When it comes to high temperature applications, the choice of steel depends on the specific temperature range and the environment it will be used in.
What is the best steel for high temperature applications? 5 key points to consider
1. Temperatures between 550°C and 850°C
For temperatures in this range, ferritic steel grades 4713 and 4724 are recommended. These grades offer good resistance to high temperatures within this range.
2. Temperatures up to 1150°C
For higher temperatures up to 1150°C, higher alloyed grades such as 4736, 4742, and 4762 are suitable. These grades exhibit excellent resistance against reducing sulfur attacks and molten metals.
3. Temperatures above 1000°C
For even higher temperatures above 1000°C, it is recommended to use metals with molybdenum as the dominating element. Tungsten can also be used for temperatures up to 2500°C.
4. Hybrid hot zones
In some cases, hybrid hot zones are built using a combination of different material families. This includes the use of metals, graphite, and ceramics. Graphite and ceramics provide thermal insulation and can be introduced as fibers, which offer excellent insulation properties. Hybrid hot zones provide higher insulation and lower construction costs compared to using only metals.
5. Specialized furnaces
It is important to note that the melting point of steel is approximately 1300°C. To achieve such high temperatures, specialized furnaces such as induction furnaces are used. Induction furnaces are clean and highly controllable, making them ideal for melting steel and other metals. They are available in various sizes, allowing businesses to choose a furnace that suits their needs and upgrade as their business expands.
Continue exploring, consult our experts
Looking for laboratory equipment for high temperature applications? Look no further! KINTEK has a wide range of steel grades, including ferritic steel grades 4713 and 4724 for temperatures between 550°C and 850°C, and higher alloyed grades 4736, 4742, and 4762 for temperatures up to 1150°C. We also offer molybdenum and tungsten for temperatures up to 2,500 °C. Our hybrid hot zones, combining metals, graphite, and ceramics, provide thermal insulation and cost-effectiveness. Choose KINTEK for all your high temperature laboratory equipment needs. Contact us today!
