Hangzhou Ualloy Material Co.,Ltd

Hangzhou Ualloy Material Co.,Ltd is one of the best nichrome alloy ni70cr30 manufacturers and suppliers in China,Website:://.alloystrip.com, welcome to buy discount and low price cr30ni70, n70, nikrothal 70, resistohm 70, alloy 710 from us, and also welcome to check the price and quotation with our factory. Ni70Cr30 (Common Name:Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70/30, Resistohm 70, Balco,Tophet 30,Cronix 70,Alloy 710,Stablohm 710) Ni70Cr30 is a nickel-chromium alloy (NiCr alloy) characterized byHigh resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1250°C. Typical applications for Ni70Cr30 are used in electrical heating elements in industrial furnace,and well suited for reducing atmospheres. Normal composition% C P S Mn Si Cr Ni Al Fe Other Max 0.05 0.02 0.015 0.60 0.75~1.60 28.0~31.0 Bal. Max 0.50 Max 1.0 - Typical Mechanical properties（1.0mm） Yield strength Tensile Strength Elongation Mpa Mpa % 430 820 30 Typical Physical properties Density (g/cm3) 8.2 Electrical resistivity at 20℃(Ωmm2/m) 1.18 Conductivity coefficient at 20℃ (WmK) 14 Coefficient of thermal expansion Temperature Coefficient of Thermal Expansion x10-6/℃ 20 ℃- 1000℃ 17 Specific heat capacity Temperature 20℃ J/gK 0.46 Melting point (℃) 1380 Max continuous operating temperature in air (℃) 1250 Magnetic properties non-magnetic Temperature Factors Of Electrical Resistivity 20℃ 100℃ 200℃ 300℃ 400℃ 500℃ 600℃ 1 1.007 1.016 1.028 1.038 1.044 1.036 700℃ 800℃ 900℃ 1000℃ 1100℃ 1200℃ 1300℃ 1.03 1.028 1.029 1.033 1.037 1.043 - Style of supply Alloys Name Type Dimension Ni70Cr30W Wire D=0.03mm~8mm Ni70Cr30R Ribbon W=0.4~40 T=0.03~2.9mm Ni70Cr30S Strip W=8~250mm T=0.1~3.0 Ni70Cr30F Foil W=6~120mm T=0.003~0.1 Ni70Cr30B Bar Dia=8~100mm L=50~1000