Vorax cladded wear-resistant pipes are made by hardfacing resistant layers to the pipe’s internal wall and can be classified into two main categories:
• pipes with cladded layer resistant to abrasion and erosion
• pipes with cladded layer resistant to corrosion and high temperatures.
The standard length of Vorax pipes is 3 m, and the smallest inner pipe diameter we can weld protective overlay is 90 mm. Vorax cladded wear-resistant pipes are not limited by the upper diameter and can be used for the construction of pipe arches, elbows, tees, reducers, etc. We can also adjust the procedure and material for pipe cladding according to client’s needs.
Pipes resistant to abrasion and erosion
Thanks to the robotized overlaying process, advanced metallurgy of the hardfaced layer and controlled pipe cooling procedure during cladding, the protective layer in the pipe ensures durability several times longer than that of pipes made of standard materials. The hardness of the welded layer can be up to 67 HRC with carbides of hardness up to 3000 HV.
Tests have shown that, depending on the angle under which the abrasive material (gravel, sand, cement, dust, ash, etc.) is transported through the pipes, the durability of Vorax cladded wear-resistant pipes is up to 20 times greater than the durability of unprotected steel pipes, 13 times greater than the durability of manganese steel pipes and around 12 times greater than the durability of thermally-processed pipes of hardness of about 450 HB. In other words, the pipelines you had to rotate or replace every 60 days can, with our technology, last up to two years!
Hardfacing is done in one or two layers. Pipes with a double layer of hardfaced material are for the same thickness 2-4 times more durable than single layer cladded pipes.
Pipes resistant to corrosion
Pipelines in chemical, oil and gas industries usually contain aggressive and corrosive media such as acids, chlorides, hydrogen sulphide, sand, etc. High pressures and temperatures additionally shorten the lifespan of those pipelines and aggravate maintenance shutdowns.
Pipes resistant to such working conditions are usually made by cladding carbon steel pipes with nickel and chromium alloys, which produces pipes of high resistance to corrosion and lower purchase price.
The procedure of robotized overlaying of resistant nickel-chromium alloy is a long-term and economical solution for the mentioned problems. Vorax pipes resistant to corrosion are known for its high quality of cladded layer, minimal mixing with the base material and lowest possible porosity.
The cladding is done in one or two layers. Lifetime of pipes with two cladded layers is significantly higher than a lifetime of pipes resistant to corrosion cladded with a single layer of protective material.