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EN10219-2 Non - alloy / Fine Grain Steels Cold Formed Welded Structural Hollow Sections

Categories Welded Steel Tube
Brand Name: Torich
Model Number: EN10219-2
Certification: ISO 9001:2008 , TS16949
Place of Origin: China
MOQ: 5MT
Price: USD600-1100per ton
Payment Terms: L/C, T/T
Supply Ability: 6000MT/Month
Delivery Time: 30~40days
Packaging Details: Anti-Rust Protection In bundles with seaworthly packing
Product Name:: Welded Steel Tube
Standard:: EN10219-2
Material: Non-Alloy, Fine Grain Steels
Shape: Round , Rectangle , Square
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    EN10219-2 Non - alloy / Fine Grain Steels Cold Formed Welded Structural Hollow Sections

    EN10219-1 EN10219-2 Cold Formed Welded Structural Hollow Sections of Non-Alloy and Fine Grain Steels


    Part 1: Technical delivery condition

    Part 2: Tolerances, Dimensions and Sectional Properties


    Structural hollow section manufacturing process:

    Structural hollow sections are manufactured by electric welding or submerged arc welding without subsequent heat treatment. Hollow sections manufactured by a continuous process shall not incude the welds used to join the lengths of strip prior to forming the hollow section, except that for helically welded submerged arc-welded (SAW) hollow sections, such welds shall be permitted when tested in accordance with 9.4.3.0 EN10219-1, EN10291-2.


    Delivery conditions:

    The hollow sections are delivered cold formed without subsequent heat treatment except that weld seam maybe in the as welded or heat treated condition

    NOTE: For SAW hollow sections above 508 mm outside diameter it may be necessary to perform a warm shaping operation, which does not affect the mechanical properties, in order to meet the out-of-roundness tolerance requirements.


    Suitability for hot dip galvanization:

    The products are suitbale for hot dip galvanization.


    TABLE 1 Tolerances

    Symbol

    Unit

    Definition

    B

    mm

    Nominal length of side of square hollow section.Nominal length of the shorter side of a rectangular hollow section

    C1/C2

    mm

    Length of corner region of a square or rectangular hollow section

    Dmax/Dmin

    mm

    The maximum and minimum outside diameter of a circular hollow section measured in the same plane

    H

    mm

    Nominal length of the longer side of a rectangular hollow section

    M

    Kg/m

    Mass per unit length

    T

    mm

    Nominal thickness

    O

    %

    Out-of-roundness

    T

    mm

    Nominal thickness

    V

    mm

    Total measured twist


    TABLE 2 Tolerances

    Characteristic

    Circular hollow sections

    Square and rectangular hollow sections

    Outside dimensions

    (D,B andH)

    ±1% with a minimum of ±0.5mm and a maximum of ±10mm

    Side length

    (mm)

    Tolerance

    H,B <100


    100≤H,B≤200

    H,B>200

    ±1% with a minimum of

    ±0.5mm

    ±0.8%

    ±0.6%

    Thickness(T)

    For D≤406.4mm:

    T≤5mm ±10%

    T>5mm ±0.50mm

    For D>406.4mm:

    ±10% with a maximum of 2mm

    T≤5mm ±10%

    T>5mm ±0.50mm

    Out-of-roundness(O)

    2% for hollow sections having a diameter to thickness ratio not exceeding 100①

    ——

    Concavity/convexity②

    ——

    Max. 0.8% with a minimum of 0.5mm

    Squareness of side

    ——

    90° ±1°

    External corner profile

    ——

    See table 3

    Twist(V)

    ——

    2mm plus 0.5mm/m length

    Straightness

    0.20% of total length

    0.15% of total length

    Mass(M)

    ±6% on individual lengths

    ①Where the diameter to thickness ratio exceeds 100 the tolerance on out-of-roundness shall be agreed.

    ②The tolerance on convexity and concavity is independent of the tolerance on outside dimensions.


