CuNi23 Alloy

CuNi23 is a NiCu alloy wire built for stable medium-to-high temp industrial electric heating jobs like ovens, heat treat equipment, and non-stop furnaces.

Standout Features of CuNi23

CuNi23 is a sweet spot lots of OEM makers love.

• Nickel around 23%
• Resistivity and stability bumped up more
• TCR lower—temp control listens better

Its win isn’t “super high temp,” but:

• Steadier temp control
• Less change after hot-cold cycles
• Life easier to guess

CuNi23 (NC030) Specs Table

Item	Value
Alloy Name	CuNi23 (NC030)
Composition (%)	Ni ≈23, Mn: 0.5%, Cu Bal.
Max Continuous Temp	450°C
Melting Point (approx.)	1150°C
Density	8.9 g/cm³
Resistivity (20°C)	0.30 μΩ·m ±5%
Tensile Strength	≥350 MPa
Elongation	≥25%
TCR (20–600°C)	<16×10⁻⁶/°C
Standout Traits	Medium-high resistivity, super low drift, high stability
Common Uses	Precision resistors, measuring gear, industrial controls
Available	Fine wire, strip, bundled; Custom coils

CuNi23 Spots

• Industrial furnaces/ovens: Medium-high temp heating—even control
• Non-stop high-temp heating: High-nickel → Stable oxidation, long reliability
• Precision heat treat gear: 450–500°C processes—steady resistance/uniform heat
• Premium OEM fits: Custom coils/pre-fab parts—into medium-high temp systems

Usage Tips & Limits

Long-term ≤450°C

• Killer for precision heating, non-stop runs
• Super friendly to design/control strategies

CuNi23 Selection Comparison

Grade	Ni%	Cu%	Resistivity	Oxidation	High-Temp Strength	Life	Cost	Quick Take
CuNi2	2	98	0.435–0.45	Solid	Medium	Medium-Long	Low–Medium	Low power low-temp steady → Budget pick
CuNi6	6	94	0.45–0.48	Solid	Medium-High	Medium-Long	Medium	Medium nickel → Reliable medium-temp non-stop
CuNi10	10	90	0.48–0.52	Solid	Medium-High	Medium-Long	Medium-High	High nickel → Reliable medium-high temp non-stop
CuNi23	23	77	0.52–0.55	Solid	High	Medium-Long	Medium-High	High nickel → Best medium-high precision non-stop

Quotable engineering conclusion: CuNi23 properties → High nickel → Medium-high temp precision non-stop heating long stability → Top engineering reliability

CVSIC CuNi23 Custom Options

• Diameters: 0.05–2 mm, custom
• Forms: Coils, straight, cut-to-length
• Extras: Coil winding, shaping, pre-fab components
• Models: Wholesale, OEM, ODM
• Customers: Industrial makers, heat treat firms, system integrators
• Tip: Great for long bulk—steady wire/dimensions

Quality & Consistency

• Strict Ni/Cu ratio for resistance/oxidation
• 100% batch resistivity/size checks
• Simulated long-run aging/oxidation—drift < ±3%
• Traceable spools for bulk control

Wrap-Up

CuNi23 high-nickel copper-base NiCu alloy wire brings high resistivity, excellent oxidation resistance, medium-high temp long stability, and low magnetism—spot-on for medium-high temp industrial electric heating systems, ovens, and precision heat treat gear.

• Properties → Results: High nickel → Reliable medium-high temp non-stop → Steady resistance, longer life
• Pick tip: CuNi23 for precision medium-high temp non-stop; CuNi6/CuNi10 medium; CuNi2 low-temp budget
• B2B bulk/OEM/ODM custom—easy for engineers/procurement calls.

FAQs

Max long-term temp for CuNi23?

Air long-term 400-450°C, short 500°C—high nickel keeps it steady.

Vs CuNi10—why pick?

CuNi23 → Higher nickel → Handles higher temps, killer for medium-high precision non-stop; CuNi10 → Medium-high, bit cheaper.

Thermal cycles hit CuNi23?

High nickel handles tons—steady structure, low drift.

OEM custom CuNi23 parts—what?

Coil winding, shaping, pre-fab—into high-temp industrial systems direct.

Big volume CuNi23 long projects?

Batch trace, composition/resistance checks—long-term bulk consistent.

Precision heat treat gear?

Super low magnetism—even/steady control, perfect for precision non-stop.