Cold drawn steel tube for hydraulic cylinder
We have 3 sets of Large-scale cold drawing production line to
manufacture cold drawn tube.
Usually, we can manufacture about 2000 metric tons of cold drawn
tube per month.
Steel Grade Chemical Composition% (max) Mechanical Properties (min)
C Si Mn P S Yield Tensile Elongation Impact Test
E 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 specimen
For 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.
Our Packing terms
Outside Diameter: BSEN10305-1 / DIN 2391
Bore: Generally H8 with surface finish max 0.4 microns Ra
Inside Straightness: 1mm / 1000mm or better
OD ≤ 110mm max 5% of average wall
OD > 110mm max 7.5% of average wall
OD > 230mm max 10% of average wall
Metric: 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.
For the hydraulic cylinder.