Main Applications
Our high resistance electric heating alloy has a wide range of temperatures. The highest temperature can reach 1,400¡æ.Besides, we have eleven different kinds of alloys, each type has its own temperature range and resistivity. So our products have various applications.
Over a long period of time, our products (Fe-Cr-Al/Ni-Cr) high resistance and heating alloy materials are salable and widely used in various industries, such as metallurgical, chemical, glass, ceramic, and electrics for instance, they can be used for industrial and civil heating-furnace, infrared equipment, liquefied gas infrared heat-resisting net, different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors and so on.
Meanwhile our products are ideal materials for heating elements of electric stove, electric teapot, electric iron, electric blower, soldering-iron, electric water heater and indoor air-conditioner and etc.
Specifications Standard: (GB/T 1234¡¢Q/IYRO 01)
Main characteristics of Fe-Cr-Al- high resistances and electric heating alloys
|
|
1Cr13Al4 |
0Cr25Al5 |
0Cr21Al6 |
0Cr23Al5 |
0Cr21Al4 |
0Cr21Al6Nb |
0Cr27Al7Mo2 |
|
Main chemical composition£¥ |
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
amount |
opportune
amount |
opportune
amount |
opportune
amount |
opportune
amount |
opportune
amount |
opportune
amount |
|
Fe |
Rest |
Rest |
Rest |
Rest |
Rest |
Rest |
Rest |
|
|
|
|
|
|
|
Nb0.5 |
Mo1.8-2.2 |
|
Max.continuous
service temp.of
element (¡æ) |
950 |
1250 |
1250 |
1250 |
1100 |
1350 |
1400 |
|
Resistivity
¦Ì¦¸.m,20¡æ |
1.25 |
1.42 |
1.42 |
1.35 |
1.23 |
1.45 |
1.53 |
|
Density
(g/cm3 ) |
7.4 |
7.10 |
7.16 |
7.25 |
7.35 |
7.10 |
7.10 |
|
Thermal
conductivity
KJ/m.h.¡æ |
52.7 |
46.1 |
63.2 |
60.2 |
46.9 |
46.1 |
45.2 |
|
Coefficient of
lines expansion
¦Á¡Á10-6/¡æ |
15.4 |
16.0 |
14.7 |
15.0 |
13.5 |
16.0 |
16.0 |
|
Melting point¡æ |
1450 |
1500 |
1500 |
1500 |
1500 |
1510 |
1520 |
|
Tensile strength
Mpa |
580-680 |
630-780 |
630-780 |
630-780 |
600-700 |
650-800 |
680-830 |
|
Elongation at
rupture % |
>16 |
>12 |
>12 |
>12 |
>12 |
>12 |
>10 |
|
Variation of
area % |
65-75 |
60-75 |
65-75 |
65-75 |
65-75 |
65-75 |
65-75 |
|
Repeat bending
frequency(F/R) |
>5 |
>5 |
>5 |
>5 |
>5 |
>5 |
>5 |
|
Hardness(H.B.) |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
|
Micrographic
structure |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
|
Magnetic
properties |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
|
