Txais tos rau peb lub vev xaib!
Txhim khu kev qha zoo FeCrAl27/7 Tus neeg muag khoom 0cr27al7mo2 Hlau Hauv Qhov Kub Kub
Nominal Analysis
27.00 Cr, 7.00 Nws, 2.00 Mo, Bal. Fe
Max continineous ua hauj lwm kub: 1400 C.
Hlau txoj kab uas hla: 0.5 ~ 12mm
Melting kub: 1520 C
Hluav taws xob tiv taus: 1.53 ohm mm2 / m
Nws tau siv dav hauv cov khoom siv cua sov hauv cov khoom siv hluav taws xob thiab hluav taws xob kilns.
Muaj zog kub tsawg dua Tophet alloys tab sis ntau dua melting point.
| Chemical Composition thiab Main Property ntawm Fe-Cr-Al Resistance Alloy | ||||||||
| Properties \ Qib | 1Cr13Al4 | 0c25l 5 | 0c21 ua 6 | 0c23l 5 | 0c21 ua 4 | 0Cr21Al6 Nb | 0Cr27Al7Mo2 | |
| Lub ntsiab Chemical Composition (%) | Cr | 12.0-15.0 Nws | 23.0-26.0 Nws | 19.0-22.0 Nws | 22.5-24.5 Nws | 18.0-21.0 Nws | 21.0-23.0 Nws | 26.5-27.8 Nws |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 Nws | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 Nws | 6.0-7.0 Nws | |
| Re | muaj caij nyoog | muaj caij nyoog | muaj caij nyoog | muaj caij nyoog | muaj caij nyoog | muaj caij nyoog | muaj caij nyoog | |
| Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
| n0.5 ib | Mo1.8-2.2 | |||||||
| Max Continuous Service Temperature (oC) | 950 ua | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Kev tiv thaiv 20oC (Ω mm2 / m) | 1.25 ± 0.08 hli | 1.42 ib ± 0.06 | 1.42 ib ± 0.07 hli | 1.35 Nws ± 0.07 hli | 1.23 ± 0.07 hli | 1.45 Nws ± 0.07 hli | 1.53 ib ± 0.07 hli | |
| Qhov ceev (g / cm3) | 7.4 ib | 7.1 | 7.16 | 7.25 Nws | 7.35 Nws | 7.1 | 7.1 | |
| Thermal conductivity | 52.7 ib | 46.1 ib | 63.2 ib | 60.2 ib | 46.9 ua | 46.1 ib | 45.2 ib | |
| (KJ/m@h@oC) | ||||||||
| Coefficient ntawm Thermal Expansion (α × 10-6 / oC) | 15.4 ib | 16 | 14.7 ib | 15 | 13.5 Nws | 16 | 16 | |
| Kwv yees Melting Point (oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile zog (N / mm2) | 580-680 : kuv | 630-780 : kuv | 630-780 : kuv | 630-780 : kuv | 600-700 Nws | 650-800 Nws | 680-830 : kuv | |
| Elongation (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
| Tshooj Variation | 65-75 : kuv | 60-75 : kuv | 65-75 : kuv | 65-75 : kuv | 65-75 : kuv | 65-75 : kuv | 65-75 : kuv | |
| Shrink Rate (%) | ||||||||
| Repeedly Khoov zaus (F / R) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
| Hardness (HB) | 200-260 Nws | 200-260 Nws | 200-260 Nws | 200-260 Nws | 200-260 Nws | 200-260 Nws | 200-260 Nws | |
| Lub Sijhawm Ua Haujlwm Txuas Ntxiv | no | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
| Micrographic Structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic Property | Sib nqus | Sib nqus | Sib nqus | Sib nqus | Sib nqus | Sib nqus | Sib nqus | |
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