Expressive name — fechral, consonant sound of a steel blade through the air. At the same time it felt lightness and formidable force. And this emotional perception fully confirms the quality of the material. This alloy has three components: the chromium, aluminum and iron. Hence the name: Fairy — Ferrum (70−80% Fe), xp — Cr and Al — Al. Also present are limited additions of silicon (1%) and manganese (0.7%). To impart plasticity sometimes added nickel, but it leads to higher cost.
Quality fehrali GS SY
The main advantages are considered to be a significant electrical resistance — up to 1.3 ohm mm2 / m and t ° okolo1450 ° C melting. High conversion yield makes it possible to use materials of the minimum section. Remarkable high corrosion resistance in a vacuum, oxidizing, sulfur- and carbon-containing environments, argon, air. Specific weight — 7.2 g / cm³ can save on weight — not less than 15%. Production costs fehrali 6 times lower than the cost of nichrome. Lack fehrali — excessive hardness and brittleness, impeding rolling. For the production of very fine yarns, this material is also not good. It is not possible to roll-section of less than 0.1 mm. Very thin strip obtained is not rolling, and electrolysis.
The most popular brands are considered — H23YU5, H23YU5T, H15YU5. The latter is most often used for the production of the tape, and H23YU5T — for rolling wire. There are also other names of these brands, such as evrofehral. Manufacturers may give the material its own name, but at the same time they should be parallel to the point international markings.
Physical properties fehrali GS SY
|Alloy||Tensile Strength N / mm2||Elongation at break (%)||Density g / cm3||The electrical resistivity (Ωmm2 / m)||The maximum continuous operation temperature (° C)||t ° Melting (° C)||Thermal conductivity (KJ / m * h * ° C)||The coefficient of linear expansion (αx10−6 / ° C)||Service life, hours|
|H21YU4||600−700||>12||7.35||1.23 ± 0.05||1100||1500||46.9||13.5||> 4000|
|H21YU6B||650−800||>12||7.10||1.45 ± 0.05||1350||1510||46.1||16.0||> 4000|
|H27YU7M||680−830||>10||7.10||1.53 ± 0.05||1400||1520||45.2||16.0||> 4000|
Fechral H21YU4 (Kanthal D)
73.2% Fe, 22% Cr, 4.8% Al, t ° Melting 1500 ° C. Also called Alchrome DK, Alloy 815, Kanthal D, Resistohm 135, Aluchrom 5 MEGAPIR, GS SY, evrofehral. Also available analogues: OCr15Al5, OCr25Al5, OCr21Al6Nb, 1Cr13AL4, OCr27Al7Mo2, FeCrAl + Y.
Buy at a bargain price
In stock company «Electrovek-steel» — unlimited range of heat-resistant metal-roll of the highest quality, which gives:
· Efficiency of supply in Ukraine and abroad
· An additional advantage of consumers who do not want the costs of warehouses and inventories.
· A wide range of different types of visual products.
We offer fechral at the best price to all who are interested in financial advantageous acquisition. If you are interested in specific issues related to the purchase, please contact our managers. The qualified experts will provide all necessary information on the product, the price range, the implementation conditions. The cost of goods depends on the parameters of products and additional conditions of supply.