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Alloy 90 CuNi10 Resistance Wire 0.20mm with Low Resistivity Stable Positive TCR and Excellent Formability

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Huona (Shanghai) New Material Co., Ltd.

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:+86-21-66650080

Contact Person:
Mr.Roy View Contact Details

Alloy 90 CuNi10 Resistance Wire 0.20mm with Low Resistivity Stable Positive TCR and Excellent Formability

Brand Name	Huona
Model Number	Alloy 90
Certification	ISO9001
Place of Origin	Shanghai
Minimum Order Quantity	10KG
Price	Negotiable
Payment Terms	L/C,Western Union,T/T
Supply Ability	500 tons per month
Delivery Time	5-21 days
Packaging Details	Carton/Wooden case
Alloy Grade	Alloy 90
Standard Grade	CuNi10
Wire Diameter	0.20mm (±0.005mm)
Resistivity (20℃)	0.15 Ω·mm²/m
TCR Coefficient	+380~+420 ppm/℃
Max Working Temperature	380℃
Density	8.9 g/cm³
Elongation	≥28%

Detailed Product Description

Alloy 90 (CuNi10) Copper Nickel Resistance Wire – 0.20mm Complete Product Description

Product Overview

Alloy 90 also well known as Cuprothal 90, standard marked CuNi10, is a classic low nickel copper-nickel alloy material professionally manufactured by precise smelting, continuous casting, multi-pass cold drawing and precision stress relief annealing treatment. This alloy features rational nickel-copper ratio, outstanding electrical conductivity, stable inherent resistance characteristic, reliable mechanical ductility and excellent atmospheric corrosion resistance. Different from high nickel grade CuNi23 Alloy 180 and CuNi44 constantan, Alloy 90 owns lower resistivity and obvious positive temperature coefficient, perfectly suitable for manufacturing low resistance wire wound components, low temperature heating units and current sensing parts that require high conductivity and stable working performance under long-term running condition. The whole production process strictly follows industrial standard specifications, with uniform wire diameter, smooth and oxide-free surface, stable batch consistency, fully adapted to mass industrial production and electronic supporting application scenarios.

Domestic & International Equivalent Grades

Commercial Designation:Alloy 90 / Cuprothal 90
Standard Grade:CuNi10
European Standard:DIN 2.0811
Chinese Standard:GB/T 1234 Resistance Copper Nickel Alloy
Correspond Foreign Brand:Isabellenhucht CuNi10, Driver CuNi10 Grade

Core Material & Dimensional Specifications

Alloy Grade:Alloy 90 / CuNi10
Chemical Composition:Copper balance, Nickel 9.0–11.0%, Manganese 0.5–1.0%, Impurity elements strictly controlled below standard limit
Standard Diameter:0.20mm
Diameter Tolerance:±0.005mm
Customizable Size Range:0.06mm–1.50mm available
Supply Form:Bare bright wire, wound on standard plastic spool
Standard Spool Length:1000m per spool, fixed length cutting and customized winding length acceptable
Surface Condition:Annealed bright finish, no oxide layer, no scratch, no crack
Density:8.9 g/cm³

Electrical & Physical Performance Parameters

Resistivity at 20℃:0.15 Ω·mm²/m
Temperature Coefficient of Resistance (TCR):+380 ~ +420 ppm/℃
Continuous Maximum Operating Temperature:380℃
Short Term Allowable Temperature:420℃
Tensile Strength (Annealed State):320–480MPa
Elongation Rate:≥28%
Thermal Conductivity:High conductivity, far better than high nickel resistance alloy
Magnetic Property:Non-magnetic

Core Product Advantages

1. Low Resistivity & Excellent Conductivity

Alloy 90 CuNi10 has obviously lower resistivity compared with CuNi23 Alloy180 and CuNi44 constantan, with excellent current carrying capacity. It can meet the design demand of low resistance value components, avoid too long winding length, optimize product structure and save raw material cost effectively.

