EN10305-2 E355 1.0580 Mild Precision Round Cold Drawn Welded Steel Tube

EN10305-2 E355 1.0580 Mild Precision Round Cold Drawn Welded Steel Tube Grade C Si Mn P S E355 0.22 max 0.55 max 1.60 max 0.025 max 0.025 max Grades Delivery Conditions Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Elongation in the longitudinal direction Al (%) E355 +C 540 min / 5 min E355 +A 450 min / 22 min E355 +N 3490-630 355 min 22 min Sizes Range OD:18mm-230mm, WT:1.5mm-15mm Tolerance of Dimensions Inner Diameter: H9 H10 Inner Surface Roughness: Ra 0.80μ max Eccentricity: 3% max  Delivery Conditions: +C Hard. No final treatment after final cold drawing. +LC Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area). +SR Stress Relieved. After final cold drawing, the tubes are stress relieved in a controlled atmosphere. +A Annealed. After final cold drawing, the tubes are annealed in a controlled atmosphere. +N Normalized. After final cold drawing, the tubes are normalized in a controlled atmosphere.   Process: The cold drawn welded tube is produced by drawing ERW (electric resistance welded tube) through a die and over a mandrel plug.During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics. Tube Finishing Options: Our tubes can be additionally treated to achieve the exact finishes and ends needed by customers. These are some of the additional operations that can be performed on our tube:Drawing, Heat treatment, Bulging, Swaging, Cutting, Deburring, Vibro cleaning, Threading,De-rusting, Chamfering, Washing. Surface treatment: Oiled, black painted, hot dipped galvanized or phosphate coating as required. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.   Standard AND Optional Testing: Visual and dimensional test 100%. Eddy current test 100% acc. to EN 10246-3. Ultrasonic test 100% acc. to EN 10246-7. Chemical composition. Impact test. Mill Test Certificate: The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.   Our Services: Third Party inspection acceptable. such as SGS, BV etc. Supplying financial support with usance L/C 180 days after B/L date. >>>Standard EN 10305 Steel Tubes for Precision Application Seamless Cold Drawn Tubes DIN 2393 Welded Precision Steel Tube ASTM A513 Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing >>>Steel Grades EN: E195 E235 E275 E355 ASTM: 1010 1020 4130 DIN: St12 St37.2 St52-3 JIS: SPCC SPHC