Call Us: +8615954941919 interested in Contact Us? Mail us now
English
Hydraulic steel pipe introduction: cold-drawn or cold-rolled precision seamless steel pipe with high dimensional accuracy and good surface finish for hydraulic equipment.
Precision seamless steel pipe is selected to manufacture mechanical structures or hydraulic equipment, etc. Precision steel pipe is a kind of seamless steel pipe with high precision after cold-drawing or cold-rolling treatment. Since precision steel tubes have no oxide layer on the inner and outer walls, withstand high pressure without leakage, high precision, high finish, no deformation in cold bending, flaring, flattening without cracks and other points, they are mainly used to produce pneumatic or hydraulic products.
Honed tube: from cold rolled precision seamless steel tube is made of seamless steel tube finished tube or seamless tube barren tube, after pickling, phosphating, saponification treatment, and then rolled by cold rolling mill to make hydraulic steel tube.
Hydraulic steel pipe precision is extremely high generally can be controlled within the range of 0. 02-0. 05MM, its standard is: GB3639-83, the allowable deviation of the internal warp is 0.03mm, internal surface roughness: Ra 0.2 ~ 0.8μm, hydraulic steel pipe straightness: 0.3 ~ 1.5mm/m, dedicated to do the barrel diameter of oil steel.
Material/Grade | Din2391 ST52 Honed Tube |
Standard | API, ASTM A530, ASTM A519, ASTM A53, GB 3087, GB/T8163, GB 5130, GB/T 8162, |
Outer diameter | 20mm-500mm |
Wall thickness | 3mm-80mm |
Length | 1-12m, Fixed length, random length or as required |
Test | Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size, Nondestructive Testing |
Advantages | Competitive price, Quality assurance, Short delivery time, Superior Service, Minimum quantity is small |





