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6J12/6J12P/6J12X Resistance Wire Copper Manganese Nickel OEM For Heating System

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Brand Name :	Senphus
Model Number :	6J12/6J12P/6J12X
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Payment Terms :	T/T, D/P
Supply Ability :	30 Tons per day
Delivery Time :	3 days
Certification :	ISO9001

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6J12/6J12P/6J12X Resistance Wire Copper Manganese Nickel OEM For Heating System

6J12/6J12P/6J12X Resistance Wire Copper Manganese Nickel OEM For Heating System

The 6J12 alloy wire is a manganin-type material composed primarily of copper (Cu), nickel (Ni), and manganese (Mn). It is specifically designed for high-precision applications requiring stable electrical resistance, low thermal electromotive force (EMF), and minimal temperature coefficient of resistance (TCR).

The 6J12 alloy wire offers long-term stability, high durability, and consistent electrical performance in varying environmental conditions. It is also cost-effective for high-precision applications, making it a popular choice in scientific and industrial fields.

In summary, 6J12 combines high resistivity, low TCR, and corrosion resistance, making it indispensable in precision electrical and temperature-sensitive applications.

Chemical composition

Name	Type	Main chemical composition %
Name	Type	Cu	Mn	Ni	Si
Manganin	6J12	Rest	11~13	2~3	/
F1 Manganin	6J8	Rest	8~10	/	1~2
F2 Manganin	6J13	Rest	11~13	2~5	/

Volume resistivity for wires, sheet and ribbons

Name	Type	Volume resistivity (μΩ·m)
Manganin	6J12	0.47±0.03
F1 Manganin	6J8	0.35±0.05
F2 Manganin	6J13	0.44±0.04

Average resistance-temperature coefficient of Constantan

Name		Application temperature	Test temperature	Resistance-temperature coefficient		Average resistance-temperature coefficient
				α×10^-6 ℃^-1	β×10^-6 ℃^-1	α×10-6 ℃-1
Manganin wire, sheet	Level 1	5~45	10, 20, 40	-3~+5	-0.7~0	/
	Level 2			-5~+10
	Level 3			-10~+5
F1 Manganin wire, sheet		10~80	10, 20, 40	-5~+10	-0.25~0	/
F2 Manganin wire, sheet		10~80		0~+40	-0.7~1	/

Elongation rate

Dia.(mm)	Elongation rate (Lo=200mm), %
0.05	6
＞0.05~0.10	8
＞0.10~0.50	12
＞0.50	15

Thermal EMF rate for copper

Name	Type	Temperature	Average thermal EMF rate for copper
Manganin	6J12	0~100	1
F1 Manganin	6J8	0~100	2
F2 Manganin	6J13	0~100	3
Note: Thermal EMF rate for copper is absolute value

The net weight per spool

Dia(mm)	Net weight (g)	Dia(mm)	Net weight (g)
0.02~0.025	5	>0.28~0.45	300
>0.025~0.03	10	>0.45~0.63	400
>0.03~0.04	15	>0.63~0.75	700
>0.04~0.06	30	>0.75~1.18	1200
>0.06~0.08	60	>1.18~2.50	2000
>0.08~0.15	80	>2.50~3.00	3000
>0.15~0.28	150

