Seamless steel pipe for structure (GBT8162-1999). Mainly used for general structure and mechanical structure, it is a kind of variety that is divided into different uses. Its representative materials (brands): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

Chemical composition

Features

Structural seamless steel pipes are made of different materials according to different structures and use environments, which are resistant to compression, high temperature and corrosion. Carbon steel is used under normal conditions, which is cost-effective. The main heat treatment methods of structural seamless steel pipes include normalizing, tempering, and quenching. The main purpose of heat treatment is to remove the magazine, make the internal organization of the tube more tight, and enhance the mechanical properties of the tube.

FAQ

Question: What are the uses of seamless steel pipes for structural use?

Answer: Seamless steel pipes for structural use are used to manufacture seamless steel pipes for pipes, vessels, equipment, pipe fittings and mechanical structures.

Construction: hall structure, sea trestle bridge, airport structure, dock, security door frame, reinforced steel lining doors and windows, indoor partition wall, cable bridge structure and highway security guards, railings, decoration, residences, decorative pipes

Auto parts: automobile manufacturing, vehicle and parts manufacturing

Agriculture: manufacturing of agricultural equipment and accessories

Industry: mechanical processing, offshore oilfields, mining equipment, electromechanical hardware, engineering, mining, material processing, construction, etc.

Transportation: pedestrian railings, guardrails, square structure, guidance signs, road equipment, fences

Logistics and warehousing: supermarket shelves, furniture, school appliances

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