
Large Diameter Carbon Steel SSAW ERW Black Hollow Section Pipe. Wide Customization Range: Outer diameter 20-610mm, wall thickness 0.6-20mm, and length 1-12m available per buyer request. Multiple Material Grades: Available in Q195, Q215, Q235, Q345, S235JR, GR.B-D, and STK500 grades. Comprehensive Certifications: Certified by CE, BV, SGS, and ISO9001 standards. Competitive Factory Pricing: Price is 20 USD per ton lower than other suppliers due to direct factory sales. Fast Stock Delivery: Items in stock can be shipped within 2 days; standard delivery within 10-45 days. OEM and R&D Support: OEM is welcomed with a strong R&D team capable of building molds and fixtures. Flexible End Processing: Ends available as plain, beveled, or threaded with couplings or sockets. Global Shipping Capability: Exported to over 30 countries with optimized packing for 20ft and 40ft containers.