration straightforward.
7、What makes ultra-pure nickel different from standard nickel?
Ultra-pure nickel has significantly fewer impurities, ensuring better performance in sensitive environments.
8、How long do these capillaries last in nuclear applications?
With their durability and corrosion resistance, they’re built for long-term use, even in extreme conditions.