Fecral alloy
Equivalent
| Grade | analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| Kh23Yu5T | 1.4765 | Buy from stock, view availability | |||
| X15Yu5 | 1.4725 | K91670 | Buy from stock, view availability | ||
| X15Yu5 | 1.4767 | K92400 | Buy from stock, view availability | ||
| X23Yu5 | EI595 | Buy from stock, view availability | |||
| X13Y4 | EI60 | 1.4725 | K91670 | Buy from stock, view availability |
FeCrAl (Kanthal) is an alloy of chrome, ferrum, aluminium. A composition of alloy is represented in its name. Ferrum — «Fe», Chrome — «Cr», Aluminium — «Al». Ferrum constitutes a basis of alloy. Its quantity in alloy is generally more than 70%. Additionally, it compounds with mangan, silicon, and sometimes with nickel. Every variation has its marking, which depends on a content of the main components.
| Name | AISI / Grade | UNS | GOST (all-Union State Standards) | DIN / Werkstoff |
| Kathal APM | CrAl 25 5 | 92 500 | Х23Ю5Т | 1.4765 |
| Alkrothal 14 | CrAl 14 4 | K91670 | Х15Ю5 | 1.4725 |
| Kanthal D | CrAl 20 5 | K92400 | Х23Ю5 | 1.4767 |
The main properties
This alloy combines a high temperature of melting (1500 °C) and mighty real resistance to 1,3 Ohm-mm2/m. Fairly low density (7,2 g/cm³) makes it lighter than nichrome for 17%. By virtue of using cheap aluminium instead of insufficient nickel, production cost becomes 6 times cheaper than when using nichrome. Fecral differs with a high corrosive resistance in a vacuum condition, on air, in carbon-bearing, oxidation, and a sulphuric environment. An Achilles' heel of fecral is a frailty. As a consequence, a manufacture of thin strips and wire is obstructed. This demerit can be eradicated with the masteralloys of nickel, but then a fecral alloy price becomes higher.
| Alloy | Si | C | Cr | Mn | Fe | Al | Ti | Ni |
| Cr23Al5Тi | ≤0.50 | ≤0.05 | 22.0−24.0 | ≤0.30 | Rest | 5.00−5.80 | 0.2−0.5 | ≤0.60 |
| Cr23Al5 | ≤0.60 | ≤0.05 | 21.5−23.5 | ≤0.30 | Rest | 4.60−5.30 | 0.15−0.40 | ≤0.60 |
| Cr13Al4 | ≤0.70 | ≤0.08 | 13.5−15.5 | ≤0.70 | Rest | 4.00−5.50 | 0.2−0.6 | ≤0.60 |
| Cr15Al5 | ≤0.70 | ≤0.08 | 14.5−15.5 | ≤0.70 | Rest | 4.50−5.50 | 0.2−0.6 | ≤0.60 |
Physical features
| Alloy | Cr15Al5 | Cr13Al4 | Cr23Al5Ti | Cr23Al5 |
| Elongation at break (%) |
›12 | ›12 | ›12 |
›12 |
| Breaking strength rupture limit Н/mm2 | 590−690 | 580−680 | 630−780 | 630−780 |
| Density g/cm3 | 7.15 | 7.40 | 7.25 | 7.25 |
| Maximum operating temperature (°C) | 750 | 650 | 1250 | 1250 |
| Electrical resistivity (Ohm-mm2/m) | 1.30 ±0.05 | 1.25 ±0.05 | 1.35 ±0.05 | 1.35 ±0.05 |
| Temperature of melting (°C) | 1500 | 1450 | 1500 | 1500 |
| Linear expansion coefficient (10−6/°С) | 15.6 | Cr13Al4 Cr13Al4 |
15.0 | 15.0 |
| Thermal conductivity (KJ/m*h*°C) | 52.4 | 52.7 | 60.2 | 60.2 |
| Durability (h) | ›4 000 | 580−680 | ›4 000 | ›4 000 |
Grades
The most popular grades are Cr23Al5T, Cr15Al5, Cr23Al5. Usually, grade Cr23Al5Ti is used for a manufacturing of a wire, and Cr15Al5 for a manufacturing of a strip. Before buying, it is necessary to get acquainted with a marking by means of using.
Manufacture, delivery
A wire is produced with a help of pressing, drawing and cogging methods. It can be spooled or coiled. A strip is produced with a help of cogging or electrowinning methods, after which it has to be rolled. By means of «Auremo» company’s website, where is represented a huge assortment of heat-resistant alloys, including eurofecral and such grades as Cr23Al5Ti, Cr15Al5, Cr23Al5, you can become acquainted in more detail with a production, to clarify its main properties and to make an order.
International grades
Cr23Al5Ti — 875 (W-KA1) consists of 22% of Cr, 72,2% of Fe, 5.8% of AL, t° of melting 1500 °C. International name: eurofecral, Kanthal D, Alloy 815, Alchrome DK, Resistohm 135, Megapyr, Aluchrom 5, GS SY. Analogous grades: OCr25Al5, 1Cr13AL4, OCr15Al5.
Kanthal D (Cr21Al) consists of 22% of Cr, 73,2% of Fe, 4,8% of Al, t° of melting 1500 °C. An international name: eurofecral, Kanthal D, Alloy 815, Alchrome DK, Resistohm 135, megapyr, Aluchrom 5, GS SY. Analogous grades: OCr27Al7Mo2, OCr15Al5, OCr21Al6Nb, FeCrAl+Y.
Fecral alloy supplier
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