29.01.2019
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High-strength fastener plant "BERVEL" LLC was the first in Russia to start mass production of high-strength fasteners from weathering steel (bolts, nuts, washers), which do not require additional anti-corrosion protective coating. In the manufacture of fasteners used a unique technology that has no analogues in the Russian Federation. Delivery of fasteners for the installation of maintenance-free metal structures is carried out as part of the construction and reconstruction of bridges. Fasteners (bolts and nuts) has an additional marking "C" (COR-TENTM)*.   

* Since 1959 when COR-TEN began to be marketed, this material has served as weathering steel (atmospheric corrosion-resistant steel).

COR-TEN has successfully overcome rust, steel's most weakest, by capitalizing on its unique "rust cures rust" function.

When exposed to the atmosphere without painting, COR-TEN begins to rust in the same way as ordinary steel. But soon the alloying elements in COR-TEN cause a protective surface layer of fine-textured rust to form, thereby suppressing corrosion rate.

Capitalizing on this excellent property, COR-TEN can be used without painting, thereby nullifying the commonly held belief that "steel must be used with paint."

But , if paint is applied to COR-TEN, the service life of the paint is prolonged compared to coatings applied to ordinary steel. Accordingly repainting costs are reduced.

COR-TEN has been used in every field where steel is applied, such as bridges, railway vehicle and buildings. Recently, unpainted applications of COR-TEN are attracting attention as being especially suited for resource savings and environmental concerns.

Another growing application of unpainted COR-TEN is in conjunction with rust stabilization treatments on bridges, building exteriors and other structures.

In this way, COR-TEN helps to reduce lifecycle costs (LCC) and environmental burdens in a wide range of applications.

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