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Fe-Cr-Al-legearing mei hegere wjerstân en tsjinstberenstemperatuer as dy foar NiCr-legearing en hat ek in legere priis. Applikaasjes:
izer-chroom-aluminium elektryske wjerstannen wurde faak brûkt foar it meitsjen fan elektryske ferwaarmingseleminten yn húshâldlike apparaten en yndustriële oerflakken, pid-applikaasjes, fetpatronen, ionisaasjemasines, wetterferwaarmers, plestikfoarmen, soldeerbouten, metaalomhulde buisfoarmige eleminten en patroaneleminten. Gemyske ynhâld % Legeringsmateriaal | Gemyske gearstalling% |
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Oaren |
maks(≦) |
1Cr13Al4 | 0.12 | 0.0025 | 0.0025 | 0.7 | ≦1.00 | 12.5-15.0 | - | 3.5-4.5 | Rêst | - |
0Cr15Al5 | 0.12 | 0.0025 | 0.0025 | 0.7 | ≦1.00 | 14.5-15.5 | - | 4.5-5.3 | Rêst | - |
0Cr25Al5 | 0.06 | 0.0025 | 0.0025 | 0.7 | ≦0.60 | 23.0-26.0 | ≦0.60 | 4.5-6.5 | Rêst | - |
0Cr23Al5 | 0.06 | 0.0025 | 0.0025 | 0.7 | ≦0.60 | 20.5-23.5 | ≦0.60 | 4.2-5.3 | Rêst | - |
0Cr21Al6 | 0.06 | 0.0025 | 0.0025 | 0.7 | ≦1.00 | 19.0-22.0 | ≦0.60 | 5.0-7.0 | Rêst | - |
0Cr19Al3 | 0.06 | 0.0025 | 0.0025 | 0.7 | ≦1.00 | 18.0-21.0 | ≦0.60 | 3.0-4.2 | Rêst | - |
0Cr21Al6Nb | 0.05 | 0.0025 | 0.0025 | 0.7 | ≦0.60 | 21.0-23.0 | ≦0.60 | 5.0-7.0 | Rêst | Nb tafoegje 0.5 |
0Cr27Al7Mo2 | 0.05 | 0.0025 | 0.0025 | 0.2 | ≦0.40 | 26.5-27.8 | ≦0.60 | 6.0-7.0 | Rêst | |
Klasse | 1Cr13Al4 | TK1 | 0Cr25Al5 | 0Cr20Al6RE | 0Cr23Al5 | 0Cr19Al3 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
Nominale gearstalling% | Cr | 12.0-15.0 | 22.0-26.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
Al | 4.0-6.0 | 5.0-7.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 |
Re | geunstich | 0.04-1.0 | geunstich | geunstich | geunstich | geunstich | geunstich | geunstich |
Fe | Bal. | | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
| | | | | | | Nb0.5 | Mo1.8-2.2 |
Maksimale wurktemperatuer (°C) | 650 | 1400 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
Wjerstân 20 ℃ (Ω / mm2 / m) | 1.25 | 1.48 | 1.42 | 1.40 | 1.35 | 1.23 | 1.45 | 1.53 |
Dichtheid (g/cm³) | 7.4 | 7.1 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
Termyske geliedingsfermogen by 20 ℃, W/(M·K) | 0.49 | 0.49 | 0.46 | 0.48 | 3.46 | 0.49 | 0.49 | 0.49 |
Lineêre útwreidingskoëffisjint (× 10¯6/℃) 20-1000℃ | 15.4 | 16 | 16 | 14 | 15 | 13.5 | 16 | 16 |
Ungefear smeltpunt (℃) | 1450 | 1520 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
Treksterkte (N/mm2) | 580-680 | 680-830 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
Ferlinging (%) | ›16 | ›10 | ›12 | ›12 | ›12 | ›12 | ›12 | ›10 |
Krimprate fan seksjefariaasje (%) | 65-75 | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
Werhelle bûgfrekwinsje (F/R) | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 |
Hurdens (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 |
Mikrografyske struktuer | Ferriet | Ferriet | Ferriet | Ferriet | Ferriet | Ferriet | Ferriet | Ferriet |
Magnetyske Eigenskip | Magnetysk | Magnetysk | Magnetysk | Magnetysk | Magnetysk | Magnetysk | Magnetysk | Magnetysk |
Fluch libben (o/℃) | no | ≥80/1350 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 |
Foarige: NiCr 80/20 termyske spuittried foar bôgespuiten: Heechprestaasje-coatingoplossing Folgjende: Nikkellegering Hastelloy C276 Ernicrmo-4 Lassen MIG TIG Lassen Inconel C-276 C22, B3, B2 Tried