Q235 Square Steel Pipes

In the manufacturing process of Q235 square steel pipes, it's crucial to monitor the following key process parameters to ensure performance:

Chemical Composition: Ensure the correct balance of carbon, manganese, and other elements for strength and weldability.

Thermal Treatment: Proper annealing or normalization to achieve desired mechanical properties.

Rolling Precision: Accurate rolling to maintain uniform wall thickness and squareness.

Surface Finish: Minimize surface defects like scale or scratches that could affect corrosion resistance.

Dimension Tolerance: Adhere to strict dimensional tolerances for size consistency.

Internal Quality: Avoid internal defects like inclusions or porosity through quality control checks.

Welding: If applicable, ensure welds are strong and free from cracks or voids.

Coating or Treatment: Apply protective coatings or treatments if required for specific applications.

Testing: Conduct mechanical tests and inspections to verify compliance with industry standards.

These pipes are characterized by their square cross-section and are available in various sizes to meet diverse industrial needs.

FAQ

1, what is your time of making a sample

Usually we will take 1~3 days to make the sample

2,What is your delivery time?

For stocks, we can send the goods to loading port within 7 days after receiving your deposit

For production period, it usually needs about 15days- 30 days after receiving the deposit.

3,What is your payment terms?

Usually 30% deposit by TT in advance and balance against copy of BL or LC at sight

Best price: We have our own factory, all products in accordance with ex-factory price, cheap, and the quality of high quality.

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