Material Designation |
Other Name |
Rough Chemical Composition |
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|
|
Ni |
Cr |
Fe |
Nb |
Al |
Rest |
Nickel Chrome |
|
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Cr20Ni80 |
NiCr8020 |
80.0 |
20.0 |
|
|
|
|
Cr15Ni60 |
NiCr6015 |
60.0 |
15.0 |
20.0 |
|
|
|
Cr20Ni35 |
NiCr3520 |
35.0 |
20.0 |
45.0 |
|
|
|
Cr20Ni30 |
NiCr3020 |
30.0 |
20.0 |
50.0 |
|
|
|
Iron Chrome Aluminum |
|
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OCr25Al5 |
CrAl25-5 |
|
23.0 |
71.0 |
|
6.0 |
|
OCr20Al5 |
CrAl20-5 |
|
20.0 |
75.0 |
|
5.0 |
|
OCr27Al7Mo2 |
|
|
27.0 |
65.0 |
0.5 |
7.0 |
0.5 |
OCr21Al6Nb |
|
|
21.0 |
72.0 |
0.5 |
6.0 |
0.5 |
Material Designation |
Service Properties |
Applications |
Nickel Chrome |
|
|
Cr20Ni80 |
Contains long life additions making it eminently suitable for applications subject to frequent switching and wide temperature fluctuations. Can be used at operating temperatures up to 1150 °C. |
Control resistors, high temperature furnaces, soldering irons. |
Cr15Ni60 |
A Ni/Cr alloy with balance mainly Iron, with long life additions. It is suitable for use up to 1100 °C, but the higher coefficient of resistance makes it suitable for less exacting applications than 80/20. |
Electric heaters, heavy duty resistors, electric furnaces. |
Cr20Ni35 |
Balance mainly Iron. Suitable for continous operation up to 1050°C, in furnaces with atmospheres which may otherwise cause dry corrosion for higher nickel content materials. |
Electric heaters, electric furnaces (with atmospheres). |
Iron Chrome Aluminum |
|
|
OCr25Al5 |
Can be used in operating conditions up to 1350°C, although can become embrittled. |
Heating elements of high temperature furnaces and radiant heaters. |
OCr20Al5 |
A ferromagnetic alloy which can be used at temperatures up to 1300°C. Should be operated in dry surroundings to avoid corrosion. Can become embrittled at high temperatures. |
Heating elements of high temperature furnaces and radiant heaters. |