There are many different applications for carbon blocks, but the most common in the metal refining industry is in the development of blast furnace hearths. The blocks have to be able to stand up to sustained, continuous and extreme heat conditions and they also have to have a significant life cycle.
There are different grades of blocks. The durability and the application most suited to the blocks will be determined by the amounts of amorphous carbon, hot pressed carbon, semi-graphite, full graphite or semi-graphitized carbon in the specific mixture.
Along with the different combinations of materials that may be found in these carbon blocks, there will also be different manufacturing methods. Unfortunately, not all of the blocks on the market are the same quality. Issues such as the difference between hot pressed semi-graphite material and full carbon blocks will have a major difference on performance.
The Importance of a Supplier
Finding a consistent, reliable supplier of carbon blocks is essential. The worst-case scenario for any blast furnace operator is to continually purchase blocks from various sources, which will pose the biggest risk for inferior quality.
Choosing a supplier that offers the quantities, grades and the sizes of carbon refractories required will be a critical decision. Look for companies that work with quality producers to bring in the lowest priced, highest quality blocks.
Ability to Meet Your Needs
In addition to consistent quality, ensure the supplier is able to meet your specific needs. This may include the need to find a source for reasonably priced specialized blocks that may be smaller or larger than the standard order and sizes.
Additionally, look for a supplier that can also fill your orders for other carbon and graphite products. This allows you to work with one supplier for all similar materials, streamlining your ordering process and making the process more convenient.