Tianjin Yuantai Derun Square Tube
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- Issue Time
- Aug 27,2025
Summary
Tianjin Yuantai Derun Group has specialized in square tube production for over 20 years and operates two modern production bases in Tianjin and Tangshan, with an annual production capacity exceeding one million tons, ranking among the top in the world.
Product Specifications and Materials
Specification Range:
Square Tube: 20mm×20mm to 1000mm×1000mm, wall thickness 1.2mm to 40mm.
Rectangular Tube: 20mm×30mm to 400mm×600mm, wall thickness 1.2mm to 40mm.
Round Tube: OD 20mm to 273mm, wall thickness 1.5mm to 8.0mm.
Spiral Welded Tube: OD 219mm to 1420mm.
Material Classification:
Plain Carbon Steel: Q195, Q215, Q235, SS400, 20# Steel, 45# Steel, etc.
Low Alloy Steel: Q345, 16Mn, Q390, ST52-3, etc.
Weathering steel: Q235NH, Q345NH, 09CuPCrNi-A, etc.
High-strength steel: Q355B, Q355C, Q355D, Q460C, etc.
Surface treatment:
Hot-dip galvanized square tube (zinc layer thickness ≥ 80μm, corrosion resistance life is three times that of conventional carbon steel tube).
Electrogalvanized square tube, oiled square tube, pickled square tube, etc.
Technological Breakthroughs and Product Advantages
Thick-Wall Square Tube Technology:
By 2025, we aim to achieve a breakthrough in 50mm×50mm square tube wall thickness of 7.75mm, far exceeding the industry standard of 5.75mm, meeting the demands of high-end applications such as curtain wall aluminum profile inserts.
Zinc-Aluminum-Magnesium Steel Coil Technology:
Utilizing a ternary alloy coating, it offers superior corrosion resistance to traditional hot-dip galvanized pipes and is suitable for harsh environments such as deserts, tidal flats, and saline-alkali lands.
Large-Section Square and Rectangular Tube Production:
We have a 600mm×600mm large-section square and rectangular tube production line, specializing in large-diameter, thick-walled square and rectangular tubes. We maintain a large inventory and a comprehensive range of specifications.