GB/T 14291 Q235A / Q235B ERW Cold Drawn Welded Steel Pipes For Ore Pulp Transportation
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
|Minimum Order Quantity :||5 tons||Price :||600-1200 USD/ton|
|Packaging Details :||oil antirust in hexagonal bundles or in carbon boxes or wooden boxes||Delivery Time :||5-8weeks work days|
|Supply Ability :||50000 tons per year|
|Place of Origin:||China||Brand Name:||TORICH|
|Certification:||ISO 9001 ISO14001 TS16949 DNV SON||Model Number:||EN10305-2|
|Material:||Carbon Steel||Steel Grade:||E235 E335 Etc|
|Production Method:||Welded And Cold Drawn||Characteristic:||Presision Rolling Burnish & Honing|
|Note:||Special Steel Grade Is Also Available|
welding steel tubing,
electric resistance welded steel tube
Welded Steel Tube DOM Tubing EN10305-2 for Hydraulic Steel Tubing
EN10305-2 Welded Precision Cold Drawn Steel Tubes
Applications: for Auto Industry/for Machinery Use/Oil Cylinder Tube/Motorcycle Shock Absorber
Auto shock absorber inner cylinder/Telescopic Cylinders
Size range: O.D.:6-420mm W.T.:1-50mm L:max12000mm
Supplying Steel Grade:
E155, E195, E235 E275, E355
+C, +Lc, + SR, +A, +N
DOM, ERW+ Cold Drawn
ID Honing + Roller Burnish+ Skiving
The internal and external surface finish of the tubes is smooth, while the Weld Seam is somehow not visible or tangible.
The ID surface with roughness Ra≤4μm, the best ID smoothness we could reach Ra≤0.8μm
The inner surface can be measured and reported if this is requested by the purchaser before PO.
Telescopic systems, Jack Lifting systems, Hydraulic Cylinders, Oil Cylinders etc.
Steel Grade and Chemical Compositions:
|Steel Name||Steel Number||max||max||max||max||max|
Note: Special steel grade is also available, according to customer request.
For Application of:
Quality Inspection standard and Normative references:
EN10002-1, Metallic materials- Tensile testing- Part 1: Method of test at ambient temperature
EN10020, Definition and classification of grades of steel
EN10021, General technical delivery requirements for steel and iron products.
EN10027-1, Designation systems for steel - Part 1: Steel names, principal symbols.
EN10027-2, Designation systems for stee l- Part 2: Numerical system
EN10052, Vocabulary of heat treatment terms for ferrous products
EN10204, Metallic Products - Types of inspection documents
EN10233, Metallic materials - Tube - Flattening test
EN10234, Metallic materials - Tube - Drift expanding test
EN10246-1, Non-Destructive testing of steel tubes - Part 1: Automatic electromagnetic testing of seamless and welded(except submerged arc-welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness
EN10246-3, Non-Destructive testing of steel tubes - Part 3: Automatic eddy current testing of seamless and welded ( except submerged arc-welded) steel tubes for the detection of imperfections
EN10246-5, Non-Destructive testing of steel tubes - Part 5: Automatic full peripheral magnetic transducer /flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longtitudinal imperfections
EN10246-7, Non-Destructive testing of steel tubes - Part 7: Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal imperfections.
EN10256, Non-Destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel
EN ISO377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing ( ISO 377:1997)
EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels ( ISO2566-1:1984)
ENV10220, Seamless and welded steel tubes - Dimension and masses per unit length.
EN10266, Steel Tubes, fittings and structural hollow sections - Definition and Symbols for use in products standards