
ASTM BS Standard Precision Tubes for Mechanical Manufacturing. Wide Material Selection: Supports A53, A106, Q235, 10#, 20#, ST35, ST42, ST52 and more carbon steel grades. Extensive Size Range: Outer diameter 16-1020mm, wall thickness 1-200mm, length 1-12M, customizable. Comprehensive Certifications: Certified by ISO, SGS, BV, CE, ASTM, BS, GOST, JIS, and other international standards. Robust Anti-Rust Packaging: Multi-layer protection with anti-rust oil, vapor film, and waterproof fabric for 6+ months. Flexible Customization: Supports full customization from samples, designs, and minor adjustments to specific needs. Multiple Heat Treatments: Available in annealed, quenched, and tempered states to meet diverse mechanical requirements. Surface Treatment Options: Offers black painting, galvanized, antirust oil, varnish, and 3PE coating options.