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En10305 Shock Absorber Honed Tubing Seamless Hydraulic

Place of Origin Jiangsu, China
Brand Name Hongbao
Certification TS16949,DNV,PED,ISO,TUV,LR
Model Number HBPST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details seaworthy plywooden case packing.
Delivery Time Within 50 days if production
Supply Ability 30000MT per year
Product Details
Brand Hongbao Origin Jiangsu,China
OD 6-120mm Thickness 0.5-15mm
Length 18000mm Max. Shape Round
Type Welded Or Seamless Processing Cold Drawn, Cold Rolled
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Shock Absorber Honed Tubing


En10305 Steel Tube


15mm Seamless Steel Tube

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Product Description

En10305 Shock Absorber Honed Tubing Seamless Hydraulic Honed Tubes


  • Stainless seamless steel pipe is a kind of long steel with hollow section and no jointsaround
  • First, the thicker the wall thickness of the product, the more economical and practical it will be. The thinner the wall thickness, the higher the processing cost will be;
  • Second, the process of this product determines its limited performance. Generally, the precision of seamless steel pipe is low:the wall thickness is uneven, the brightness of the inner and outer surfaces of the pipe is low, the cost of sizing is high, and there are pockmarks and black spots on the inner and outer surfaces that are difficult to remove;
  • Third, its detection and shaping must be processed offline. Therefore, it embodies its advantages in high pressure, high strength
  • and mechanical structure materials.



Chemical Composition and Mechanical Performance:

Table 1- Chemical composition
Steel Grade C% Si% Mn% P% S% AL%
E215 ≤0.10 ≤0.05 ≤0.7 ≤0.025 ≤0.025 ≥0.025
E235 ≤0.17 ≤0.35 0.4-1.2 ≤0.025 ≤0.025  
E255 ≤0.21 ≤0.35 0.4-1.1 ≤0.025 ≤0.025  
E355 ≤0.22 ≤0.55 ≤1.6 ≤0.025 ≤0.025  









Delivery condition of seamless cold drawn mechanical tubing

  1. BK (+C) Cold finished/hard (cold finished as drawn).
  2. BKW (+LC) Cold finished/soft
  3. BKS (+SR) Cold finished/stress relieve annealed.
  4. GBK (+A) Annealed.
  5. NBK (+N) Normalized.

Round Cold Drawn Welded Precision DOM Steel Tube is manufactured according to the technical specification of EN10305-2 Cold Drawn Welded Precision Steel Tubes DOM tubing, with steel grade of E155, E195, E235, E275, E355 and delivery conditions of +C +LC +SR +A +N