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Home > Products > Precision Steel Tube > EN10305 E355 Cold Drawn Seamless Steel Tube for Hydraulic Cylinders - Corrosion Resistant & High Pressure

EN10305 E355 Cold Drawn Seamless Steel Tube for Hydraulic Cylinders - Corrosion Resistant & High Pressure

Product Details

Place of Origin: Jiangsu, China

Brand Name: Hongbao

Certification: TS16949

Model Number: HBPST-1

Payment & Shipping Terms

Minimum Order Quantity: 1 ton

Price: Negotiable

Packaging Details: Seaworthy plywooden case

Delivery Time: Within 50 days if production

Payment Terms: L/C,T/T

Supply Ability: 30000MT per year

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Highlight:

Seamless Steel Pipes Honing Tube

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42CrMo4 Seamless Steel Pipes

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St52 Seamless Steel Pipes

Material:
ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5
Origin:
Jiangsu, China
OD:
6-120mm
Thickness:
0.5-15mm
Type:
Welded Or Seamless
Processing:
Cold Drawn, Cold Rolled
Material:
ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5
Origin:
Jiangsu, China
OD:
6-120mm
Thickness:
0.5-15mm
Type:
Welded Or Seamless
Processing:
Cold Drawn, Cold Rolled
EN10305 E355 Cold Drawn Seamless Steel Tube for Hydraulic Cylinders - Corrosion Resistant & High Pressure
EN10305 OD10 E355 Seamless Steel Tube, Cold Drawn Precision Steel Tube For Hydraulic Cylinder
Product Overview

Seamless steel tubes, specifically cold drawn precision steel tubes for hydraulic cylinders, are engineered for high performance and durability. These tubes undergo a meticulous cold drawing process, resulting in exceptional dimensional accuracy and a superior surface finish. Designed to withstand high pressure and stress, they exhibit excellent tensile strength and fatigue resistance, making them ideal for hydraulic applications. The seamless construction eliminates weld weaknesses, enhancing reliability and safety. With outstanding corrosion resistance, these tubes ensure longevity in challenging environments. Their precision specifications cater to various industries, including automotive and manufacturing, where performance and durability are crucial for hydraulic systems.

Technical Specifications
Standard DIN2391, EN10305, ASTM A519, GB/T 3639-200
Material Q355B Q355D C20, ST52, E355 SAE1026, CK45 4130 4140 STKM 13C
Heat Treatment BK+S
Outer Diameter 40-480mm
Inner Diameter 30-400mm
I.D Tolerance H8-H9
Length Fixed Length, Random Length (3-9m) or as per customer requirements
Straightness 0.5-1/1000
ID Roughness RA 0.1-0.8 micron (max)
Technology Honed & SRB (Skived and Roller Burnished)
Scope Honed tube for hydraulic cylinder, swivel crane, injection machine, and construction machine applications
Product Features
  • Corrosion resistant
  • Accurate dimensions
  • Can sustain high pressure & temperature load
  • Rust proof finish
  • Smooth transition from flange thickness to pipe
  • Ensure excellent stress distribution
Straightness Specifications

Straightness of the tubes is influenced by the mechanical properties of the tubes. For material having the yield point ReH ≤ 500 MPa, straightness is 0.0015 multiple of the tube length maximum, allowed straightness for one meter length is 1.5 millimeters. For material with the yield point ReH > 500 MPa, the allowable straightness for the whole length of the tube is 0.0020 multiple of the tube length, allowed straightness of one meter is 2 millimeters.

Mechanical Properties at Room Temperature
Steel Grade +C +LC +SR +A +N
E155 Rm 400 MPa, A 6% Rm 350 MPa, A 10% Rm 350 MPa, ReH 245 MPa, A 18% Rm 260 MPa, A 28% Rm 270-410 MPa, ReH 155 MPa, A 28%
E195 Rm 420 MPa, A 6% Rm 370 MPa, A 10% Rm 370 MPa, ReH 260 MPa, A 18% Rm 290 MPa, A 28% Rm 300-440 MPa, ReH 195 MPa, A 28%
E235 Rm 490 MPa, A 6% Rm 440 MPa, A 10% Rm 440 MPa, ReH 325 MPa, A 14% Rm 315 MPa, A 25% Rm 340-480 MPa, ReH 235 MPa, A 25%
E275 Rm 560 MPa, A 5% Rm 510 MPa, A 8% Rm 510 MPa, ReH 375 MPa, A 12% Rm 390 MPa, A 21% Rm 510-550 MPa, ReH 275 MPa, A 21%
E355 Rm 640 MPa, A 4% Rm 590 MPa, A 6% Rm 590 MPa, ReH 435 MPa, A 10% Rm 450 MPa, A 22% Rm 490-630 MPa, ReH 355 MPa, A 22%
Chemical Composition (Ladle Analysis)
Steel Grade C max Si max Mn max P max S max
E155 0.11 0.35 0.70 0.025 0.025
E195 0.15 0.35 0.70 0.025 0.025
E235 0.17 0.35 1.20 0.025 0.025
E275 0.21 0.35 1.40 0.025 0.025
E355 0.22 0.35 1.60 0.025 0.025
Delivery Conditions
Designation Symbol Description
Cold finished (hard) BK Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation.
Cold finished (soft) BKW The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding).
Cold finished and stress-relieved BKS Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.
Annealed GBK The last cold forming process is followed by annealing in a controlled atmosphere.
Normalized NBK The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.