Bimetal pipe, Dnipropetrovsk region.

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Bimetallic pipes have excellent technical characteristics when used in structures operating under high load and wear, in corrosive environments, and they are also more economical than their stainless steel counterparts.
That is why such pipes are becoming more and more popular abroad - in the production of heat exchangers, condensers, pipeline parts, apparatus for the chemical, oil and gas industry, spare parts for drilling equipment, heating equipment, food and refrigeration industry and in other industries.(//tractor-service.com)
Bimetallic pipes consist of two different materials: usually the inner layer is made of corrosion-resistant metals (copper, aluminum, brass, titanium, bronze, zirconium, etc.), and the outer layer is made of stronger ones (stainless steel, carbon steel, titanium). The inner layer provides resistance against general, pitting and pitting corrosion.

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