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Product Introduction
Our Carbon Steel Square Pipe is a top-tier non-alloy structural material for diverse industrial and construction uses. With an annual output of 400,000 tons, we ensure stable, large-scale supply for bulk orders. This square steel pipe has a precise section shape with standard tolerance and customizable specs: side size from 15mm to 1000mm, wall thickness from 0.8mm to 30mm.
We provide one-stop processing services including cutting, welding, bending, and painting. Perfect for building construction and mechanical manufacture, our square steel pipe blends durability and practicality for structural framing, mechanical component fabrication, and industrial equipment production.
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Main Products & Capability
Our enterprise integrates steel trading, galvanizing processing, and logistics distribution. Boasting over 16,000 square meters of large-scale indoor warehouses, we maintain stable strategic relationships with numerous landmark domestic steel mills. Our regular inventory stands at 20,000 tons to ensure immediate response to market needs.
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Frequently Asked Questions
What are the main applications for these square steel pipes?
They are widely used in curtain walls, power transmission towers, communication grids, building construction, and mechanical equipment manufacturing due to their structural reliability.
How is the quality of hot-dip galvanized pipes verified?
Quality is judged by checking the appearance for a uniform coating. The entire surface is inspected for defects such as missing plating or bubbles to ensure reliable performance.
Why do galvanized pipes sometimes rust over time?
Rusting can occur if the zinc coating is exposed to strong acids, alkalis, or hydrogen sulfide. In humid environments, zinc forms a protective film, but if the coating is damaged or corroded away, the underlying steel will oxidize.
How can welding cracks be avoided in cold environments?
Use low-hydrogen welding materials, preheat the material to 80-200℃, adopt symmetric welding, and allow for slow cooling post-welding for at least 2 hours.
What surface treatments can be applied to the steel pipes?
We offer shot/sand blasting, pickling, anti-rust oil treatment, and painting to boost corrosion resistance and longevity.
What is the typical delivery timeframe for orders?
Our standard delivery time ranges from 5 to 25 days, depending on the specifications and order volume.
Flowtera Pipe
