seamless steel tube for hydraulic cylinderThe mother hot rolled tube are supplied by chinese famous steel works such as shanghai Baosteel,Tianjin TPCO etc.We have two sets of cold drawing production line to manufacture cold drawn tube.Usually, we can manufacture about 2000 metric tons of cold drawn tube monthly.

TECHNICAL DETAILSSteel Grade Chemical Composition% (max) Mechanical Properties (min)C Si Mn P S Yield Tensile Elongation Impact TestE 355 0.22 0.55 1.60 0.04 0.04 520 580 14% 27J(ST 52) N/mm2 N/mm2 (-20°C)Delivery condition BK+S (Stress Relieved). Impact test results of 27J based on standard 10 x 10mm specimenFor sizes over 230mm OD we aim to supply impact results of 27J min. Actual results available on request.For sizes over 230mm OD with wall thickness greater than 16mm the yield will be 490 N/mm2 min.TOLERANCESOutside Diameter: BSEN10305-1 / DIN 2391Bore: Generally H8 with surface finish max 0.4 microns RaInside Straightness: 1mm / 1000mm or betterEccentricity: OD ≤ 110mm max 5% of average wallOD > 110mm max 7.5% of average wallOD > 230mm max 10% of average wallSIZE RANGEMetric: 20 - 250 mm Bore(Other steel grade and delivery conditions are optional)Packing: steel strip bundle, knitting strip bundle or steel box.Protecting: Antirust oiled inside and outside surface, plastic caps in both ends.APPLICATION: HYDRAULIC CYLINDER

seamless steel tube