Resistance Heating Wire

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Our resistance heating wire is available in different models which are made of different materials, such as pure nickel, chromel alloy, Fe-Cr-Al alloy and copper nickel alloy. During the production, it was treated by a range of processes like smelting, steel rolling, forging, annealing, drawing, surface treatment, resistance control test, etc. It now has been widely used for making heating equipment like industrial furnace, household heating appliance, various electrical resistors (like locomotive braking resistor), and so on.

Brief Introduction of Resistance Heating Wire
Product name: heating resistance wire
Type: Ni-Cr wire, pure nickel, chromel alloy, Fe-Cr-Al alloy, fopper nickel alloy, etc.
Color: bright, oxidized
Package: carton or wooden case as demanded
Application: making heating equipment like industrial furnace, civil heating appliance, various electrical resistors and locomotive braking resistor
Place of Origin: Jiangsu, China (Mainland)
Eco-friendly: Yes
MOQ: 30kgs
Certificate: ISO, CQC
Making sample time: All types are in stock.
Trade term: FOB, EXW, CIF, or CFR

Forms and Specifications of Resistance Heating Wire
Round type diameter: 0.02-12mm
Max. width of ribbon/strip type: 300mm
Stranded type: according to your requests
Properties: annealed, oxidized/acid treated/bright

Specifications of Cold-drawing Round Type Resistance Heating Wire

Diameter (mm)	Tolerance (mm)	Diameter (mm)	Tolerance (mm)
0.03-0.05	±0.005	>0.50-1.00	±0.02
>0.05-0.10	±0.006	>1.00-3.00	±0.03
>0.10-0.20	±0.008	>3.00-6.00	±0.04
>0.20-0.30	±0.010	>6.00-8.00	±0.05
>0.30-0.50	±0.015	>8.00-12.0	±0.4

Specification of Cold-drawing Strip Type Resistance Heating Wire

Thickness (mm)	Tolerance (mm)	Width (mm)	Tolerance (mm)
0.05-0.10	±0.010	5.00-10.0	±0.2
>0.10-0.20	±0.015	>10.0-20.0	±0.2
>0.20-0.50	±0.020	>20.0-30.0	±0.2
>0.50-1.00	±0.030	>30.0-50.0	±0.3
>1.00-1.80	±0.040	>50.0-90.0	±0.3
>1.80-2.50	±0.050	>90.0-120.0	±0.5
>2.50-3.50	±0.060	>120.0-250.0	±0.6

Chemical Composition of Resistance Heating Wire

Alloy material	Chemical composition (%)
	C	P	S	Mn	Si	Cr	Ni	Al	Fe	others
	Max. (≤)				Si	Cr	Ni	Al	Fe	others
Cr20Ni80	0.08	0.02	0.015	0.6	0.75-1.60	20.0-23.0	Rest	≤0.50	≤1.0	－
Cr30Ni70	0.08	0.02	0.015	0.6	0.75-1.60	28.0-31.0	Rest	≤0.50	≤1.0	－
Cr15Ni60	0.08	0.02	0.015	0.6	0.75-1.60	15.0-17.0	55.0-61.0	≤0.50	Rest	－
Cr20Ni35	0.08	0.02	0.015	1	1.00-3.00	18.0-21.0	34.5-36.0	－	Rest	－
Cr20Ni30	0.08	0.02	0.015	1	1.00-2.00	18.0-21.0	30.0-31.5	－	Rest	－
1Cr13Al4	0.12	0.025	0.025	0.7	≤1.00	12.5-15.0	－	3.5-4.5	Rest	－
0Cr15Al5	0.12	0.025	0.025	0.7	≤1.00	14.5-15.5	－	4.5-5.3	Rest	－
0Cr25Al5	0.06	0.025	0.025	0.7	≤0.60	23.0-26.0	≤0.60	4.5-6.5	Rest	－
0Cr23Al5	0.06	0.025	0.025	0.7	≤0.60	20.5-23.5	≤0.60	4.2-5.3	Rest	－
0Cr21Al6	0.06	0.025	0.025	0.7	≤1.00	19.0-22.0	≤0.60	5.0-7.0	Rest	－
1Cr20Al3	0.06	0.025	0.025	0.7	≤1.00	18.0-21.0	≤0.60	3.0-4.2	Rest	－
0Cr21Al6Nb	0.05	0.025	0.025	0.7	≤0.60	21.0-23.0	≤0.60	5.0-7.0	Rest	Nb add 0.5
0Cr27Al7Mo2	0.05	0.025	0.025	0.2	≤0.40	26.5-27.8	≤0.60	6.0-7.0	Rest	Mo add 2.0

Technical Specification of Resistance Heating Wire (Part 1)