Manganin(6J12) Technical data of wires

Dia. (mm)	Cross-sectional area (mm²)	Weight/Meter (g/m)	Resistance/Meter at 20℃ (Ω/m)	Dia. (mm)	Cross-sectional area (mm²)	Weight/Meter (g/m)	Resistance/Meter at 20℃ (Ω/m)
0.020	0.000314	0.00265	1346-1646	0.224	0.03941	0.3326	11.2-12.6
0.022	0.000318	0.00321	1113-1360	0.250	0.04909	0.414	9.00-10.15
0.025	0.000491	0.00414	862-1053	0.280	0.06158	0.5197	7.17-8.09
0.028	0.000616	0.0052	687-840	0.315	0.07793	0.6577	5.73-6.33
0.032	0.000804	0.00679	583-631	0.355	0.9898	0.8354	4.51-4.99
0.036	0.001018	0.00859	452-499	0.400	0.1257	1.061	3.55-3.93
0.040	0.001257	0.01061	344-404	0.450	0.159	1.342	2.81-3.10
0.045	0.001509	0.01342	272-319	0.500	0.1963	1.657	2.27-2.51
0.050	0.001963	0.01657	220-259	0.560	0.2463	2.08	1.83-1.98
0.056	0.002463	0.02079	176-206	0.630	0.3117	2.63	1.45-1.57
0.063	0.003117	0.02631	139-163	0.710	0.3959	3.34	1.14-1.23
0.071	0.003959	0.03341	109-128	0.750	0.4418	3.73	1.02-1.11
0.080	0.005027	0.04243	86.0-101.0	0.800	0.5027	4.24	0.898-0.972
0.090	0.006362	0.0537	68.0-79.80	0.850	0.5674	4.79	0.795-0.861
0.100	0.007854	0.0663	55.1-64.6	0.900	0.6362	5.37	0.709-0.768
0.112	0.009852	0.08315	44.4-51.0	0.950	0.7088	5.98	0.637-0.690
0.125	0.01227	0.1036	35.6-41.0	1.000	0.7854	6.63	0.574-0.622
0.140	0.01539	0.1299	28.4-32.7	1.060	0.8825	7.45	0.511-0.554
0.150	0.01767	0.1491	24.7-28.5	1.120	0.9852	8.32	0.458-0.496
0.160	0.02011	0.1697	21.7-25.0	1.180	1.094	9.23	0.413-0.447
0.170	0.02270	0.1916	19.3-22.2	1.250	1.227	10.36	0.368-0.398
0.180	0.02545	0.2148	17.2-19.8	1.320	1.368	11.55	0.330-0.357
0.190	0.02835	0.239	15.4-17.7	1.400	1.539	12.99	0.293-0.318
0.200	0.03142	0.2652	14.1-15.9	1.500	1.767	14.91	0.255-0.277
0.212	0.03530	0.2979	12.5-14.1	1.600	2.011	16.97	0.224-0.243

