U Type 9-18mm Heating Elements 1700 ℃

MoSi2 heating element is a kind of resistance heating element with high temperature resistance and oxidation resistance based on molybdenum disilicide. When used in high-temperature oxidizing atmosphere, like other Si based high-temperature resistant materials, MoSi2 surface will quickly form a bright and dense quartz (SiO2) glass film under high temperature and oxygen atmosphere, which can protect the inner layer of silicon molybdenum rod from further oxidation. Therefore, MoSi2 heating element has unique high-temperature oxidation resistance.

The resistivity of MoSi2 increases rapidly with the increase of temperature under the oxidizing atmosphere and the service temperature is about 1700 ℃. Under normal circumstances, the element resistance does not change with the length of service time. Therefore, the old and new MoSi2 heating elements can be mixed.

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Effect Of Different Atmosphere On Element Temperature

Atmosphere	Maximum Element Temperature
Atmosphere	Heating 1700 Grade
Air	1700℃
Nitrogen	1600℃
Argon, Helium	1600℃
Hydrogen	1100-1450℃
N2/H2 95/5%	1250-1600℃

Parameters

Lu \ Le	150	180	200	250	300	350	400	450	500	550	600	650	700	750	800
250	1596	1841	2005	2414	2822	3231	3640	4049	4458	4866	5275	5684	6093	6502	6910
	0.021	0.024	0.027	0.032	0.037	0.043	0.048	0.054	0.059	0.064	0.070	0.075	0.081	0.086	0.091
	5.8	6.7	7.3	8.8	10.3	11.7	13.2	14.7	16.2	17.7	19.2	20.7	22.2	23.6	25.1
300	1653	1899	2062	2471	2880	3289	3697	4106	4515	4924	5333	5741	6150	6559	6968
	0.022	0.025	0.027	0.033	0.038	0.043	0.049	0.054	0.060	0.065	0.071	0.076	0.081	0.087	0.092
	6.0	6.9	7.5	9.0	10.5	12.0	13.4	14.9	16.4	17.9	19.4	20.9	22.4	23.9	25.3
350	1711	1956	2120	2529	2937	3346	3755	4164	4573	4981	5390	5799	6208	6617	7025
	0.023	0.026	0.028	0.033	0.039	0.044	0.050	0.055	0.060	0.066	0.071	0.077	0.082	0.087	0.093
	6.2	7.1	7.7	9.2	10.7	12.2	13.7	15.1	16.6	18.1	19.6	21.1	22.6	24.3	25.8
400	1768	2014	2177	2586	2995	3404	3812	4221	4630	5039	5448	5856	6265	6674	7083
	0.023	0.027	0.029	0.034	0.040	0.045	0.050	0.056	0.061	0.067	0.072	0.077	0.083	0.088	0.094
	6.4	7.3	7.9	9.4	10.9	12.4	13.9	15.3	16.8	18.3	19.8	21.3	22.8	24.3	25.8
450		2071	2235	2644	3052	3461	3870	4279	4688	5096	5505	5914	6323	6732	7140
		0.027	0.030	0.035	0.040	0.046	0.051	0.057	0.062	0.067	0.073	0.078	0.084	0.089	0.094
		7.5	8.1	9.6	11.1	12.6	14.1	15.6	17.0	18.5	20.0	21.5	23.0	24.5	26.0
500			2292	2701	3110	3519	3927	4336	4745	5154	5563	5971	6380	6789	7198
			0.030	0.036	0.041	0.047	0.052	0.057	0.063	0.068	0.074	0.079	0.084	0.090	0.095
			8.3	9.8	11.3	12.8	14.3	15.8	17.3	18.7	20.2	21.7	23.2	24.7	26.2
550				2759	3167	3576	3985	4394	4803	5211	5620	6029	6438	6847	7255
				0.036	0.042	0.047	0.053	0.058	0.064	0.069	0.074	0.08	0.085	0.091	0.096
				10.0	11.5	13.0	14.5	16.0	17.5	19.0	20.4	21.9	23.4	24.9	26.4
600				2816	3225	3634	4042	4451	4860	5269	5678	6086	6495	6904	7313
				0.037	0.043	0.048	0.053	0.059	0.064	0.070	0.075	0.080	0.086	0.091	0.097
				10.2	11.7	13.2	14.7	16.2	17.7	19.2	20.6	22.1	23.6	25.1	26.6
650					3282	3691	4100	4509	4918	5326	5735	6144	6553	6962	7370
					0.043	0.049	0.054	0.060	0.065	0.070	0.076	0.081	0.087	0.092	0.097
					11.9	13.4	14.9	16.4	17.9	19.4	20.9	22.3	23.8	25.3	26.8
700	Power (W)				3340	3749	4157	4566	4975	5384	5793	6201	6610	7019	7428
	Resistance (Ω)				0.044	0.050	0.055	0.060	0.066	0.071	0.077	0.082	0.087	0.093	0.098
	Voltage (V)				12.1	13.6	15.1	16.6	18.1	19.6	21.1	22.6	24.0	25.5	27.0
750	Condition： Element Temperature 1500℃ Furnace Temperature 1300℃ Current 275A Surface Load 14.5W/C㎡					3806	4215	4624	5033	5441	5850	6259	6668	7077	7485
						0.050	0.056	0.061	0.067	0.072	0.077	0.083	0.088	0.094	0.099
						13.8	15.3	16.8	18.3	19.8	21.3	22.8	24.2	25.7	27.2
800						3864	4272	4681	5090	5499	5908	6316	6725	7134	7543
						0.051	0.056	0.062	0.067	0.073	0.078	0.084	0.089	0.084	0.100
						14.0	15.5	17.0	18.5	20.0	21.5	23.0	24.5	25.9	27.4

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W Type MoSi2 Heating Element Finished Product Test 1700℃

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U Type MoSi2 Heating Element Finished Product Test 1800℃