Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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Cr30Ni70 Nichrome Alloy Eletrothermal Coil Strip,Sable Resistance For Heating Element,
NiCr70/30
Nickel chromium alloy with iron resistance electrothermal high resistivity, surface body well. At high temperature and high intensity,
and a good performance and processing may welding nature widely used metallurgical, electrical, mechanical components and electrical
manufacturing industries for doing heat resistance material.
NiCr Type:Cr20Ni80,Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr25Ni20 etc.Series electric flat belt, electric fire wire.
3.Product size:
Thickness : 0.02----4.0mm
Width: 2.5----250mm
Standard:GB1234-95
Bright and Smooth surface
Ni70Cr30
Chemical Content, %
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.08 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 28.0~31.0 | Bal. | Max 0.50 | Max 1.0 | - |
Mechanical Properties
| Max Continuous Service Temperature: Resisivity ( 20℃)/Ω·m::
Density: Thermal Conductivity: Coefficient of Thermal Expansion: Melting Point: Elongation: Micrographic Structure: Magnetic Property: | 1250℃ 1.18 +/-0.05 (Dia: <0.5mm) 1.20+/-0.05 (Dia: ≥0.50 mm) 8.1 g/cm3 45.2 KJ/m·h·℃ 17×10-6/℃ (20℃~1000℃) 1380℃ Min 20% Austenite nonmagnetic |
| Type | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
|
| ||||||
| Main chemical composition | Ni | Rest | 55.0~61.0 | Rest | 34.0~37.0 | 30.0~34.0 |
| Cr | 20.0~23.0 | 15.0~18.0 | 28.0~31.0 | 18.0~21.0 | 18.0~21.0 | |
| Fe | ≤1 | Rest | ≤1 | Rest | Rest | |
| Maximal Temperature(℃) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Resistance Temperature correction coefficient.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Melting point (℃) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Resistivityρ20℃(10-6Ω.m) | 800℃ | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000℃ | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200℃ | 1.025 |
| 1.043 |
|
| |
| Fast life value | Tem.(℃) | 1175 | 1100 | 1200 | 1050 | 1050 |
| hour(h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Specific gravity(g/cm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
| Elongation(%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Thermal(kj/m.h.℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Specific heat(20℃)j/g.℃ | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
| Extend strength(20~1000℃)α*10-6℃ | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
| Tensile strength(kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
| Repeatedly bending(F/R) | >12 | >12 | >12 | >12 | >12 | |
| Microstructure | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
Our Nichrome alloy are in the form of wire, ribbon, strip, coil.
Delivery conditions are:
Our major product line:
l Electric resistance alloy materials in wire, strip, tube, and bar form.
l Furnace products and heating systems:
