Filum mixturae niccoli chromiiNi70Cr30
Lamina spiralis electrothermica ex mixtura nichromatica Cr30Ni70, resistentia sabulosa ad elementum calefaciens.
NiCr70/30
Nickel chromium mixtura cum resistentia ferri electrothermica alta resistivitate, superficie corporis bene sexualis. Alta temperatura et alta intensitate,
et bona perfunctio et processus fortasse natura soldadurae late adhibita in componentibus metallurgicis, electricis, mechanicis et electricis
Industriae fabricatoriae ad materiam resistentiam caloris faciendam.
Typus NiCr: Cr20Ni80, Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr25Ni20 etc. Series cinguli plani electrici, filum ignis electrici.
3. Magnitudo producti:
Crassitudo: 0.02—-4.0mm
Latitudo: 2.5—-250mm
Norma: GB1234-95
Superficies clara et levis
Ni70Cr30
Contentum Chemicum, %
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Alia |
Maximus | |||||||||
0.08 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 28.0~31.0 | Bal. | Maximus 0.50 | Maximus 1.0 | - |
Proprietates Mechanicae
Temperatura Maxima Continuae Servitii: Resistivitas (20ºC)/Ω·m::Densitas: Conductivitas Thermalis: Coefficiens Expansionis Thermalis: Punctum Liquefactionis: Elongatio: Structura Micrographica: Proprietas Magnetica: | 1250ºC 1.18 +/-0.05 (Diameter: <0.5mm) 1.20+/-0.05 (Dia: ≥0.50 mm) 8.1 g/cm³ 45.2 KJ/m·h·ºC 17×10⁻⁶/°C (20°C~1000°C) 1380°C Minimum 20% Austenita non magneticus |
Typus | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
Compositio chemica principalis | Ni | Requies | 55.0~61.0 | Requies | 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 | Requies | ≤1 | Requies | Requies | |
Temperatura Maxima (ºC) | 1200 | 1150 | 1250 | 1100 | 1100 | |
Coefficiens correctionis temperaturae resistentiae (CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
Punctum fusionis (ºC) | 1400 | 1390 | 1380 | 1390 | 1390 | |
Resistivitas ρ20ºC(10-6Ω.m) | 800°C | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
1000ºC | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
1200ºC | 1.025 | 1.043 | ||||
Valor vitae celeris | Temperatura (ºC) | 1175 | 1100 | 1200 | 1050 | 1050 |
hora (h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
Pondus specificum (g/cm³) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
Elongatio (%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
Thermalis (kj/mhºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Calor specificus (20ºC) j/g.ºC | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
Extende robur (20~1000ºC) α*10-6ºC | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
Robur tensile (kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
Iterum flectens (A/R) | >12 | >12 | >12 | >12 | >12 | |
Microstructura | Austenitica | Austenitica | Austenitica | Austenitica | Austenitica |
150 0000 2421