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Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors

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    Buy cheap Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors from wholesalers
     
    Buy cheap Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors from wholesalers
    • Buy cheap Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors from wholesalers
    • Buy cheap Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors from wholesalers
    • Buy cheap Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors from wholesalers

    Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors

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    Brand Name : Senphus
    Model Number : Cr30Ni70/NiCr7030/ХН70Ю
    Certification : ISO9001
    Payment Terms : T/T, D/P
    Supply Ability : 30 Tons per day
    Delivery Time : 3 days
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    Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors

    Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors


    NiCr Alloy Wire Cr30Ni70 (NiCr7030, ХН70Ю) is a high-performance alloy made of 30% chromium and 70% nickel, offering excellent high-temperature resistance, corrosion resistance, and good electrical resistivity. This alloy is particularly suitable for applications in industries requiring durability in high-temperature environments, such as electrical heating elements, resistors, and industrial furnaces. NiCr Alloy Wire Cr30Ni70 (NiCr7030, ХН70Ю) is an excellent choice for applications requiring high-temperature stability, corrosion resistance, and consistent electrical resistivity. Its ability to perform under extreme heat makes it a top contender for industries involved in heating elements, resistors, and industrial furnaces. While it comes at a higher cost than basic alloys, its robust performance in demanding environments justifies its use in applications where longevity and reliability are critical.

    Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys


    Type



    Performance

    Cr30Ni70Cr15Ni60Cr20Ni35Cr20Ni80Cr20Ni30Cr25Ni20
    Main Chemical compositionNiRest55.0-61.034.0-37.0Rest30.0-34.019.0-22.0
    Cr28.0-31.015.0-18.018.0-21.020.0-23.018.0-21.024.0-26.0
    Fe≤ 1.0RestRest≤ 1.0RestRest
    Max. continuous service temp. of element (℃)125011501100120011001050
    Resistivity at 20 ℃(μΩm)1.18±0.051.12±0.051.04±0.051.09±0.051.06±0.050.95±0.05
    Density(g/cm3)8.108.207.908.407.907.15
    Thermal condyctivity (KJ/m·h·℃)45.245.243.860.343.843.8
    Coefficient of lines expansion (α×10-6/℃)17.017.019.018.019.019.0
    Melting point (approx.)(℃)138013901390140013901400
    Elonation at rupture(%)>20>20>20>20>20>20
    Micrographic structureAusteniteAusteniteAusteniteAusteniteAusteniteAustenite
    Magnetic propertiesNon-magneticLow-magneticLow-magneticNon-magneticLow-magneticNon-magnetic
    Note:The various grades of electric resistance alloy material are blended with the amountof rare earth, titanium and other trace elements, to improve the processing performance andextend the period of the uselife.

    Chemical Composition Wt.% Cr30Ni60%NiFeCSiMnPSCrAl
    Min0.7528
    MaxRest0.080.081.60.60.020.015310.5

    Key Features of NiCr Alloy Wire (Cr30Ni70, NiCr7030, ХН70Ю):

    • Composition:

    Nickel (Ni): 70% (primary element for high-temperature stability and corrosion resistance).

    Chromium (Cr): 30% (provides oxidation resistance and improves the alloy's high-temperature strength).

    Carbon (C): Small amount, improving strength and resistance to wear.

    Iron (Fe): Trace amounts, used for structural integrity.

    Other trace elements may include manganese, silicon, and sulfur.

    • High-Temperature Resistance:

    Performs well in high-temperature environments, making it ideal for heating elements and resistors used in applications requiring stable performance at elevated temperatures, often up to 1000°C to 1100°C (1832°F to 2012°F).

    • Corrosion and Oxidation Resistance:

    Excellent Oxidation Resistance: Chromium content ensures the alloy maintains its structural integrity by forming a protective oxide layer when exposed to high temperatures, preventing further degradation.

