Seamless square and rectangular tube has good strength, toughness, plasticity, welding and other technological properties, and good ductility. Its alloy layer is firmly attached to the steel base. Therefore, seamless square and rectangular tube can be formed by cold punching, rolling, wire drawing and bending without damaging the coating. It is suitable for general processing such as drilling, cutting, welding, cold bending and other processes.
Main properties related to seamless rectangular tube:
Rust prevention and corrosion prevention – zinc dipping layer, zinc rich phosphating layer and electrostatic coating all have excellent rust prevention effect. Zinc steel guardrail can generally ensure that it will not rust for 30-50 years in harsh environments.