The difference between square cold-formed hollow section steel and cold-drawn square steel pipe

Square cold-formed hollow section steel is a section steel with square cross-section shape and size made of hot-rolled steel plate after cold-bending and then high-frequency welding. It is also called welded square steel pipe. The section steel has a stable production process and high precision, and can produce any cross-section pipe shape. The corner size and edge straightness of the square cold-formed hollow section steel reach or even exceed the level of cold-drawn square steel pipes.

Cold-drawn square steel pipe is formed by cold-drawn seamless steel pipe, also known as cold-drawn square steel pipe, cold-drawn square steel pipe has no weld seam, cold-drawn square steel pipe has high pressure resistance, cold-drawn square steel pipe has good comprehensive mechanical properties, cold and hot processing performance It has good corrosion resistance and good low temperature toughness.

The detailed performance parameters of square cold-formed hollow section steel products are as follows:

[Specifications of square cold-formed hollow section steel]: 20*20mm-800*800mm

[Square cold-formed hollow steel material]: Q235B, Q345b, ASM500, S355J2H, ss355, ss400

[Length of square cold-formed hollow section steel]: 4-16 meters

[Use of square cold-formed hollow section steel]:

Square cold-formed hollow steel is widely used in urban buildings, structures, roof trusses, purlins, trusses, steel frames, wall frames, roof panels, wall panels, doors and windows, and even containers, pipes, cofferdams, steel sheet piles, breakwaters, etc.

The detailed performance parameters of cold-drawn square steel pipe products are as follows:

[Specification of cold drawn square steel pipe]: 40*40mm-1200*1200mm

[Material of cold-drawn square steel pipe]: Q345b, 20#, 16Mn, Q345C\Q345D\Q345E and other material grades

[Length and dimension of cold-drawn square steel pipe]: fixed length, variable length

[Cold-drawn square steel pipe product use]:

Cold-drawn square steel pipes are widely used in machinery manufacturing, shipbuilding, equipment manufacturing, subway engineering, container manufacturing, container pipes, special vehicles, airports and ports, bridge construction, explosion-proof equipment, special vehicles, drilling equipment, tower cranes wait.