    Resistant to Scaling and Sulfidation: Performs well in environments that involve high temperatures and exposure to sulfur-containing atmospheres.

    • Electrical Resistivity:

    Moderate Electrical Resistivity: Offers reliable and stable resistive properties, making it suitable for use in resistors, heating elements, and thermocouples.

    Stable Resistance at Elevated Temperatures: The alloy maintains stable resistance across a wide range of operating temperatures.

    • Mechanical Properties:

    Tensile Strength: Provides good tensile strength at high temperatures, allowing it to withstand mechanical stresses in industrial heating applications.

    Ductility: Exhibits good ductility for forming and shaping into wires or strips for industrial uses.

    • Weldability and Fabrication:

    Weldable: NiCr7030 can be welded using standard techniques, including gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW).

    Formability: Can be easily drawn into wires and other shapes without compromising performance.


    Applications:

    • Heating Elements: Commonly used in electrical heating systems such as electric furnaces, ovens, dryers, and toasters.
    • Resistors: Ideal for manufacturing precision resistors and thermal sensors.
    • Electrical and Electronics: Used in thermocouples and resistance temperature detectors (RTDs).
    • Industrial Furnaces: Widely used in industrial heating elements for applications involving high heat or thermal cycling.

    Advantages of NiCr Alloy Wire (Cr30Ni70, NiCr7030, ХН70Ю):

    • High-Temperature Stability: Performs reliably at elevated temperatures up to 1100°C (2012°F).
    • Oxidation and Corrosion Resistance: Ensures durability and longevity in high-temperature, corrosive environments.
    • Electrical Stability: Offers stable electrical resistivity, ideal for heating elements and resistors.
    • Weldability and Fabrication: Easily processed into wires and welded for various industrial applications.
    • Durable and Long-Lasting: Suitable for demanding applications that require high mechanical strength and resistance to thermal stress.

    Limitations of NiCr Alloy Wire (Cr30Ni70, NiCr7030, ХН70Ю):

    • Cost: Higher cost compared to regular metals due to its specialized properties and composition.
    • Limited Resistance to Strong Acids: Although it is resistant to oxidation and sulfidation, it may not perform well in highly acidic or chloride-rich environments compared to other alloys like Inconel.
    • Work Hardening: The alloy may harden when cold-worked, which can require additional processing steps for machining.

    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)
    0.0180.0002550.0021173410-46100.250.049090.407420.88-23.54
    0.0200.0003140.0026062940-37400.280.061580.511116.64-18.76
    0.0220.0003800.0031542440-31000.300.070690.586714.49-16.35
    0.0250.0004910.0040751880-24000.320.075480.626512.74-14.36
    0.0280.0006160.0051131530-18700.330.085530.709912.20-13.40
    0.0300.0007070.0058681338-16960.380.11340.94129.13-10.09
    0.0320.0008040.0066731180-14400.400.12571.04338.24-9.108
    0.0350.0009620.007985981-12000.410.1321.09567.68-8.89
    0.0400.0012570.01043780.7-954.10.450.1591.31976.51-7.196
    0.0450.001590.0132594-7260.500.19631.62935.273-5.829
    0.0500.0019630.01629499.6-610.60.550.23761.97214.518-4.994
    0.0550.002380.01975407-4770.600.28272.34643.797-4.197
    0.0630.003120.02590321.41-377.310.650.33182.75393.235-3.575
    0.0700.003850.03196260.5-305.90.700.38483.19382.789-3.083
    0.0800.0050270.04172199.5-234.10.750.44183.66692.43-2.686
    0.0900.0063620.0528157.6-185.00.800.50274.17242.136-2.36
    0.1000.0078540.0652127.7-149.90.850.56744.70941.891-2.091
    0.1100.0098520.08177105.5-123.90.900.63625.28051.687-1.865
    0.1200.012270.101888.67-104.10.950.70885.8831.46-1.62
    0.1400.015390.127765.85-75.771.000.78546.51881.367-1.511
    0.1500.017670.146756.75-66.631.100.95037.88751.13-1.26
    0.1600.020110.0166950.42-58.001.120.98528.17721.05-1.17
    0.1700.0227000.188444.18-51.861.181.09369.07690.95-1.05
    0.1800.025450.211240.26-45.401.201.31310.89790.79-0.87
    0.1900.028350.235335.37-41.531.301.32711.01410.78-0.86
    0.2000.031420.260832.62-36.781.401.53912.77370.70-0.77
    0.2120.0353000.293028.41-33.351.501.76714.66610.60-0.67
    0.2200.038010.315526.65-30.391.602.01116.89240.52-0.58

