Alambre de resistencia Cr20Ni35/Cr20Ni30

Features:: Cr20Ni35/Cr20Ni30 is characterized by high resistivity and good oxidation resistance. It has good ductility after use and excellent cold working properties, good weldability. Both Cr20Ni35 and Cr20Ni30 are mature nickel-chromium based heating alloys. Cr20Ni35 is slightly superior in high-temperature stability, corrosion resistance and service life, suitable for high-end applications; Cr20Ni30 offers cost advantages, suitable for large-scale medium-temperature applications. Both have similar resistivity and can be used interchangeably in the 800-1100℃ temperature range. Selection should comprehensively consider specific operating temperature, environmental conditions and cost budget.; Cr20Ni35 Resistance Wire is also known as Chromel D, Nikrothal 40, N4, Chromax, HAI-NiCr 40, Tophet D, Resistohm 40, Cronifer III, 35-20 Ni-Cr, Alloy D, Nikrothal 4, MWS-610, Stablohm 610
Advantages:: At high temperatures, Cr20Ni35/Cr20Ni30 can maintain stable mechanical properties, and their antioxidant performance is stable below 1100ºC. The corrosion rate is extremely low in strong acid, strong alkali, and reducing atmospheres, such as in 5% sulfuric acid where the corrosion rate is significantly lower than that of stainless steel.

Descripción del producto

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Composición química:

Alloy	C	P	S	Mn	Si	Cr	Ni	Al	Fe
Alloy	≤				Si	Cr	Ni	Al	Fe
Cr20Ni35	0.08	0.02	0.015	1.0	1.0~3.0	18.0~21.0	34.0~37.0	-	Residuo
Cr20Ni30	0.08	0.02	0.015	1.0	1.0~3.0	18.0~21.0	30.0~34.0	-	Residuo

Propiedades físicas:

Temp. máx. de funcionamiento	1100ºC	Resistividad 20ºC (μΩ·m)	1.04±0.05
Densidad	7.90 g/cm³	Conductividad térmica(20ºC)	13 W/(m·K)
Coeficiente de expansión lineal promedio(20-1000ºC)	19.0×10^-6/K	Capacidad calorífica	0.50 J/(g·K)
Punto de fusión aprox.	1390ºC	Alargamiento en el rompimiento (A/%)	Diámetro≤3.0mm: ≥20% Diámetro>3.0mm: ≥25%
Resistencia a la tracción(R_m/MPa)	≥600	Accelerated life test	≥80h/1100ºC
Microestructura	Austenita	Magnetismo	No magnético

Parámetros técnicos:

Diámetro (mm)	Ohm por metro (20ºC Ω/m)	Longitud por kg (m/kg)	Peso por metro (g/m)	Diámetro (mm)	Ohm por metro (20ºC Ω/m)	Longitud por kg (m/kg)	Peso por metro (g/m)
0.05	529.668	64467.88	0.01551	1.1	1.0944	133.20	7.50761
0.06	367.825	44769.36	0.02234	1.2	0.9196	111.92	8.93468
0.07	270.239	32891.78	0.03040	1.3	0.7835	95.37	10.48584
0.08	206.902	25182.77	0.03971	1.4	0.6756	82.23	12.16109
0.09	163.478	19897.49	0.05026	1.5	0.5885	71.63	13.96044
0.1	132.417	16116.97	0.06205	1.6	0.5173	62.96	15.88388
0.11	109.436	13319.81	0.07508	1.7	0.4582	55.77	17.93141
0.12	91.956	11192.34	0.08935	1.8	0.4087	49.74	20.10303
0.13	78.353	9536.67	0.10486	1.9	0.3668	44.65	22.39875
0.15	58.852	7163.10	0.13960	2.0	0.3310	40.29	24.81856
0.17	45.819	5576.81	0.17931	2.2	0.2736	33.30	30.03046
0.19	36.681	4464.53	0.22399	2.4	0.2299	27.98	35.73873
0.21	30.027	3654.64	0.27362	2.6	0.1959	23.84	41.94337
0.25	21.187	2578.72	0.38779	2.8	0.1689	20.56	48.64438
0.27	18.164	2210.83	0.45232	3.0	0.1471	17.91	55.84176
0.29	15.745	1916.41	0.52181	3.2	0.1293	15.74	63.53552
0.31	13.779	1677.10	0.59627	3.4	0.1145	13.94	71.72564
0.35	10.810	1315.67	0.76007	3.6	0.1022	12.44	80.41214
0.40	8.276	1007.31	0.99274	3.8	0.0917	11.16	89.59501
0.45	6.539	795.90	1.25644	4.0	0.0828	10.07	99.27424
0.50	5.297	644.68	1.55116	4.5	0.0654	7.96	125.64397
0.55	4.377	532.79	1.87690	5.0	0.0530	6.45	155.11601
0.60	3.678	447.69	2.23367	5.5	0.0438	5.33	187.69037
0.65	3.134	381.47	2.62146	6.0	0.0368	4.48	223.36705
0.70	2.702	328.92	3.04027	6.5	0.0313	3.81	262.14605
0.80	2.069	251.83	3.97097	7.0	0.0270	3.29	304.02737
0.85	1.833	223.07	4.48285	7.5	0.0235	2.87	349.01101
0.90	1.635	198.97	5.02576	8.0	0.0207	2.52	397.09698
0.95	1.467	178.58	5.59969	8.5	0.0183	2.23	448.28526
1.00	1.324	161.17	6.20464	9.0	0.0163	1.99	502.57586

Los parámetros anteriores se basan en la Norma Nacional China GB/T1234-2012. La tolerancia de la resistencia por metro: 0,03-0,06 mm es ±10%; 0,07-0,12 mm es ±8%; 0,13-0,17 mm es ±7%; 0,18-0,32 mm es ±6%; un diámetro de alambre superior a 0,32 mm es ±5%. Ofrecemos productos de aleación de níquel-cromo en diversas formas, como alambres, cintas y varillas. Otras aleaciones como Cr20Ni80, Cr30Ni70 y Cr15Ni60 también están disponibles a pedido.

Specifications:

Bright and soft annealed finish: 0.025 - 1.6mm; Acid-pickled finish: 1.0 -12.0mm; Rods: 6.0-150.0mm
Flat wires: width 0.2 - 6.0mm and thickness 0.08 - 1.0mm; Strips: width 5.0 - 300mm and thickness 0.05 - 4.0mm

Cr20Ni30/Cr20Ni35 Indicadores técnicos Descargar