Carbon Steel Seamless Pipe , SAW,ERW, SEAM seamless steel pipe Application: Be widely used for heat exchange, structure, machinery, liquid transportation. Material quality: ASTM A106 / A53, DIN, EN, GB/T8162 / 8163, etc Outside Diameter: 13.7mm-711.2mm 1/4 "-28 " Wall Thickness: 2mm-50mm Length: Random 6m-12m or fixed 6m Bevel pipe ends and black anti-rusting paint is available if you need. Packing: In bundles