Constantan&Manganin wire data table

Dia.(mm)		Sectional area nominal value(mm²)	Resistance per meter (Ω/m)
Dia.(mm)			6J12X		6J8X		6J13X		6J40X
Nominal value (mm)	Tolerance		Nominal value (Ω/m)	Tolerance	Nominal value (Ω/m)	Tolerance	Nominal value (Ω/m)	Tolerance	Nominal value (Ω/m)	Tolerance
0.020	±0.002	0.000314	1496	±10%					1528	±10%
0.022		0.000380	1236						1263
0.025		0.000491	957						978
0.028		0.000616	763						780
0.032	±0.003	0.000804	584	±8%		±8%		±8%	597	±8%
0.036		0.001018	462						472
0.040		0.001257	374						382
0.045		0.001590	296						302
0.050		0.001963	239						244
0.056		0.002463	191						195
0.063		0.003117	151						154
0.071		0.003959	119						121
0.080		0.005027	93.5		69.6		87.5		95.5
0.090		0.006362	73.9		55.0		69.2		75.5
0.100		0.007854	59.8		44.6		56.0		61.1
0.112	±0.005	0.009852	47.7	±7%	35.5	±7%	44.7	±7%	48.7	±7%
0.125		0.01227	38.3		28.5		35.9		39.1
0.140		0.01539	30.5		22.7		28.6		31.2
0.160		0.02011	23.4		17.4		21.9		23.9
0.180		0.02545	18.5		13.8		17.3		18.9
0.200	±0.005	0.03142	15.0	±6%	11.1	±6%	14.0	±6%	15.3	±6%
0.224		0.03941	11.9		8.88		11.2		12.2
0.250		0.04909	9.57		7.13		8.96		9.78
0.280		0.06158	7.63		5.68		7.15		7.80
0.315	±0.010	0.007793	6.03	±5%	4.49	±5%	5.65	±5%	6.16	±5%
0.355		0.09898	4.75		3.54		4.45		4.85
0.400		0.1257	3.74		2.79		3.50		3.82
0.450		0.1590	2.96		2.20		2.77		3.02
0.500	±0.015	0.1963	2.39	±4%	1.78	±4%	2.24	±4%	2.44	±4%
0.560		0.2463	1.91		1.42		1.79		1.95
0.630		0.3117	1.51		1.12		1.41		1.51
0.710		0.3959	1.19		0.884		1.11		1.21
0.750		0.4418	1.06		0.792		1.00		1.09
0.800		0.5027	0.935		0.696		0.875		0.955
0.850		0.5674	0.828		0.617		0.775		0.846
0.900		0.6362	0.739		0.550		0.692		0.755
0.950		0.7088	0.663		0.494		0.621		0.677
1.000		0.7854	0.598		0.446		0.560		0.611
1.060	±0.020	0.8852	0.533	±4%	0.397	±4%	0.499	±4%	0.544	±4%
1.120		0.9852	0.477		0.355		0.447		0.487
1.180		1.094	0.430		0.320		0.402		0.439
1.250		1.227	0.383		0.285		0.359		0.391
1.320		1.368	0.343		0.256		0.322		0.351
1.400		1.539	0.305		0.227		0.286		0.312
1.500		1.767	0.266		0.198		0.249		0.272
1.600		2.011	0.234		0.174		0.219		0.239
1.700	±0.025	2.270	0.207	±4%	0.154	±4%	0.194	±4%	0.211	±4%
1.800		2.545	0.185		0.138		0.173		0.189
1.900		2.835	0.166		0.123		0.155		0.169
2.000		3.142	0.15		0.111		0.140		0.153
2.120		3.530	0.133		0.0992		0.125		0.136
2.240	±0.030	3.941	0.119	±4%	0.0888	±4%	0.112	±4%	0.122	±4%
2.360		4.374	0.107		0.0800		0.101		0.110
2.500		4.909	0.0957		0.0713		0.0896		0.0978
2.650		5.515	0.0852		0.0635		0.0798		0.0870
2.800		6.158	0.0763		0.0568		0.0715		0.0780
3.000		7.069	0.0665		0.0495		0.0622		0.0679
3.150	±0.035	7.793	0.0603	±4%	0.0449	±4%	0.0565	±4%	0.0616	±4%
3.350		8.814	0.0533		0.0397		0.0499		0.0545
3.550		9.898	0.0475		0.0354		0.0445		0.0485
3.750		11.04	0.0426		0.0317		0.0398		0.0435
4.000		12.57	0.0374		0.0279		0.0350		0.0382
4.250		14.19	0.0331		0.0247		0.0310		0.0338
4.500		15.90	0.0296		0.0220		0.0277		0.0302
4.750	±0.040	17.72	0.0265	±4%	0.0198	±4%	0.0248	±4%	0.0271	±4%
5.000	±0.040	19.63	0.0239	±4%	0.0178	±4%	0.0224	±4%	0.0244	±4%
5.300	±0.050	22.06	0.0213	±4%	0.0159	±4%	0.0199	±4%	0.0218	±4%
5.600	±0.050	24.63	0.0191	±4%	0.0142	±4%	0.0179	±4%	0.0195	±4%
6.000	±0.060	28.27	0.0166	±4%	0.0124	±4%	0.0156	±4%	0.017	±4%
6.300	±0.060	31.17	0.0151	±4%	0.0112	±4%	0.0141	±4%	0.0154	±4%

Sheet size

Thickness(mm)	Tolerance	Width(mm)	Tolerance
0.1	±0.010	50 75 100	Width＜100mm, ±1 Width≥100mm, ±1.5
0.112
0.125
0.140
0.160
0.180	±0.0100-0.020
0.200
0.224
0.250
0.280
0.315
0.355
0.400	±0.020	50 75 100 125 150 175
0.450
0.500
0.560	±0.020-0.030
0.630
0.710
0.800	±0.030
0.900	±0.030
1.000	±0.040
1.120
1.250
1.400	±0.050
1.600	±0.050
1.800	±0.060
2.000	±0.060

Manganin strip table, Cross-sectional area(mm2)

