Wuxi Yushen Hydralic Machinery Co.,Ltd. : Your Professional Seamless Steel Tube Manufacturer in China
Wuxi Yushen Hydraulic Equipment Co., Ltd. was established in 1990. The company integrates product research and development, production, manufacturing, processing, operation, sales, and technical services.
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Chrome Plated Steel Pipe Hydraulic Cylinder TubeChrome Plated Steel Pipe Hydraulic Cylinder Tube is a high-strength steel pipe used to transmit pressure and motion in hydraulic systems. It is available in bulk orders and can be customized.
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ST52 Honing Tube for Hydraulic CylinderST52 Honing Tube for Hydraulic Cylinder is a high-strength steel tube used for precision machining of the inner cylinder of hydraulic cylinders. It can be ordered in bulk or customized.
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H9 Hydraulic Cylinder Steel Honed TubeH9 Hydraulic Cylinder Steel Honed Tube is a precision steel tube suitable for hydraulic systems and hydraulic cylinders in engineering machinery, ensuring stable piston movement.
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ASTM A106 DIN2391 ST52 Honed Tube Honing PipeASTM A106 DIN2391 ST52 Honed Tube Honing Pipe is a high-precision steel pipe suitable for hydraulic systems, mechanical bearings, and industrial equipment. It can be ordered in bulk or customized.
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Honed Tube Stainless for Hydraulic CylinderHoned Tube Stainless for Hydraulic Cylinder is a high-precision seamless tube for hydraulic cylinder systems, suitable for industrial machinery and engineering equipment. It can be ordered in bulk or
Advanced Production Equipment
The company possesses comprehensive processing equipment covering the entire process, including box-type electric furnaces and centerless grinding production lines. This equipment can complete key processes such as heat treatment, precision cutting, surface shaping, and polishing.
Wide Range of Applications
Our products are widely used in cranes, excavators, forklifts, sanitation vehicles, lifting platforms, and tower cranes.
Guaranteed Quality
Our products have obtained international certifications such as FDA, CE, and 3C.
Customizable
Our products accept OEM/ODM customization.
Introduction
A seamless steel tube is a hollow steel product made without any welded seam. It’s formed by piercing a solid steel billet and then rolling or drawing it into a tube, which gives it uniform strength and structure all the way around.
As an experienced seamless steel tube manufacturer in China, Wuxi Yushen Hydraulic Machinery Co., Ltd. focuses on the production and supply of precision seamless steel tubes for industrial, hydraulic and mechanical applications.
Specification
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Material |
API5L,Gr.A&B, X42, X46, X52, X56, X60, X65, X70, X80, ASTM A53Gr.A&B,ASTM A106 Gr.A&B, ASTM A135, ASTM A252, ASTM A500, DIN1626, ISO559, ISO3183.1/2, KS4602, GB/T911.1/2,SY/T5037, SY/T5040 STP410,STP42. |
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Certificates |
API5L ISO 9001:2008 TUV SGS BV etc |
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Outside Diameter |
1/2'--24' |
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21.3mm-609.6mm |
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Thickness |
SCH5S, SCH10S, SCH20S,SCH20, SCH30,STD, SCH40, SCH60, SCH80, SCH100, SCH140, SCH160,XS, |
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1.65mm-59.54mm |
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Length |
5.8m 6m Fixed, 12m Fixed, 2-12m Random. |
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Technic |
1/2'--6': Hot piercing processing technic |
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6'--24' : Hot extrusion processing technic |
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Surface Treatment |
Black Painted, Galvanized, Natural, Anticorrosive 3PE coated,polyurethane foam Insulation . |
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Packing |
Bundles or In bulk. bundled pipes with two slings at the both End for easy loading and discharging, |
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End |
Bevel end(>2"), Plain (≤2"),with plastic cap, with screwed and |
High Mechanical Strength
Stable material properties support high stress, vibration, and dynamic loads.
Consistent Dimensions
Uniform wall thickness and outer diameter enable precise machining and assembly.
Excellent Pressure Performance
Withstands higher internal pressure, ideal for hydraulic systems and high-pressure equipment.
Good Machinability
Smooth surface and stable structure allow easy cutting, threading, and secondary processing.


We produce seamless steel tubes using advanced hot-rolling, cold-drawing, and precision finishing processes. Our facility handles a wide range of diameters and wall thicknesses with tight tolerances.
Diameter & Wall Thickness Range
Diameter: 10mm – 660mm
Wall thickness: 1mm – 80mm
Length: up to 12 meters (customizable)
Material Grades
Carbon steel
Alloy steel
Stainless steel
Customization
We can produce tubes in precise lengths and diameters to match your project requirements.
Seamless tubes can be made from carbon steel, alloy steel, or stainless steel.
Tubes can undergo secondary operations to meet application needs:
Threading: Internal or external threads for fittings
Honing: Precise inner diameter finishing for hydraulic or pneumatic systems
Polishing: Smooth surfaces for high-precision mechanical or decorative uses
Cutting: Exact length cutting with clean edges
We offer customized heat treatments to enhance mechanical properties:
Annealing: Improve machinability and relieve stress
Quenching and Tempering: Increase strength and hardness
Normalizing: Uniform microstructure for high-performance applications
Various surface options are available to extend tube life or improve performance:
Pickling and Passivation: Corrosion resistance for stainless steel
Oil Coating: Protect during storage and transport
Black or Galvanized Finish: For outdoor or high-wear applications
We can deliver tubes with tight tolerances and perform additional inspections:
Dimensional inspection for precision assembly
Hydrostatic or pressure testing for high-pressure applications
Non-destructive testing (NDT) for critical industries
FAQ
As one of the leading seamless steel tube manufacturers and suppliers in China, we warmly welcome you to buy high quality seamless steel tube in stock here from our factory. If you have any enquiry about custom service and OEM service, please feel free to email us.
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