Reasons For The Wear Resistance Of Galvanized Steel Pipes

Galvanized steel pipes rely on their own high toughness, good bending and welding properties, but are mainly made of important parts that require extremely high wear resistance and crack resistance. The thickness of the wear-resistant layer of wear-resistant alloy pipes varies, generally controlled between 3-120mm, so their hardness grades are also different.

Compared with ordinary alloy wear-resistant pipes or other materials, alloy wear-resistant steel pipes have much stronger wear resistance, and are much higher than the wear resistance obtained by spray welding and thermal spraying. The wear-resistant layer of the wear-resistant pipe is metallurgically bonded to the substrate, and the bonding strength is high.

Even if it is impacted, it can absorb energy during the impact process, and the wear-resistant layer will not fall off. If it can be applied to working conditions with strong vibration and impact, this is unattainable for cast wear-resistant materials and ceramic materials.

Although the surface strength of ordinary galvanized steel pipes can be improved after heat treatment or surface carburizing, nitriding and other treatments, if the hardness of this wear-resistant alloy pipe is too high, it may peel off quickly, which is not conducive to wear resistance, and some softer materials may also be more wear-resistant.

Alloy wear-resistant pipes are wear-resistant mainly because they not only have hard particles but also a soft matrix. Generally, during the wear process, some detached materials will be integrated into the soft matrix and will not cause much damage to the surface. If the hardness of the pipe matrix structure is also relatively high, the falling abrasives or other materials will grind against each other during the mutual movement, which will destroy the matrix structure faster. For galvanized steel pipes, hardness is only one of the parameters, and it is also related to its chemical composition, but as a key parameter to measure pipeline performance, it should be paid more attention.