Nickel Chromium Alloy 40 Resistance Ribbon Ni40cr20 Hluav taws xob rhaub hlau
Nickel Chromium Resistance Alloy Resistohm 40 Resistance Ribbon Ni40cr20 hluav taws xob rhaub Hlau
Ni40Cr20yog ib qho austenitic nickel-chromium alloy (NiCr alloy) rau kev siv kub txog li 1100 ° C (2010 ° F). Cov alloy yog tus cwj pwm los ntawm kev ua haujlwm siab thiab zoo oxidation tsis kam. Nws muaj ductility zoo tom qab siv thiab zoo weldability.
Tej daim ntawv thov rauNi40Cr20yog hmo ntuj-storage heaters, convection heaters, hnyav luag hauj lwm rheostats thiab kiv cua tso cua sov. Cov hlau tseem siv tau rau cov cua sov cables thiab hlua cov cua sov hauv defrosting thiab de-icing ntsiab lus, hluav taws xob pam vov thiab ntaub qhwv, lub rooj zaum hauv tsheb, baseboard heaters thiab pem teb heaters, resistors.
CHEMICAL COMPOSITION
| C% | Si% | Mn% | Cr% | Ni% | Fe% | |
| Nominal Composition | Bal. | |||||
| Min | - | 1.6 | - | 18.0 Nws | 34.0 Nws | |
| Max | 0.10 | 2.5 | 1.0 | 21.0 Nws | 37.0 Nws |
MECHANICAL PROPERTIES
| Hlau Loj | Yield zog | Tensile zog | Elongation | Hardness |
| Ø | R 0.2 tsi | Rm | A | |
| mm | Mpa | MPa | % | Hv |
| 1.0 | 340 | 675 ib | 25 | 180 |
| 4.0 | 300 | 650 | 30 | 160 |
Lub cev muaj zog
| Qhov ceev g / cm3 | 7.90 ib |
| Hluav taws xob tiv taus ntawm 20 ° C Ω mm / m | 1.04 ib |
| Kev siv kub siab tshaj ° C | 1100 |
| Melting point ° C | 1390 ib |
| Magnetic Property | Tsis-Magnetic |
TEMPERATURE FACTOR ntawm RESISTIVITY
| Kub kub ° C | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
| Ct | 1.03 ib | 1.06 ib | 1.10 | 1.112 ib | 1.15 | 1.17 | 1.19 | 1.04 ib | 1.22 | 1.23 | 1.24 |
COEFFICIENT NTAWM THERMAL EXPANSION
| Kub kub ° C | Thermal Expansion x 10-6 / K |
| 20-250 | 16 |
| 20-500 | 17 |
| 20-750 Nws | 18 |
| 20-1000 Nws | 19 |
