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DIN 2391 E235 E355 Galvanized Steel Tube For Automobile Cold Drawing Steel Tubing

Categories Galvanized Steel Tube
Place of Origin: Jiangsu China (Mainland)
Brand Name: WUXI SYLAITH
Certification: SGS ISO ROHS
Model Number: E235 E355
MOQ: 1 MT
Packaging Details: Exporting package/wooden box package/Or per customers’ requirement
Delivery Time: 3~10 days
Payment Terms: L/C, T/T
Supply Ability: 8000MT/Month
Price: Negotiable
Processing Service: Welding, Punching, Cutting, Bending, Decoiling
Grade: E235 E355
Diameter: 20-600mm
Section Shape: Round
Standard: DIN 2391
Surface treatment: Galvanized
Length: 1-12m
Thickness: 2 - 80 mm
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    DIN 2391 E235 E355 Galvanized Steel Tube For Automobile Cold Drawing Steel Tubing


    DIN 2391 E235 E355 Galvanized Steel Tube For Automobile Cold Drawing Steel Tubing


    In order to make best quotation, Please kindly indicate length, width, thickness and the standard,material you required.


    item
    E235 E355 Seamless Weld Cold Drawn Galvanized Carbon Precision Steel Pipe Tube
    Alloy Or Not
    Is Alloy
    Section Shape
    Round
    Special Pipe
    Thick Wall Pipe
    Standard
    BS1387, En10255, API 5L, ASTM A53, JIS G3444
    Grade
    BS1387 DIN 2448 ASTM A35 A36 SA106,etc
    Surface Treatment
    Galvanized
    Tolerance
    ±1%
    Oiled or Non-oiled
    Non-oiled
    Invoicing
    by actual weight
    Delivery Time
    Within 7 Days
    Length
    1-12m
    Diameter
    20-600mm
    Wall Thickness
    0.8-20mm
    Inspection
    The Third Party Inspect
    Payment Terms
    30%TT Advance + 70% Balance
    Usage
    Fluid Pipe, Gas Pipe, OIL PIPE, Structure Pipe,etc
    Package
    Seaworthy Standard Package
    PRICE TERM
    CIF CFR FOB EX-WORK

    Description:


    Dimensions of the galvanized tubes for hydraulic and pneumatic lines:


    Outside diameter ranges from 6 to 350 mm and the wall thickness ranges from 0.8 to 30 mm. Precision steel tubes are delivered according to EN 10305-4, DIN 2391-1, STN 42 6711 and 42 6712, ČSN 42 6711 and 42 6712.


    Synopsis of Process Routing:

    DIN highly accurate cold drawn bright seamless steel tube is used as the tube to be galvanized, the outer wall is electroplated, caps are covered at two ends of tube to prevent from the dust.

    Main Features:

    Different color of zinc such as white, yellow, army-green, black is evenly distributed in the surface of the tube, good brightness and antirust and antisepsis could improve after zinc coated.


    Length of the galvanized tubes:

    in diameter <= 16 mm >=6000 + 100 mm
    in diameter >= 16 mm <=24000 + 50 mm


    Tolerances of the zinc coated tubes:


    -tolerances of the outside diameter:

    diameter between 4 - 30 mm

    ±0,08 mm

    diameter between 35 - 38 mm

    ±0,15 mm

    diameter above 42 mm

    ±0,20 mm

    -tolerances of the inside diameter are according to EN 10305-4

    -tolerance of the wall thickness ± 10%


    The Main Steel grades for the zinc coated tubes:


    St 30 Si / St 30 Al / St 35 / St37.4 / St45 / St 52 / St52.4 / E235, E255,E355

    DIN 2391 / EN 10305-1/ EN 10305-4

    Precision seamless tube and pipe with European&Germany standard

    Application:

    for Atuo;for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder.

    Size(mm):

    O.D.:6mm-350mm ; W.T.:1-30mm; L:max 24000


    Grade and Chemical Composition(%):


    Grade

    Chemical Composition(%):

    C max

    Si max

    Mn

    P max

    S max

    St 52

    0.22

    0.55

    ≤1.60

    0.025

    0.025

    St 45

    0.21

    0.35

    ≥0.40

    0.025

    0.025

    St 35

    0.17

    0.35

    ≥0.40

    0.025

    0.025

    St 30 Si

    0.10

    0.30

    <=0.55

    0.025

    0.025

    St 30 Al

    0.10

    0.05

    <=0.55

    0.025

    0.025


    Condition on delivery:


    Steel Grade

    BK

    BKW

    GBK

    NBK

    Code No.

    Tensile

    Strength

    N/mm2 min

    Elongation at rupture N/mm2 min

    Tensile

    Strength

    N/mm2 min

    Elongation at rupture N/mm2 min

    Tensile

    Strength

    N/mm2 min

    Elongation at rupture N/mm2 min

    Tensile

    Strength

    N/mm2 min

    Elongation at rupture N/mm2 min

    St 52

    590

    4

    540

    7

    490

    22

    490-630

    22

    St 45

    540

    5

    470

    8

    390

    21

    440-570

    21

    St 35

    440

    6

    370

    10

    315

    25

    340-470

    25

    St30 Si

    400

    8

    330

    12

    280

    30

    290-420

    30

    St30 Al

    400

    8

    330

    12

    280

    30

    290-420

    30


    Final supply conditions:


    Designation

    Symbol

    Description

    Cold finished (hard)

    BK

    Tubes do not undergo heat treatment following the final cold forming and, thus,

    have a rather high resistance to deformation.

    Cold finished (soft)

    BKW

    The final heat treatment is followed by cold drawing involving limited deformation.

    Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding).

    Cold finished and stress-relieved

    BKS

    Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions,

    the increase in the residual stresses involved enables both forming and machining to a certain degree.

    Annealed

    GBK

    The last cold forming process is followed by annealing in a controlled atmosphere.

    Normalized

    NBK

    The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.


    Galvanized tube category and related standard:


    Galvanized tube category and related standard

    Galvanized tube category

    Related Standard

    Zinc coating thickness

    Salt spray test

    Gr3+ Galvanized tube with blue and white zinc

    ASTM B633-07
    (Type III,SC 1/2/3/4)

    5-25um

    24--72 hours without white rust;48--168 hours without red rust

    Gr3+ Galvanized tube with color zinc

    ASTM B633-07
    (Type II,SC 1/2/3/4)

    5-25um

    48--96 hours without white rust;48--240 hours without red rust

    Gr6+ Galvanized tube with color zinc

    ASTM B633-98
    (Type II,SC 1/2/3/4)

    5-25um

    24--96 hours without white rust;48--124 hours without red rust


    Applications:


    Zinc coated precision steel tubes (galvanized tubes) are destined for hydraulic and pneumatic pressure distribution (so called HPL tubes),

    production of automobile components, utility vehicles as well as for production of machine products such as fittings and joints.

    Cold drawn precision tubes are used as the semi-finished product and they are made from rolled seamless tubes.

    Precision tubes HPL types are made from carbon and alloyed steel.


    Application areas:

    Automotive, military, railway industry, with high requirement of the tubes brightness, cleanness, antirust, and antisepsis.


    Product Photo



    Factroy Pictures


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    FAQ


    Q1: ARE YOU FACTORY OR TRADER?
    A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.


    Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
    A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available.


    Q3: HOW TO GET A SAMPLE?
    A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.


    Q4: CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
    A4: Yes, we can produce the products according to your drawings that will be most satisfy you.


    Q5: HOW TO VISIT YOUR FACTORY?
    A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
    If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time)


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