Width(mm) Thickness(mm)		6.3	8.0	10.0	12.5	16.0	20.0	25.0	31.5	40.0
Width(mm) Thickness(mm)		±0.3	±0.3	±0.3	±0.4	±0.4	±0.5	±0.5	±0.6	±0.7
0.180	±0.010	1.066
0.200		1.184
0.224		1.327	1.684
0.250	+0.01 -0.02	1.481	1.880	2.450
0.280		1.658	2.106	2.744
0.315		1.865	2.369	3.087	3.859
0.355		2.102	2.670	3.479	4.349
0.400	±0.020	2.369	3.008	3.920	4.900	6.272
0.450		2.665	3.384	4.410	5.513	7.056	8.820	11.03
0.500		2.961	3.760	4.900	6.125	7.840	9.800	12.25
0.560	+0.020 -0.030	3.316	4.211	5.488	6.860	8.781	10.98	13.72
0.630		3.731	4.738	6.174	7.718	9.878	12.35	15.44
0.710		4.205	5.339	6.958	8.698	11.13	13.92	17.40
0.800	±0.030	4.738	6.016	7.840	9.800	12.54	15.68	19.60	24.70	31.36
0.900	±0.030	5.33	6.768	8.820	11.03	14.11	17.64	22.05	27.78	35.28
1.000	±0.040	5.922	7.520	9.800	12.25	15.68	19.60	24.50	30.87	39.20
1.120		6.633	8.422	10.98	13.72	17.56	21.95	27.44	34.57	43.90
1.250		7.403	9.400	12.25	15.31	19.60	24.50	30.63	38.59	49.00
1.400	±0.050	8.291	10.53	13.72	17.15	21.95	27.44	34.30	43.22	54.88
1.600	±0.050	9.475	12.03	15.68	19.60	25.09	31.36	39.20	49.39	62.72
1.800	±0.060	10.66	13.54	17.64	22.05	28.22	35.28	44.10	55.57	70.56
2.000	±0.060	11.84	15.04	19.60	24.50	31.36	39.20	49.00	61.74	78.40
Note : The effective cross-sectional area of strip is the product of its width and thickness multiplies the following coefficient: Width<10mm, multiplied by 0.98; Width≥10mm, multiplied by 0.94.

Some key features of 6J12 include:

High Electrical Resistance:

6J12 has a high electrical resistance, which is crucial for applications requiring precise resistance values.

Temperature Coefficient of Resistance (TCR):

The alloy exhibits a low and stable temperature coefficient of resistance, indicating minimal change in resistance with temperature fluctuations, typically ranging from ±20 ppm/°C to ±50 ppm/°C.

Corrosion Resistance:

Thanks to its high nickel and chromium content, 6J12 offers excellent resistance to oxidation and corrosion, making it suitable for use in both acidic and alkaline environments.

Creep Resistance:

The alloy shows good resistance to creep, with minimal plastic deformation under stress at elevated temperatures, making it suitable for high-temperature applications.

Fatigue Life:

6J12 has a fatigue life of about 5×10^6 cycles at a stress level of 50 MPa when tested at high temperatures, indicating its endurance in high-temperature fatigue conditions.

These characteristics make 6J12 an ideal material for precision resistors, temperature compensation elements, strain gauges, and other applications where stable and precise electrical resistance is required across a broad temperature range.

Applications:

Precision Resistors:

Due to its high electrical resistance and stable temperature coefficient of resistance, 6J12 is widely used in the manufacturing of precision resistors and resistor elements.

Temperature Compensation:

The alloy's low temperature coefficient makes it suitable for temperature compensation devices and thermistors that require precise resistance changes with temperature variations.

Strain Gauges:

6J12 is used in the production of strain gauges for measuring mechanical strain, given its accurate and stable resistance characteristics under stress.

Electronic Components:

The alloy is utilized in various electronic components where high resistance and temperature stability are necessary, such as in resistor networks and rheostats.

Automotive Sensors:

6J12 finds use in automotive sensors that require resistance changes in response to temperature or mechanical stress.

Industrial Controls:

In industrial control systems, 6J12 is used for its reliable performance in sensors and control elements that need to maintain consistent resistance under varying conditions.

Medical Equipment:

The alloy is employed in medical equipment where precise resistance is critical, such as in temperature sensors and diagnostic devices.

Aerospace and Defense:

6J12 is used in aerospace and defense applications for its ability to maintain performance in extreme temperature conditions and its resistance to corrosion.

Telecommunications:

In telecommunications, 6J12 is used for its consistent electrical properties in high-frequency applications and its resistance to environmental factors.

Power Grids:

The alloy is utilized in power grids for current-sensing devices and other components that require stable resistance under high electrical stress.

These applications take advantage of 6J12's unique combination of high resistance, temperature stability, and corrosion resistance, making it a valuable material in precision electronics and engineering.

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