Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"E235 Cold Drawn Seamless Tube for Hydraulic and Pneumatic Systems with Precision","imgUrl":"https:\/\/img.chinax.com\/nimg\/be\/98\/9053fad54fe3fa93502e87ed934e-200x200-1\/e235_cold_drawn_seamless_tube_for_hydraulic_and_pneumatic_systems_with_precision.jpg","attrs":[]}
{"title":"Cold Drawn Alloy Steel Seamless Pipe for Pressure Vessels with High Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/45\/a1\/dece600d0876a01ef088332ed6ed-200x200-1\/cold_drawn_alloy_steel_seamless_pipe_for_pressure_vessels_with_high_temperature_resistance.jpg","attrs":{"Brand Name":"Global","Model Number":"12inch Sch80","Certification":"API, CE, ISO","Place of Origin":"China"}}
{"title":"Heavy Wall Seamless Welded Carbon Steel Pipe A\/SA106B\/C A\/SA53B Standard Long","imgUrl":"https:\/\/img.chinax.com\/nimg\/ab\/c9\/9462bf309c0a98a6b05415e59bd7-200x200-1\/heavy_wall_seamless_welded_carbon_steel_pipe_a_2fsa106b_2fc_a_2fsa53b_standard_long_lifespan.jpg","attrs":{"Brand Name":"BEST","Model Number":"1\/2''-48''","Certification":"API, CE, PED, ISO","Place of Origin":"China\/Japan"}}
{"title":"EN10028 E355 Material Alloy Steel Seamless Pipes Heavy Wall Tubes Round Shape","imgUrl":"https:\/\/img.chinax.com\/nimg\/67\/8f\/e52b13079181d6f4f5346cfd83b5-200x200-1\/en10028_e355_material_alloy_steel_seamless_pipes_heavy_wall_tubes_round_shape.jpg","attrs":{"Brand Name":"Thyssenkrupp Material","Model Number":"40x40inch","Certification":"APZ3.1 Certificates","Place of Origin":"Italy"}}
E235 Cold Drawn Seamless Tubes for Hydraulic and Pneumatic Power Systems E235+N
E235 cold drawn seamless tubes are precision steel tubes widely used in engineering, automotive, hydraulics, and general machinery where strength, dimensional accuracy, and surface quality are critical.
Understanding E235 Cold Drawn Seamless Tubes
E235: Non-alloy structural steel grade defined in EN 10305 with minimum yield strength of 235 MPa. Features good machinability and weldability.
Cold Drawn: Manufacturing process that improves dimensional accuracy, enhances surface finish, increases strength and hardness, and provides better straightness.
Seamless: Tube construction without welded seams, ensuring uniform mechanical properties and better performance under pressure and dynamic loads.
Key Properties and Advantages
Strength-to-Cost Ratio
Yield strength around 235 MPa with cost-effectiveness compared to alloy steels.
Dimensional Accuracy
Tight tolerances on outer diameter, inner diameter, and wall thickness with excellent straightness.
Surface Quality
Smooth internal and external surfaces ideal for sealing applications with hydraulic fittings.
Machinability & Weldability
Easy to cut, drill, turn, mill, thread, and weld using standard procedures.
Primary Applications
Hydraulic and Pneumatic Systems:
Hydraulic cylinder barrels with honed or skived & roller-burnished surfaces
High-pressure fluid and compressed air lines
Automotive and Transportation:
Steering and suspension components
Chassis and structural parts
Mechanical Engineering:
Shafts, sleeves, and bushings
Machine frames and structural components
Guide tubes and columns
Furniture and Architecture:
Office furniture frames and supports
Fitness equipment structures
Railings and architectural supports
Comparative Advantages
Alternative
E235 Advantage
Welded Tubes
No weld seam, better reliability, superior concentricity and surface quality
Hot-finished Seamless
Tighter tolerances, better surface finish, more suitable for precision applications
Higher Alloy Steels
More cost-effective, easier to work with, sufficient for standard applications
Practical Considerations
Tolerances: Specify according to EN 10305-1 standard requirements
Surface Condition: Select honed or pre-honed tubes for hydraulic applications
Heat Treatment: Choose appropriate delivery conditions (+C, +LC, +SR, +A) based on application needs
Corrosion Protection: Apply coatings or protective treatments for outdoor or corrosive environments
Forming: Use proper tooling and bending radii to avoid cracking or deformation
Ideal Application Scenarios
Precision bore tubes for hydraulic cylinders with minimal leakage
Accurate structural elements requiring minimal rework
Cost-effective mechanical parts where standard mild steel is insufficient but high-alloy steels are excessive
