Alkrothal 720 No.1 JR FecrAl Alloy quia resistor fregit
Alkrothal 720 No.1 JRquia fregit resistor
Applicationes typicae pro Alkrothal 720 sunt in rheostats, resistentibus braking etc. Ponitur etiam ut elementa calefactoria electrica in applicationibus industrialibus.
Alkrothal 720 est ferriticum chromium-aluminium ferreum stannum (Alaymus FeCrAl) usu temperaturae usque ad 1000°C (1830°F).
Nominal Analysis
| Cr | Al | Fe |
| 12.0~15.0 | 4.0~6.0 | Libra |
Mechanica Properties
| Max continuum Service Temperature: Resisivity 20ºC: Densitas: Scelerisque Conductivity: Coefficiens Scelerisque Expansion: Liquefactio Point: Prolongatio: Micrographic Structura: Magnetic Property: | 950ºC 1.25ohm mm2/m 7.40g/cm3 52.7 KJ/m·h·ºC 15.4×10-6/ºC (20ºC~1000ºC) 1450ºC Min 16% Ferrite magneticus |
Magnitudo: Crassitudo 0.01-7mm, latitudo 0.5-1000mm
Superficies: BA, 2B
Duritia: Mollis, Dimidium durum, durum
Extensio adhibita est magna potentia resisoris et fornacis calefaciendi elementa fregit.
Minus calidum robur quam Tophet admixtum habet, sed multo altius punctum liquescens.
Shanghai TANKII MATERIA Co., Ltd.
FECRAL ET ALCHROMA ADMISSUS PARENS IN China, PROFESSIONIS IN MUNDO
Addimus etiam infra gradus:
0Cr15Al5 et 0Cr19Al3, etc.
| Chemical Composition and Main property of Fe-Cr-Al Resistentia Alloy | ||||||||
| Properties Grade | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Principalis compositio chemica (%) | Cr | 12.0-15.0 | 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 | 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 | opportunum | opportunum | opportunum | opportunum | opportunum | opportunum | opportunum | |
| Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max continuum Service Temperature (OC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resisivity 20oC (Ωmm2/m) | 1.25 ±0.08 | 1.42 ±0.06 | 1.42 ±0.07 | 1.35 ±0.07 | 1.23 ±0.07 | 1.45 ±0.07 | 1.53 ±0.07 | |
| Densitas (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Scelerisque Conductivity | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| (KJ/m@h@oC) | ||||||||
| Coefficiens Scelerisque Expansion (α× 10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Proximus liquens Point (oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile Strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Prolongatio(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Sectio Variationis | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Horreat Rate (%) | ||||||||
| Saepe Flecte Frequency (F / R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| duritia. | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Continua Service Time | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Micrographic Structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic Property | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
