- Mainpage
- Directory
- Nickel alloys
- Nichrome and Fechral
Fehralley tape X15Y5 - 1.4767 - alkrothal®
Fechral is an alloy of chromium, iron and aluminum. The name of the alloy reflects its composition: ferment — «fe», chrome — «hr», aluminum — «al». The basis of the alloy is iron. Its share in the alloy, as a rule, is more than 70%. The alloy is additionally alloyed with manganese, silicon, nickel additives are possible. Each type of alloy has its own marking, which depends on the content of the main components.
| Name | AISI / Grade | UNS | GOST | DIN / Werkstoff |
|---|---|---|---|---|
| Kathal APM | CrAl 25 5 | 92500 | X23SY5T | 1.4765 |
| Alkrothal 14 | CrAl 14 4 | K91670 | X15Y5 | 1.4725 |
| Kanthal D | CrAl 20 5 | K92400 | X23Y5 | 1.4767 |
Key Features
Fechral combines high melting t ° 1500 ° C and considerable electrical resistance: up to 1.3 ohmhmm 2 / m ,. The relatively low density (7.2 g / cm³) makes the alloy lighter than nichrome by 17%. Due to the use of inexpensive aluminum instead of a deficit of nickel, the cost of this alloy is reduced by a factor of 6 compared with nichrome. Fehral has a high corrosion resistance in a vacuum, in air, in a carbon-containing, oxidizing, sulfuric medium. The Achilles' heel of fehrali is fragility, making the manufacture of thin ribbons and wire difficult. This disadvantage is eliminated by additives of nickel, but then the price of production increases.
| Alloy | Chemical composition (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| Si | C | Cr | Mn | Fe | Al | Ti | Ni | |
| X23SY5T | ≤0.50 | ≤0.05 | 22.0−24.0 | ≤0.30 | Rest | 5.00−5.80 | 0.2−0.5 | ≤0.60 |
| X23Y5 | ≤0.60 | ≤0.05 | 21.5−23.5 | ≤0.30 | Rest | 4.60−5.30 | 0.15 — 0.40 | ≤0.60 |
| X13Si4 | ≤0.70 | ≤0.08 | 13.5−15.5.5 | ≤0.70 | Rest | 4.00−5.50 | 0.2−0.6 | ≤0.60 |
| X15Y5 | ≤0.70 | ≤0.08 | 14.5−15.5 | ≤0.70 | Rest | 4.50−5.50 | 0.2−0.6 | ≤0.60 |
| Physical properties of fecal | ||||
|---|---|---|---|---|
| Alloy | X15Y5 OCr15Al5 | X13O4 OCr13Al4 | X23JO5T OCr23Al5Ti | X23Y5 OCr23Al5 |
| Elongation at break (%) | >12 | >12 | >12 | >12 |
| Breaking strength N / mm2 | 590−690 | 580−680 | 630−780 | 630−780 |
| Density g / cm3 | 7.15 | 7.40 | 7.25 | 7.25 |
| Maximum continuous temperature (° C) | 750 | 650 | 1250 | 1250 |
| Specific electrical resistance (Ωmm2 / m) | 1.30 ± 0.05 | 1.25 ± 0.05 | 1.35 ± 0.05 | 1.35 ± 0.05 |
| Melting point (° C) | 1500 | 1450 | 1500 | 1500 |
| The coefficient of linear expansion (αx10−6 / ° C) | 15.6 | OCr13Al4 X13Si4 |
15.0 | 15.0 |
| Thermal conductivity (KJ / m * h * ° C) | 52.4 | 52.7 | 60.2 | 60.2 |
| Service life, h | > 4,000 | 580−680 | > 4,000 | > 4,000 |
Brands
The most popular brands are X2SiO5T, X3SiO5, and X23SO5. Usually, the brand X23S5T is used for the production of wire, and X15Si5 is used for the production of wires. Before purchasing the fechrali, it is necessary to familiarize yourself with the alloy marking according to the method of use. The alloy for the heating elements is marked H; For tubular electric heaters — heater; For resistance nodes — C.
Production and supply
Fechral wire is produced by pressing, drawing or rolling. It is wound on a coil or folded by a bay. Fechral tape is produced by the rolling or electrolysis method, after which it is rolled up by rolls. To get acquainted in more detail with the products, to clarify its main properties, you can make an order through the website of our company «Avek Global» LLC, which presents a huge assortment of heat-resistant alloys, including brands X23Y5S, X15Y5 and X23YU5.
INTERNATIONAL BRANDS
X23U5T -875 (W-KA1) contains 22% Cr, 72.2% Fe, 5.8% AL, t ° melting. 1500 ° C. International name: eurofehral, Kanthal D, Alloy 815, Alchrome DK, Resistohm 135, megapyr, Aluchrom 5, GS SY. Similar brands: OCr25Al5, 1Cr13AL4, OCr15Al5.
Kanthal D (X21YO) contains 22% Cr, 73.2% Fe, 4.8% Al, t ° melting 1,500 ° C. International name: eurofehral, Kanthal D, Alloy 815, Alchrome DK, Resistohm 135, megapyr, Aluchrom 5, GS SY. Similar brands: OCr27Al7Mo2, OCr15Al5, OCr21Al6Nb, FeCrAl + Y.
Buy at a bargain price
In the warehouse of Avek Global LLC there is a wide choice of heat-resistant alloys, which will satisfy any customer. Quality is guaranteed by full observance of technological norms of production. The implementation of orders — takes minimal time. Discounts for wholesale buyers are provided. Deliveries are carried out directly from the warehouse. This gives consumers a clear choice of products, as well as significant savings in inventory and premises.