Our CuNi44 bar is a rock star for thermocouple manufacturing, built to deliver precision and reliability in the toughest conditions. This copper-nickel alloy, with 44% nickel and sometimes a pinch of manganese, is our top choice for applications where accurate temperature measurement and durability are critical.

What makes CuNi44 bar shine is its thermoelectric performance. It’s a go-to for Type T thermocouples, offering stable, accurate temperature readings in everything from aerospace turbines to industrial furnaces. With a thermal stability of up to 500°C, it handles high-heat environments like a pro, making it perfect for precision resistors and other electrical components too. Its consistent resistivity—around 5-6% IACS—ensures your systems stay on point.

Corrosion resistance is another big win. The high nickel content makes this bar a beast against rust, whether it’s in chemical plants, marine settings, or humid industrial environments. It keeps performing where other materials would corrode, which means less maintenance and longer-lasting thermocouples. That’s a huge plus for industries like energy and manufacturing where downtime is a no-go.

We love how easy CuNi44 bar is to work with. Its excellent formability lets you machine, weld, or shape it into whatever your thermocouple design needs—bars, rods, or custom profiles. Need a specific size or spec? We can customize it to fit your project perfectly, saving you time and effort during production.

The industry’s all about materials that are precise, durable, and sustainable, and CuNi44 bar hits all those marks. It’s recyclable, which is awesome for eco-friendly initiatives, and its long lifespan means less waste from replacements. With thermocouples playing a bigger role in smart manufacturing and renewable energy—think automated systems and wind turbines—CuNi44’s reliability is in high demand.

Parameter:

Properties Material	Resistivity 200c μΩ.m	Max working temperature (℃)	Tensile strength (Mpa)	Melting point (℃）	Density (g/cm3)	TCR *10-6/℃ (20-600℃）	EMF vs Cu (μV/℃） （0-100℃）
CuNi1	0.03	200	210	1085	8.9	＜100	-8
CuNi2	0.05	200	220	1090	8.9	＜120	-12
CuNi6	0.1	220	250	1095	8.9	＜60	-18
CuNi8	0.12	250	270	1097	8.9	＜57	-22
CuNi10	0.15	250	290	1100	8.9	＜50	-25
CuNi14	0.2	300	310	1115	8.9	＜30	-28
CuNi19	0.25	300	340	1135	8.9	＜25	-32
CuNi23	0.3	300	350	1150	8.9	＜16	-34
CuNi30	0.35	350	400	1170	8.9	＜10	-37
CuNi34	0.4	350	400	1180	8.9	0	-39
CuNi44	0.5	400	420	1200	8.9	＜-6	-43

Size Range
Wire	0.08-7.5mm
Ribbon	(0.05-0.35)*(0.5-6.0)mm
Strip	(0.50-2.5)*(5-180)mm
Rod	8-50mm

For more details, pls directly contact us.

Compared to other materials, CuNi44 stands out. Pure copper’s great for conductivity but fails in corrosive or high-heat settings. CuNi30Mn offers slightly better conductivity but less corrosion resistance, making CuNi44 the better pick for precision thermocouples. Chromel’s a thermocouple staple but doesn’t match CuNi44’s corrosion resistance in harsh environments. This bar nails the balance for high-stakes applications.

We craft our CuNi44 bar to meet strict standards like ISO 9001, so you’re getting quality you can trust every time. Whether you’re building thermocouples for industrial or aerospace use, this bar’s ready to deliver. Got a unique design in mind? Let us know, and we’ll make it happen.

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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FAQs:

1. What is CuNi44 bar made of?
   It’s a copper-nickel alloy with 44% nickel, often with manganese to enhance stability and corrosion resistance.

2. What are the main uses for CuNi44 bar?
   It’s used in thermocouple manufacturing, precision resistors, and electrical components in industries like aerospace, electronics, and energy.

3. How does CuNi44 bar perform in thermocouples?
   It’s spot-on, with stable thermoelectric properties for accurate temperature measurements, especially in Type T thermocouples.

4. Is CuNi44 bar corrosion-resistant?
   Big time—its high nickel content makes it excellent against corrosion in marine, chemical, and industrial settings.

5. Can CuNi44 bar handle high temperatures?
   Yes, it’s stable up to 500°C, perfect for high-temperature thermocouple and electrical applications.

6. Is CuNi44 bar cost-effective?
   It’s pricier than lower-nickel alloys, but its reliability and long life make it a solid choice for precision applications.

7. Can CuNi44 bar be customized?
   Totally! We can tailor dimensions, forms (bar, rod, plate), or specs to meet your thermocouple manufacturing needs.

8. Is CuNi44 bar environmentally friendly?
   It’s recyclable, supporting green practices, and its durability cuts down on waste from frequent replacements.