    The tolerance or wires diameter


    WiresDia.(mm)Tolerance
    0.018-0.025±0.001
    0.028-0.035±0.0015
    0.040-0.055±0.002
    0.070±0.0025
    0.08-0.10±0.003
    0.11-0.14±0.004
    0.16-0.20±0.005
    0.22-0.25±0.006
    0.28-0.30±0.007
    0.32-0.40±0.01
    0.41-0.50±0.015
    0.55-0.80+0.02/-0.03
    0.85-1.00+0.02/-0.03
    1.10-1.50±0.03
    Note:special specification can be produced as per client's request.

    Technical data of ribbon


    Thickness × Width(mm)Resistance/meter(20 ℃) (Ω/m)Surface area/ohm (20℃) (cm2/Ω)Weight/meter (g/m)Surface area/meter (cm2/m)
    0.09x2.55.279.841.7251.8
    0.08x0.2740.07560.1225.6
    0.08x0.349.40.1540.1837.6
    0.08x0.4370.2590.2449.6
    0.08x0.529.60.3920.30511.6
    0.08x0.624.70.5510.36713.6
    0.08x0.721.20.7370.42815.6
    0.08x0.818.50.9510.48917.6
    0.08x0.916.51.190.5519.6
    0.08x1.014.81.460.61121.6
    0.08x1.212.32.070.73325.6
    0.08x1.59.873.20.91631.6
    0.08x1.88.234.571.137.6
    0.08x2.07.45.621.2241.6
    0.07x0.284.60.06380.1075.4
    0.07x0.356.40.1310.167.4
    0.07x0.442.30.2220.2149.4
    0.07x0.533.90.3370.26711.4
    0.07x0.628.20.4750.32113.4
    0.07x0.724.20.6370.37415.4
    0.07x0.821.20.8220.42817.4
    0.07x0.918.81.030.48119.4
    0.07x1.016.91.260.53521.4
    0.07x1.214.11.80.64125.4
    0.07x1.511.32.780.80231.4
    0.06x0.298.70.05270.09165.2
    0.06x0.365.80.1090.1377.2
    0.06x0.449.40.1860.1839.2
    0.06x0.539.50.2840.22911.2
    0.06x0.632.90.4010.27513.2
    0.06x0.728.20.5390.32115.2
    0.06x0.824.70.6970.36717.5
    0.06x0.921.90.8750.41219.2
    0.06x1.019.71.070.45821.2
    0.06x1.216.51.530.5525.2
    0.05x0.21180.04220.07645.00
    0.05x0.3790.08860.1157.00
    0.05x0.459.20.1520.1539.00
    0.05x0.547.40.2320.19111.00
    0.05x0.639.50.3290.22913.00
    0.05x0.733.90.4430.26715.0
    0.05x0.829.60.5740.30517.0
    0.05x0.916.30.7220.34419.0
    0.05x1.023.70.8860.38221.0
    Ribbon is rolled by the wire, the actual cross-sectional area of the ribbon is smaller 8% than calculated by the rectangular.

    Quality Cr30Ni70/NiCr7030/ХН70Ю NiCr Alloy With Weldability And Fabrication For Resistors for sale
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