Dadansoddiad enwol
27.00 cr, 7.00 al, 2.00 mo, bal. Fefau
Tymheredd Gwaith Contineous Max: 1400 C.
Diamedr Gwifren: 0.5 ~ 12mm
Tymheredd Toddi: 1520 C.
Gwrthiant trydanol: 1.53 ohm mm2/m
Wedi cael ei ddefnyddio'n helaeth fel elfennau gwresogi mewn ffwrneisi diwydiannol ac odynau trydanol.
Mae ganddo lai o gryfder poeth nag aloion tophet ond pwynt toddi llawer uwch.
Deunydd Alloy Shanghai Tankii Co., Ltd.
Cyfansoddiad cemegol a phrif eiddo aloi gwrthiant Fe-CR-AL | ||||||||
Eiddo \ gradd | 1cr13al4 | 0cr25al5 | 0cr21al6 | 0cr23al5 | 0cr21al4 | 0cr21al6nb | 0cr27al7mo2 | |
Prif Gyfansoddiad Cemegol (%) | 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 | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
Nb0.5 | MO1.8-2.2 | |||||||
Tymheredd Gwasanaeth Parhaus MAX (OC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Remisivity 20oC (ω mm2/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 | |
Dwysedd (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Dargludedd thermol | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
(Kj/m@ h@ oc) | ||||||||
Cyfernod ehangu thermol (α × 10-6/oc) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Pwynt toddi bras (OC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Cryfder tynnol (n/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Elongation (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
Amrywiad adran | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Cyfradd crebachu (%) | ||||||||
Amledd plygu dro ar ôl tro (f/r) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
Caledwch (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Amser gwasanaeth parhaus | no | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
Micrograffig | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
Eiddo Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig |