Send Message
Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd
products
Home /

products

Bright Constantan Copper Nickel Strip CuNi44Mn Oxidation Resistance 0.05mm * 100mm

Product Details

Place of Origin: SHANGHAI

Brand Name: TANKII

Certification: ISO9001:2015

Model Number: CUNI44

Payment & Shipping Terms

Minimum Order Quantity: 20kg

Price: Negotiated

Packaging Details: carton, plywod case with plastic film as clients required

Delivery Time: 7-12 DAYS

Payment Terms: L/C, T/T, Western Union, Paypal

Supply Ability: 20+TON+MONTH

Get Best Price
Contact Now
Specifications
Highlight:

nickel alloys

,

nichrome wire

,

nichrome resistance wire

Material:
Copper Alloy
Sample:
Available
Size:
0.05mm*100mm
Shape:
Foil/ Strip/ Sheet
Feature:
Bright, Flat
Material:
Copper Alloy
Sample:
Available
Size:
0.05mm*100mm
Shape:
Foil/ Strip/ Sheet
Feature:
Bright, Flat
Description
Bright Constantan Copper Nickel Strip CuNi44Mn Oxidation Resistance 0.05mm * 100mm

Copper Nickel Bright Constantan Strip (CuNi44Mn) Electric Resistance Heating Ribbon

 

Description

A copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity.

Constantan is a copper-nickel alloy usually consisting of 55% Copper and 45% Nickel. Its main feature is its resistance which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as Manganin (Cu86Mn12Ni2).

Of all modern strain gauge alloys, Constantan is the oldest, and still the most widely used. This situation reflects the fact that constantan has the best overall combination of properties needed for many strain gauge applications. This alloy has, for example, an adequately high strain sensitivity, or gauge factor, which is relatively insensitive to strain level and temperature. Its resistivity is high enough to achieve suitable resistance values in even very small grids, and its temperature coefficient of resistance is not excessive. In addition, constantan is characterized by good fatigue life and relatively high elongation capability. It must be noted, however, that constantan tends to exhibit a continuous drift at temperatures above 65 °C (150 °F); and this characteristic should be taken into account when zero stability of the strain gauge is critical over a period of hours or days.

Synonyms


A-Alloy P-alloy, copper-nickel alloy, CuNi44 resistance alloy, 55% copper/45% nickel alloy constantan, constantan foil, constantan strip, constantan sheet, constantan plate, constantan wire, strain gauge alloy, cupronickel, copper constantan

Chemical Properties
a) Ni= 44.2%, Mn= 1.5%, Fe= 0.5% , Cu= Balance

b) A-Alloy: Very importantly, constantan can be processed for self-temperature compensation to match a wide range of test material coefficients of thermal expansion. An alloy is supplied in self-temperature-compensation (S-T-C) numbers 00, 03, 05, 06, 09, 13, 15, 18, 30, 40 and 50, for use on test materials with corresponding thermal expansion coefficients, expressed in parts per million by length (or µm/m) per kelvin or degree Celsius or degree Fahrenheit.

c) P-alloy: For the measurement of very large strains, 5% (50 000 microstrain) or above, annealed constantan (P alloy) is the grid material normally selected. Constantan in this form is very ductile; and, in gauge lengths of 0.125 in (3 mm) and longer, can be strained to >20%. It should be borne in mind, however, that under high cyclic strains the P alloy will exhibit some permanent resistance change with each cycle, and cause a corresponding zero shift in the strain gauge. Because of this characteristic, and the tendency for premature grid failure with repeated straining, P alloy is not ordinarily recommended for cyclic strain applications. P alloy is available with S-T-C numbers of 08 and 40 for use on metals and plastics, respectively.

 

 

Send your inquiry
Please send us your request and we will reply to you as soon as possible.
Send