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Custom Black Grey Steel Pipe 600x600mm Seamless

Rectangular Steel Pipe
December 27, 2025
Category Connection: Rectangular Steel Pipe
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Tags:
#ASTM rectangular stainless steel pipe #20mm Precision Steel Pipe #1.5mm Precision Steel Pipe
Brief: Looking for a straightforward way to source large-format structural steel pipes? This video provides a detailed walkthrough of our seamless black grey rectangular steel pipes, showcasing the customization process from size specification to final mill finish options.
Related Product Features:
  • Available in a wide range of customizable sizes from 20x20mm up to 600x600mm.
  • Constructed from high-strength Q345E steel material for structural applications.
  • Features a seamless design ensuring superior strength and durability.
  • Offers versatile surface finishes including mill finish, bright, mirror, satin brushed, or sand blast.
  • Manufactured with cold rolled technique for precise dimensional control.
  • Comes with a non-oiled surface and is available with galvanized treatment.
  • Certified to ISO9001 and ASTM standards for guaranteed quality.
  • Supports various processing services like welding, punching, cutting, and bending.
FAQs:
  • What is the available size range for these rectangular steel pipes?
    Our rectangular steel pipes are highly customizable and are available in a wide outer diameter range from 20x20mm up to 600x600mm to meet various project requirements.
  • What material grade is used and what are its properties?
    The pipes are made from Q345E grade steel, which offers a high yield strength of 360-380 MPa, making it suitable for demanding structural applications.
  • What surface treatment and finish options are available?
    We offer several surface finishes including a standard mill finish, as well as bright or mirror polish, satin brushed, and sand blast. The pipes can also be supplied with a galvanized surface treatment for enhanced corrosion resistance.
  • What is the typical delivery time for a custom order?
    The standard delivery time for custom orders is between 22 to 30 days, ensuring we meet your project timelines while maintaining our high-quality standards.
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