    TABLE 3 External Corner Profile

    Thickness

    T

    mm

    External Corner Profile

    C1,C2,or R1

    mm

    T≤6

    6<T≤10

    10<T

    1.6T to 2.4T

    2.0T to 3.0T

    2.4T to 3.6T

    The sides need not be tangential to the corner arcs.


    TABLE 4 Tolerances on length

    Type of length

    Range in mm

    Tolerance

    Random length

    4000 to 16000 with a range of 2000 per order item

    10% of sections supplied may be below the minimum for the ordered range but not less than 75% of the minimum of the range

    Approximate length

    ≥4000

    ﹢50mm

    0

    Exact length

    <6000

    ≥6000 to ≤10000

    >10000

    ﹢5mm

    0

    ﹢15mm

    0

    ﹢5mm +1mm/m

    0

    ①The purchaser shall indicate in the enquiry and order the type of length required and the length range or length required.


    TABLE 5 Tolerances on height of internal and external weld bead for submerged arc welded hollow sections

    Thickness(T)

    Maximum weld bead height(mm)

    ≤14.2

    >14.2

    3.5

    4.8


    Products forms:

    CFCHS = cold formed circular hollow section

    CFRHS = cold formed square or rectangular hollow section


    Charecteristics:

    - Tolerances on dimensions and shapes

    - Elongation

    - Tensile strength

    - Yield strength

    - Impact strength

    - weldability (chemical composition)


    Normative references:

    EN287-1, Qualification test of welders - Fusion welding - Part 1: Steels


    EN10020-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature


    EN10020:2000, Definition and classification of grades of steel


    EN10021:1983, General technical delivery requirements for steel and iron products


    EN10027-1, Designation systems for steels - Part 1: Steel names


    EN10027-2, Designation systems for steels - Part 2: Numericl systems


    EN10045-1, Metallic materials - Charpy impact test - Part 1: Test method


    EN10052:1993, Vocabulary of heat treatment terms for ferrous products


    EN10168, Steel products - Inspection documents - List of information and description


    EN10204, Metallic products - Types of inspection and description


    EN10219-2:2006, Cold formed welded structural hollow sections of non-alloy and fine grains steels - Part 2: Tolerances, dimensions and sectional properties


    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 longitudinal imperfections


    EN10246-8, Non-destructive testing of steel tubes - Part 8: Automatic ultrasonic testing of the weld seam of electric welded steel tubes for the detection of longitudinal imperfections


    EN10246-9, Non-destructive testing of steel tubes - Part 9: Automatic ultrasonic testing of the weld seam of submerged arc-welded steel tubes for the detection of longitudinal and/or transverse imperfections


    EN10246-10, Non-destructive testing of steel tubes - Part 10: Radiographic testing of the weld seam of automatic fusion arc welded steel tubes for the detection of imperfections


    EN1056, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel


    CR 10261, ECISS information Circular 11 - Iron and steel - Review of available methods of chemical analysis


    EN10266:2003, Steel tubes, fittings and steel structural hollow sections - Symbols and definitions of terms for use in product standards


    EN ISO 377, Steel and steel products - Location and preparation of seamless and test pieces for mechanical testing (ISO 377: 1997)


    EN ISO 643, Steels - Micrographic determination of the apparent grain size ( ISO 643:2003)


    EN ISO 2566-1, Steels - Conversion of elongation valves - Part 1: Carbon and low alloy steels ( ISO 2566-1:1984 )


    EN ISO 9001:2000, Quality management systems - Requirements ( ISO9001:2000)


    EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition( ISO 14284:1996)


    EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules ( ISO15607:2003)


    EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004)


    EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1: 2004)

    Product Tags:

    welded steel pipe

      

    welding steel tubing

      
    Quality EN10219-2 Non - alloy / Fine Grain Steels Cold Formed Welded Structural Hollow Sections for sale
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