Grain Oriented Electrical Steel
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Here at Stephens Gaskets we offer you the best in grain oriented electrical steels. Furthermore, we provide a range of grades guaranteed to fit your needs perfectly. But, what are these steels and how are they produced?
Grain Oriented Electrical Steel (GOES) is designed to aid electrical transformers with efficiency and to help make them more more economical. To explain, this works by the iron-silicon alloys providing low core loss and high permeability. A key benefit is that they’re available in several different grades. What’s more, the steels have superior magnetic properties in the rolling direction of the grain. This means they are ideal in transformer cores, such as those within large generators. In comparison to grain made out of other parts – such as regular stainless steel, GOES is much more efficient.
How it’s Made
For a high stacking factor and effective magnetic properties, the GOES process is always under extremely controlled conditions. As a result, this complex process of production relies on a high-silicon hot-rolled coil feedstock, before progressing onto a secondary re-crystallisation process, where some of the grains will grow to over 30mm. In addition, the magnetic properties of each coil are measured in the final vigorous testing process, where the coils are made into the correct grade needed for the customer.
The surface of grain oriented silicon steel is a glass-like film, and this provides the electrical insulation needed between wound core laps or transformer laminations. With this in mind, it differs to stainless steel in that grain oriented steel is actually sold on the basis of its magnetic properties, as well as its electrical properties. For this reason, these types of steel are also popular for manufacture reactors, as well as transformers of all sizes, including distribution transformers.
Based in Oldbury, Birmingham Stephens Gaskets has provides quality pressed parts and has done so since 1947. The parts include gaskets, exhaust gaskets, ring shims, shim washers, shims in brass, steel, stainless steel, plastic, copper and more. With our knowledgeable experts, we offer a high level of technical support, a fast turn around time. Additionally, we offer worldwide delivery to a wide range of customers, from car and bike clubs to diesel engine manufacturers.