Fecral strip Cr23Al5Ti
Advantages of eurofecral
— a high real resistance, mechanical strength;
— an increased resistance against an oxide formation, a thermal fatigue, an oxide scale at a temperature of 1200ºС;
— a great corrosive resistance on air, in a vacuum and oxidizing environments;
The main field of use: in kilns, resistor elements, high-temperature furnaces, industrial tubular heating elements and heaters.
|CrAl 20 5||1.4725||В 603 II B*|
K 92 400
|Fe||Al||Cr||C||Si||Mn||Cu||Ti||Ni||Other||Rare earth elements|
|Basis||4.6−5.8||21.0- 23.5||Max. 0.05||Max. 0.6||
|---||Max 0.6||Max, 0.6||Zr, Max. 0.3|
Mechanical characteristics t°20°C
|Percentage extension||Number of bowings|
> 5 times
Physical characteristics t°20°C
|Hardness||Density||Electrical resistivity||Breaking load||Maximum working temperature||Magnetism||Melting point (ºС)|
|200−260 HB||7.1 гр/см³||1.40 Ohm-mm2/m||637−784 m/Pа||1300 ºС||Magnetic||1500 ºС|
|Cross-section. 6,0 mm and more||t° 1200°С||over 3500 h|
|Cross-section 3,0−6,0 mm||t° 1150°С||over 1800 h|
|Cross-section 1,5−3,0 mm||t° 1100°С||over 1800 h|
|Cross-section 0,4−1,5 mm||t° 1000°С|
over 900 h
Cr23Al5T is an ideal alloy with an excessive specific real resistance (1,20−1,30 Ohm-mm2/m) which combine a heat resistance up to 1450 °C. It is claimed to be indispensable at temperature extremes. These properties allow using this alloy extensively while manufacturing heating units. It has a perfect corrosive resistance on air, in argon, in a vacuum, oxidizing, sulfur-containing and carboniferous environments. It shows not a very high relative density (7,2 g/cm3), but it has a great flow limit.
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