한국어
- Place of Origin:CN
- Type:Insulated
- Application:Heating
- Conductor Material:Aluminum
- Conductor Type:Solid
- Brand Name:DKJL
- Model Number:Cr20Ni80 Cr30Ni70
- Insulation Material:none
Nickel chromium electric high temperature resistance heating wire for furnace
Heat resistance wire is a type of high resistance electrical wire. The wire resists the flow of electricity, and converts the electrical energy into heat.
Nichrome, a non-magnetic alloy of nickel and chromium, is commonly used to make resistance wire because it has a high resistivity and resistance to oxidation at high temperatures. When used as a heating element, resistance wire is usually wound into coils.
The high nickel content, in combination with the high chromium content let the scaling temperature can reach to 1250ºC
Chrome Nickel wire was shaped by means of high speed automatic cooling machine of which the power capacity is controlled by computer, they are available as wire and ribbon(strip).
High resistance wire Product forms and size range
Nichrome Alloy Grade | Cr20Ni80,Cr20Ni30,Cr15Ni60,Cr20Ni35,Cr20Ni40 |
Form | Round wire,Flat wire,Strip,Bar,Spring shaped wire, Wave shaped strip,Radiant tube heater |
Size | Wire: 0.030mm-10mm Ribbon: 0.05*0.2mm-2.0*6.0mm furnance spring wire according to customers requirement
|
High resistance wire Features and advantages
1)The highest working temperature up to 1200 degree.
2)higher strength than iron chromium aluminum under high temperature
3)not easy to deform under high temperature
4)good plasticity
5)easy to repair,
6)high emissivity,
7)Non-magnetic
8)strong corrosion resistance,
9)long service life
High resistance wire Application
Chrome nickel wire resistance is widely used for making electric heating elements in home appliances and industrial furnaces.,various electrical resistors and locomotive braking resistor, infrared equipment, liquefied gas infrared heat-resisting net, different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors and so on in Metallurgical machinery
High resistance wire Main characteristics
Type | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| ||||||
Main chemical composition | Ni | Rest | 55.0~61.0 | Rest | 34.0~37.0 | 30.0~34.0 |
Cr | 20.0~23.0 | 15.0~18.0 | 28.0~31.0 | 18.0~21.0 | 18.0~21.0 | |
Fe | ≤1 | Rest | ≤1 | Rest | Rest | |
Maximal Temperature(℃) | 1200 | 1150 | 1250 | 1100 | 1100 | |
Resistance Temperature correction coefficient.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
Melting point (℃) | 1400 | 1390 | 1380 | 1390 | 1390 | |
Resistivityρ20℃(10-6Ω.m) | 800℃ | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
1000℃ | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
1200℃ | 1.025 |
| 1.043 |
|
| |
Fast life value | Tem.(℃) | 1175 | 1100 | 1200 | 1050 | 1050 |
hour(h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
Specific gravity(g/cm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
Elongation(%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
Thermal(kj/m.h.℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Specific heat(20℃)j/g.℃ | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
Extend strength(20~1000℃)α*10-6℃ | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
Tensile strength(kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
Repeatedly bending(F/R) | >12 | >12 | >12 | >12 | >12 | |
Microstructure | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
High resistance wire Notice
Resistance electric heating wire has strong antioxidant properties, but a variety of gases in furnaces such as air, carbon, sulfur, hydrogen and nitrogen atmosphere, still have a certain impact on it.
Although these heating wires all have had antioxidant treatment, the transportation, winding, installation and other process will cause damage to a certain extent and reduce its service life.
In order to extend the service life, customers need to do pre oxidation treatment before using. The method is to heat alloy elements which have installed completely in the dry air to the temperature (lower 100-200C than its maximum using temperature), heat preservation for 5 to 10 hours, then cooling slowly with furnace.
Pictures of high resistance wire
Package of high resistance wire: Goods are supply in coil or on spool, Carton or wooden case in outside as demanded.
Shipping of high resistance wire: By vessel or by train from any Chinese port, Samples can be delivered by International express.
Package pictures of high resistance wire
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Sample evaluation
high resistance wire Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
DKJL refractories exporting company is one of the most professional suppliers of refractories in China. Our main products are refractory and thermal insulation materials, heating elements, industrial ceramics. They are available in various sizes and shapes. Our products enjoy a good reputation for their excellent quality and service in domestic and international markets.
1. How can I get your prompt quotation for high resistance wire?
We can give you reply with quotation quickly if you kindly send the inquiry with following factors of high resistance wire: diameter (or thickness and width), brand name (or working temperature), electrical resistance (Resistivity), application and quantity.
2. What’s the MOQ of the order?
No limit, we can offer the best suggestions and solutions according to your condition.
3. Which payment terms can you accept?
T/T,LC,Western Union,moneygram are available for us.
4. After an order is placed, when to deliver?
15-25days after confirming the order.
5. Does your company accept customization?
We accept OEM service.
6. How to solve the quality problems?
If the products don’t conform to customer’s samples or have quality problems, our company will be responsible to make compensation for it based on enough evidences.
7. What is the HS code?
The HS code is 85169090
8. Is there any cost for the sample?
We provide free sample but don’t bear the freight
9. How can I contact you?
...
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