Cold Rolling ASTM A513 Welded Steel Tubes with DOM production
ASTM A513
Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
Size: 10-350mm
Applications: for machinery, mechanical enginee
ASTM A513 cold rolling welded precision steel tubes
2. Steel Grade:
SAE1010, SAE1020, other materials upon agreement with customers.
3. Production method:
Cold rolling on the weled steel tubes, to reach high accuracy on the OD and WT tolerance
4.Size range:
O.D.:6-350mm W.T.:1-15mm L:max12000mm
5. Packing:
In Hexagonal Bundles, with anti corrosion oil protection, with seaworthy packing
Deliver condition:
Thermal condition:
1. No final thermal treatment
2. Stress relieved
3. Annealed
4. Normalized

Applications:
Auto industry/for Machinery use/Oil Cylinder Tube/Motorcycle Shock Absorber
inner cylinder/Telescopic Cylinders
Competitive Advantage:
Good source of raw material from Bao Steel.
Prompt delivery time according to PO and agreement.
Produce exactly according to standard and customer's requirement.
Experienced export team for customer service, quick reply within 24 hours.
Production Site:


Test Methods:
Tensile test
Flattening test
Drift expanding test
Dimensional inspection
Roughness measurement
Visual examincation
Not-destructive testing
a. Test for longitudinal imperfections-
- Eddy current test - EN10246-3, level E3
- ultrasonic testing - EN10246-7, level U3
b. Leak-tightness
- Non-destructive testing for verification of leak-tightness shall be carried out in accordance with EN10246-1
EN10305 Consists of the following Parts under the general title " Steel tubes for precision applications - Technical delivery conditions "
Part 1: Seamless Cold Drawn Tubes
Part 2: Welded Cold Drawn Tubes
Part 3: Welded Cold Sized Tubes
Part 4: Seamless Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems
Part 5: Welded and Cold Sized Square and Rectangular Tubes
Part 6: Welded Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems
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 steel - Part 2: Numerical systems
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 detection of imperfections
EN10246-5, Non-destructive testing of steel tubes - Part 5: Automatic full peripheral magnetics transducer/flux leakage testing of seamless and welded ( expcept submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections
EN10246-7, 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 (EN102566-1:1984)
EN 10168, Iron and steel products - Inspection documents - List information and description
ENV10220, Seamless and welded steel tubes - Dimensions and masses per unit length
EN10266, Steel Tubes, fittings and structural hollow sections - Definitions and symbols for use in product standards
EN ISO 4287, Geometrical product specifications (GPS) - Surface Texture: Profile method - Terms, definition and surface texture parameters ( ISO 4287:1997)
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