METAL WIRE ALLOY X30H70 (NiCr)
METAL WIRE ALLOY X30H70 (NiCr)
Analogue: Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70 / 30, Resistohm 70, Balco, Tophet 30, Cronix 70, Alloy 710, Stablohm 710
X30Н70 (М118 alloy) is a nickel-chromium alloy (NiCr alloy), which is characterized by high specific resistance, good oxidation resistance, very good shape stability, good ductility and excellent weldability. Operating temperature up to 1250 ° C.
Typical applications: М118 is used in electric heating elements, in industrial furnaces, etc.
CHEMICAL 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 | - |
MECHANICAL PROPERTIES(1.0 mm）
Yield strength | Temporary resistance | Elongation |
MPa | MPa | % |
430 | 820 | 30 |
PHYSICAL PROPERTIES |
|
Density (g / cm3) |
8.2 |
Resistivity at 20 ℃ (µOhm * m) |
1.18 |
Heat conductivity coefficient at 20 ℃ (W / (m * K)) 14
TEMPERATURE EXPANSION RATIO
Thermal Expansion Coefficient x10-6 / ℃
20 - 1000 -17
SPECIFIC HEAT
Temperature 20 ℃
kJ / (kg * K) 0.46
Melting point (℃) 1380
Maximum continuous working air temperature (℃) 1250
Magnetic properties non-magnetic
TEMPERATURE ELECTRIC RESISTANCE COEFFICIENT
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 | - |
TYPES OF GOODS
Name | Product type | dimensions |
|
M118W | Wire | D = 0.03mm ~ 8mm |
|
M118R | Strip | W = 0.4 ~ 40mm | W = 0.4 ~ 40mm |
M118S | Tape | W = 8 ~ 200mm | W = 8 ~ 200mm |
M118F | Foil | W = 6 ~ 120mm | W = 6 ~ 120mm |
M118B | Bar | D = 8 ~ 100mm | D = 8 ~ 100mm |