Alloy type	Diameter (mm)	Resistivity (μΩm, 20℃)	Tensile strength (N/mm²)	Elongation (%)	Bending times	Max. continuous service temperature (℃)	Service life (hours)
Cr20Ni80	<0.50	1.09±0.05	850-950	>20	>9	1200	>20000
	0.50-3.0	1.13±0.05	850-950	>20	>9	1200	>20000
	>3.0	1.14±0.05	850-950	>20	>9	1200	>20000
Cr30Ni70	<0.50	1.18±0.05	850-950	>20	>9	1250	>20000
Cr30Ni70	≥0.50	1.20±0.05	850-950	>20	>9	1250	>20000
Cr15Ni60	<0.50	1.12±0.05	850-950	>20	>9	1125	>20000
Cr15Ni60	≥ 0.50	1.15±0.05	850-950	>20	>9	1125	>20000
Cr20Ni35	<0.50	1.04±0.05	850-950	>20	>9	1100	>18000
Cr20Ni35	≥ 0.50	1.06±0.05	850-950	>20	>9	1100	>18000
1Cr13Al4	0.03-12.0	1.25±0.08	588-735	>16	>6	950	>10000
0Cr15Al5		1.25±0.08	588-735	>16	>6	1000	>10000
0Cr25Al5		1.42±0.07	634-784	>12	>5	1300	>8000
0Cr23Al5		1.35±0.06	634-784	>12	>5	1250	>8000
0Cr21Al6		1.42±0.07	634-784	>12	>5	1300	>8000
1Cr20Al3		1.23±0.06	634-784	>12	>5	1100	>8000
0Cr21Al6Nb		1.45±0.07	634-784	>12	>5	1350	>8000
0Cr27Al7Mo2	0.03-12.0	1.53±0.07	686-784	>12	>5	1400	>8000

Technical Specification of Resistance Heating Wire (Part 2)

Alloy type		Chemical composition (%)						Density (g/cm³)	Melting point (℃)	Resistivity (μΩm, 20℃)	Tensile strength (N/㎜²)	Elongation (％)	Max. continuous service temperature (℃)
Alloy type		Cu	Mn	Ni	Cr	Al	Fe	Density (g/cm³)	Melting point (℃)	Resistivity (μΩm, 20℃)	Tensile strength (N/㎜²)	Elongation (％)	Max. continuous service temperature (℃)
Constantan (Cu-Ni Alloy)	CuNi44	Rest	1.0	44	－	－	－	8.9	1280	0.49	≥400	≥20	450-700
	CuNi40	Rest	1.0	40	－	－	－	8.9	1280	0.48±0.03	≥400	≥20	450-700
	CuNi34	Rest	1.0	34	－	－	－	8.9	1180	0.40	≥400	≥20	350-600
	CuNi30	Rest	1.0	30	－	－	－	8.9	1170	0.35	≥400	≥20	350-600
	CuNi23	Rest	0.5	23	－	－	－	8.9	1150	0.30	≥350	≥20	300-450
	CuNi19	Rest	0.5	19	－	－	－	8.9	1135	0.25	≥340	≥20	300-450
	CuNi15	Rest	0.3	14.5	－	－	－	8.9	1115	0.20	≥310	≥20	300-400
	CuNi10	Rest	－	10	－	－	－	8.9	1100	0.15	≥290	≥20	250-350
	CuNi8	Rest	－	8	－	－	－	8.9	1097	0.12	≥270	≥20	250-350
	CuNi6	Rest	－	6	－	－	－	8.9	1095	0.10	≥251	≥18	200-300
	CuNi2	Rest	－	2	－	－	－	8.9	1090	0.05	≥220	≥18	200-300
	CuNi1	Rest	－	1	－	－	－	8.9	1085	0.03	≥210	≥18	200-300
Karma		－	－	Rest	19-22	2.5-3.2	2-3	8.1	1400	1.33±0.07	950	10-20	-60-300
Evanohm		－	－	Rest	19-22	2.5-3.2	1.0	8.4	1400	1.05±0.05	686-736	30	0-500
Manganin (Cu-Mn Alloy)	CuMn12	Rest	11-13	2-3	－	－	－	8.4	960	0.47±0.03	490-539	10-30	50
	CuMn13	Rest	11-13	－	－	－	－	8.4	960	0.44±0.04	490-539	10-30	80
	CuMn8	Rest	8-10	2-5	－	－	－	8.7	960	0.35±0.05	490-539	10-30	80

Process Flow

Packaging and Delivery of Resistance Heating Wire

Advantage of Our Resistance Heating Wire
1. Low MOQ: The order can meet your promotional business very well.
2. OEM accepted: We can produce various kinds of resistance wire as per your design if you provide us the related drawings.
3. Good service: MICC treats clients as friend, and the service will be excellent.
4. Good quality: We have a strict quality control system and good reputation on the overseas market.
5. Fast and cheap delivery: We are granted with big discount by the carriers due to our long-term contracts with them.

Order Guide of Resistance Heating Wire
General Order Information
As a senior resistance heating cable supplier, MICC has more than 5 years of experience and sound reputation and credits among the foreign customers for our first-rate products and services. Our distribution network has expanded to Europe, South America, the Middle East, etc. OEM orders are especially welcomed!
In addition, we assure you that every order could be delivered on time.

Procedure of Placing an Order of Resistance Heating Wire
1. The inquiry will get professional and accurate quotation.
2. Confirm the price, trade terms, lead time, artwork, payment terms, etc.
3. MICC sends the proforma invoice with MICC seal.
4. Customer arranges the payment of deposit and sends us bank slip.
5. We inform the clients that we have got the payment, and will make the samples according to your requests. Then we will send you product photos or real samples to get your approval. After your approval, we will arrange the production and inform you the estimated time.
6. In the middle of the production, we send you more photos of the production line in which you can see your products. The estimated delivery time will be reconfirmed.
7. At the end of volume production, product photos will be sent to customers again.
8. Clients make payment for balance. MICC ships the goods and informs you the tracking number and check the status of shipment for clients.
9. The order is finished perfectly when you receive the goods and get satisfied with them.
10. We are grateful for any feedbacks to MICC about quality, service, market feedback and suggestions, so that we can keep improving.

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