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19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements

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19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements

19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements
19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements 19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements 19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements 19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements

Large Image :  19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements

Product Details:
Place of Origin: Shanghai, China
Brand Name: TANKII
Certification: ISO9001:2015/ ROHS
Model Number: 0Cr25Al5
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: To negotiate
Packaging Details: spool, coil, carton or plywood case with plastic film according to clients' requirements
Delivery Time: 7-12 DAYS
Payment Terms: L/C, T/T, Western Union, Paypal
Supply Ability: 2000+TON+YEAR

19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements

Description
Available Material: Nickel Based Alloy, Staninless Steel... Applications: Resistors;Heating Equipments
Outer Diameter: Required Feature: Uniforme Resistance
Type: Stranded Surface: Smooth, Bright
High Light:

high temperature wire

,

electrical heating wire

19x0.52mm Uniforme Resistance Stranded Wire Cable for Heating Elements

 

General Description:

 

Stranded wire is composed of a number of small wires bundled or wrapped together to form a larger conductor. Stranded wire is more flexible than solid wire of the same total cross-sectional area. Stranded wire is used when higher resistance to metal fatigue is required. Such situations include connections between circuit boards in multi-printed-circuit-board devices, where the rigidity of solid wire would produce too much stress as a result of movement during assembly or servicing; A.C. line cords for appliances; musical instrument cables; computer mouse cables; welding electrode cables; control cables connecting moving machine parts; mining machine cables; trailing machine cables; and numerous others.

At high frequencies, current travels near the surface of the wire because of the skin effect, resulting in increased power loss in the wire. Stranded wire might seem to reduce this effect, since the total surface area of the strands is greater than the surface area of the equivalent solid wire, but ordinary stranded wire does not reduce the skin effect because all the strands are short-circuited together and behave as a single conductor. A stranded wire will have higher resistance than a solid wire of the same diameter because the cross-section of the stranded wire is not all copper; there are unavoidable gaps between the strands (this is the circle packing problem for circles within a circle). A stranded wire with the same cross-section of conductor as a solid wire is said to have the same equivalent gauge and is always a larger diameter.

However, for many high-frequency applications, proximity effect is more severe than skin effect, and in some limited cases, simple stranded wire can reduce proximity effect. For better performance at high frequencies, litz wire, which has the individual strands insulated and twisted in special patterns, may be used.

 
Brand name 1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2
Main chemical composition% Cr 12.0-15.0 23.0-26.0 19.0-22.0 22.5-24.5 18.0-21.0 21.0-23.0 26.5-27.8
Al 4.0-6.0 4.5-6.5 5.0-7.0 4.2-5.0 3.0-4.2 5.0-7.0 6.0-7.0
RE opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
Fe Rest Rest Rest Rest Rest Rest Rest
            Nb0.5 Mo1.8-2.2
Max.continuous
service temp.of
element (ºC)
950 1250 1250 1250 1100 1350 1400
Resistivity
μΩ.m,20ºC
1.25 1.42 1.42 1.35 1.23 1.45 1.53
Density
(g/cm3 )
7.4 7.10 7.16 7.25 7.35 7.10 7.10
Thermal
conductivity
KJ/m.h.ºC
52.7 46.1 63.2 60.2 46.9 46.1 45.2
Coefficient of
lines expansion
α×10-6/ºC
15.4 16.0 14.7 15.0 13.5 16.0 16.0
Melting pointºC 1450 1500 1500 1500 1500 1510 1520
Tensile strength
Mpa
580-680 630-780 630-780 630-780 600-700 650-800 680-830
Elongation at
rupture %
>16 >12 >12 >12 >12 >12 >10
Variation of
area %
65-75 60-75 65-75 65-75 65-75 65-75 65-75
Repeat bending
frequency(F/R)
>5 >5 >5 >5 >5 >5 >5
Hardness(H.B.) 200-260 200-260 200-260 200-260 200-260 200-260 200-260
Micrographic
structure
Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
Magnetic
properties
Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

 

 

The more individual wire strands in a wire bundle, the more flexible, kink-resistant, break-resistant, and stronger the wire becomes. However, more strands increases manufacturing complexity and cost.

For geometrical reasons, the lowest number of strands usually seen is 7: one in the middle, with 6 surrounding it in close contact. The next level up is 19, which is another layer of 12 strands on top of the 7. After that the number varies, but 37 and 49 are common, then in the 70 to 100 range (the number is no longer exact). Even larger numbers than that are typically found only in very large cables.

For application where the wire moves, 19 is the lowest that should be used (7 should only be used in applications where the wire is placed and then does not move), and 49 is much better. For applications with constant repeated movement, such as assembly robots and headphone wires, 70 to 100 is mandatory.

For applications that need even more flexibility, even more strands are used (welding cables are the usual example, but also any application that needs to move wire in tight areas). One example is a 2/0 wire made from 5,292 strands of #36 gauge wire. The strands are organized by first creating a bundle of 7 strands. Then 7 of these bundles are put together into super bundles. Finally 108 super bundles are used to make the final cable. Each group of wires is wound in a helix so that when the wire is flexed, the part of a bundle that is stretched moves around the helix to a part that is compressed to allow the wire to have less stress.

 

 

 

19x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements 019x0.52mm Uniforme Resistance Stranded Wire Cable For Heating Elements 1

 

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