Seamless Steel Pipe with Beveled End, Plastic Cap and Black Paint Seamless Steel Pipe Outside diameter: 13.7-610mm (1/ 4-24 inch) Seamless Steel Pipe Thickness: SCH 20 to SCH 140 (1.73-36.5mm) Seamless Steel Pipe Standard: API 5L, API 5CT, ASTM A106 Seamless Steel Pipe Steel Grade: A, B, X42, X46, X52, , X65,P11, 16Mn, ST37, ST52 Seamless Steel Pipe Packing: Labeled and bundled together with steel strip Seamless Steel Pipe Application: Low, medium and high pressure boiler, transportation for gas, water, oil and natural gas, tubes for heat exchanger and chemical fertilizer equipments, for hydraulic pillar service etc.