0Cr21Al6Nb resistance wire

Features:: 0Cr21Al6Nb is a ferritic iron-chromium-aluminum alloy (FeCrAl alloy) that can be used at temperatures up to 1350°C. The alloy is characterized by high resistivity and very good oxidation resistance.; 0Cr21Al6Nb is most commonly used as heating elements in large industrial applications, such as industrial furnaces (commonly found in the glass, ceramic, electronics, and steel industries). Its high resistivity and ability to withstand elements without oxidation, even in sulphuric acid and hot atmospheres, make the 0Cr21Al6Nb a popular choice for handling large heating elements.; 0Cr21Al6Nb Resistance Wire is also known as Kanthal A-1, Aluchrom O, Alchrome 875, Alloy 875, Icralloy 25, Resistohm 145, Alferon 25, MWS-875, Stablohm 875 etc.
Specifications:: Bright and soft annealed finish: 0.05 - 1.6mm; Acid-pickled or oxidation finish: 1.0 -12.0mm; Golden color: 1.0-3.9mm; Blue color: 4.0-10.0mm; Rods: 6.0-150.0mm
Flat wire: width from 0.2 - 6.0mm and thickness from 0.08 - 1.0mm; Wide strip: width from 5.0 - 300mm and thickness from 0.05 - 4.0mm

Product Description

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Chemical Composition:

C	P	S	Mn	Si	Cr	Ni	Al	Fe	Nb
≤				Si	Cr	Ni	Al	Fe	Nb
0.05	0.025	0.02	0.5	≤0.6	21.0~23.0	≤0.6	5.0~7.0	Remainder	0.5

Physical Properties:

Max. continuous service Temp.	1350ºC	Resistivity at 20ºC( μΩ·m)	1.45±0.07
Density	7.10 g/cm³	Thermal conductivity(20ºC)	13 W/(m·K)
Average linear expansion coefficient(20-1000ºC)	16.0×10^-6/ºC	Specific heat capacity	0.49 J/(g·K)
Approx. melting point	1510ºC	Elongation at breakn	Diameter≤3.0mm: ≥10% Diameter>3.0mm: ≥12%
Tensile strength(R_m/MPa)	≥650	Accelerated life test	≥50h/1350ºC
Micrographic structure	Ferrite	Magnetic properties	Magnetic

Technical Parameters:

Diameter (mm)	Ohm per meter (20ºC Ω/m)	Length per kg (m/kg)	Weight per meter (g/m)	Diameter (mm)	Ohm per meter (20ºC Ω/m)	Length per kg (m/kg)	Weight per meter (g/m)
0.05	738.480	71731.87	0.01394	1.1	1.5258	148.21	6.74735
0.06	512.833	49813.80	0.02007	1.2	1.2821	124.53	8.02990
0.07	376.775	36597.89	0.02732	1.3	1.0924	106.11	9.42398
0.08	288.469	28020.26	0.03569	1.4	0.9419	91.49	10.92959
0.09	227.926	22139.46	0.04517	1.5	0.8205	79.70	12.54673
0.1	184.620	17932.97	0.05576	1.6	0.7212	70.05	14.27538
0.11	152.578	14820.63	0.06747	1.7	0.6388	62.05	16.11557
0.12	128.208	12453.45	0.08030	1.8	0.5698	55.35	18.06728
0.13	109.243	10611.22	0.09424	1.9	0.5114	49.68	20.13052
0.15	82.053	7970.21	0.12547	2.0	0.4615	44.83	22.30529
0.17	63.882	6205.18	0.16116	2.2	0.3814	37.05	26.98940
0.19	51.141	4967.58	0.20131	2.4	0.3205	31.13	32.11962
0.21	41.864	4066.43	0.24592	2.6	0.2731	26.53	37.69594
0.25	29.539	2869.27	0.34852	2.8	0.2355	22.87	43.71837
0.27	25.325	2459.94	0.40651	3.0	0.2051	19.93	50.18690
0.29	21.952	2132.34	0.46897	3.2	0.1803	17.51	57.10154
0.31	19.211	1866.07	0.53588	3.4	0.1597	15.51	64.46229
0.35	15.071	1463.92	0.68310	3.6	0.1425	13.84	72.26914
0.40	11.539	1120.81	0.89221	3.8	0.1279	12.42	80.52209
0.45	9.117	885.58	1.12921	4.0	0.1154	11.21	89.22116
0.50	7.385	717.32	1.39408	4.5	0.0912	8.86	112.92053
0.55	6.103	592.83	1.68684	5.0	0.0738	7.17	139.40806
0.60	5.128	498.14	2.00748	5.5	0.0610	5.93	168.68375
0.65	4.370	424.45	2.35600	6.0	0.0513	4.98	200.74760
0.70	3.768	365.98	2.73240	6.5	0.0437	4.24	235.59962
0.80	2.885	280.20	3.56885	7.0	0.0377	3.66	273.23979
0.85	2.555	248.21	4.02889	7.5	0.0328	3.19	313.66813
0.90	2.279	221.39	4.51682	8.0	0.0288	2.80	356.88462
0.95	2.046	198.70	5.03263	8.5	0.0256	2.48	402.88928
1.00	1.846	179.33	5.57632	9.0	0.0228	2.21	451.68210

The above parameters are based on Chinese National Standard GB/T1234-2012. The tolerance of resistance per meter: 0.03-0.06mm is ±10%; 0.07-0.12mm is ±8%; 0.13-0.17mm is ±7%; 0.18-0.32mm is ±6%; A wire diameter above 0.32mm is ±5%. We provide the Iron-Chromium-Aluminium alloy products in various forms, like the wires, strips and rods. Other alloys like 0Cr23Al5, 0Cr25Al5, 0Cr20Al3, 0Cr20Al6RE, 1Cr13Al4 and 0Cr27Al7Mo2 are also available upon request.

0Cr21Al6Nb Datasheet Download