Tianjin Yuantai Derun Square Tube
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.