2. Stable Positive Temperature Coefficient Characteristic

With steady positive TCR value, the resistance changes linearly with temperature rising, the performance is predictable and controllable. It is very suitable for temperature compensation circuit and self-temperature-limiting heating occasions, maintaining stable working state under variable ambient temperature.

3. Superior Formability & Winding Performance

After precise annealing treatment, the wire owns good softness and ductility, not easy to harden and crack during repeated bending and close winding. It is compatible with automatic winding machine production, suitable for making tiny dense winding parts, high production yield and stable processing performance.

4. Good Solderability & Assembly Adaptability

Smooth bright bare surface without oxidation, easy to tin and solder, no need for special surface treatment. It can be directly welded with copper terminals and electronic pins, firm welding spot, not easy to fall off, convenient for subsequent electronic assembly and encapsulation.

5. Outstanding Corrosion & Oxidation Resistance

Copper-nickel alloy matrix forms dense protective oxide film naturally, owning good resistance to atmospheric humidity, mild acid and alkali environment and aging performance. Long-term working indoors and ordinary industrial environment will not produce obvious resistance drift and surface corrosion, greatly extending service life.

6. Cost-Effective & Batch Stable Supply

Low nickel content rationally controls raw material cost, while maintaining comprehensive performance qualification. Batch production keeps stable chemical composition and electrical parameters, no big difference between batches, very suitable for large-scale procurement and matching use in electronic factory assembly line.

Technical Parameter Table

Attribute	Typical Specification
Alloy Name	Alloy 90 (Cuprothal 90)
Standard Grade	CuNi10
Wire Diameter	0.20mm (±0.005mm)
Resistivity (20℃)	0.15 Ω·mm²/m
TCR Coefficient	+380~+420 ppm/℃
Max Working Temperature	380℃
Density	8.9 g/cm³
Tensile Strength	320–480MPa
Elongation	≥28%
Surface Finish	Annealed Bright Bare
Packaging Form	1000m/Plastic Spool

Supply & Packaging Standard

Supply Form:Bare alloy wire spool, support customized diameter, length and cutting strip
Packaging:Inner anti-oxidation isolation paper, outer sealed plastic packaging, standard export spool packaging, moisture proof, dust proof and oxidation proof
MOQ:Small sample order available, bulk industrial order supported
Custom Service:Special tolerance, ultra-fine wire drawing, tin plated surface treatment can be customized according to drawing

Typical Application Scope

Electronic Components:Low resistance wirewound resistors, current sampling resistors, potentiometer winding wires and load resistance elements.
Low Temperature Heating Industry:Small household appliance heating core, heating cable, floor heating wire and low power heating module.
Instrument & Meter:Temperature compensation winding, signal circuit resistance wire and precision instrument internal matching wire.
Industrial Electrical:Motor internal temperature compensation element, control cabinet low resistance current limiting wire and automation equipment matching resistance parts.
Communication & Consumer Electronics:Power supply low resistance element, sensor internal winding and daily electronic product circuit matching material.

Product Tags: Alloy 90 resistance wire 0.2mm CuNi10 resistance wire Huona Cuprothal 90 wire To Header

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Alloy 90 CuNi10 Resistance Wire 0.20mm with Low Resistivity Stable Positive TCR and Excellent Formability

Alloy 90 CuNi10 Resistance Wire 0.20mm with Low Resistivity Stable Positive TCR and Excellent Formability

Alloy 90 (CuNi10) Copper Nickel Resistance Wire – 0.20mm Complete Product Description

Product Overview

Domestic & International Equivalent Grades

Core Material & Dimensional Specifications

Electrical & Physical Performance Parameters

Core Product Advantages

1. Low Resistivity & Excellent Conductivity

2. Stable Positive Temperature Coefficient Characteristic

3. Superior Formability & Winding Performance

4. Good Solderability & Assembly Adaptability

5. Outstanding Corrosion & Oxidation Resistance

6. Cost-Effective & Batch Stable Supply

Technical Parameter Table

Supply & Packaging Standard

Typical Application Scope

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