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GB/T 3639 TORICH Round Anti Rust Seamless Steel Pipes For Precision Applications

Categories Seamless Steel Tube
Brand Name: TORICH
Model Number: GB 28884
Certification: ISO 9001 ISO 14001 TS 16949
Place of Origin: Zhejiang China
MOQ: 5 Ton
Price: negotiable
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 50000 Ton/Year
Delivery Time: 40 days
Packaging Details: Packing in wooden box,hexagonal bundles or other seaworthy ways.
Product Name:: TORICH GB 28884 300L - 3000L Seamless Steel Tubes for Large Volume Gas Cylinder
Material:: 30CrMoE 42CrMoE 4130X 4142
Surface:: With Anti Rust Protection
Application:: For Precision Applications
Shape:: Round
OD:: 80-1200mm
WT:: 4-100m
Length:: 4-12m
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    GB/T 3639 TORICH Round Anti Rust Seamless Steel Pipes For Precision Applications

    TORICH GB 28884 300L - 3000L Seamless Steel Tubes for Large Volume Gas Cylinder

    Material:30CrMoE 42CrMoE 4130X 4142

    Size Range:OD:80-1200mm

    WT:4-100mm

    General Length:4-12m


    Tolerance:

    According to the following tables or customers’ request.


    CategorySizeTolerance
    Outside Diameter(D)-±1%D
    Minimum Wall Thickness(Smin)D≤559

    +25%Smin

    0

    D>559

    +27.5%Smin

    0

    Wall Thickness(S)D≤559

    +12.5%S

    -10%S

    D>559±12.5%S

    Mechanical Properties:


    SteelTensile StrengthLower yield strength or specified plasticity elongationpercentage elongation after fractureYield ratioHardness-40℃ Shock absorption energy
    GradeHBWKV2/
    Ra /ReL or Rp0.2a /A50mma/(ReL/Ra orRp0.2/Ra)/%J
    MPaMPa%AverageSingle Sample
    30CrMoEb≥720≥485≥20≤86≤269≥40≥32
    42CrMoEc≥930≥760≥16-≤330≥40≥32
    Grade 30CrMoE mechanical property is equivanlent to 4130X
    Grade 42CrMoE mechanical property is equivanlent to 4142

    Chemical Compositions:


    Steel

    Grade

    Tensile Strength

    Ra /

    MPa

    Lower yield strength or specified plasticity elongation

    ReL or Rp0.2a /

    MPa

    percentage elongation after fracture

    A50mma/

    %

    yield ratio

    (ReL/Ra or Rp0.2/Ra)/

    %

    Hardness

    HBW

    -10℃Shock absorption energy KV2/

    J

    AverageSingle Sample
    30CrMoEb72048520862694032
    42CrMoEc93076016-3304032

    Characteristic:

    TORICH QUALITY ASSURANCE

    Good surface quality

    Good OD and ID tolerance controlled to Technical Standard
    Stable quality
    100% Eddy Current Test


    Processing:


    Technical Delivery Conditions:Steel pipe in hot rolling(enlarge) state,cold drawn or cold drawn after heat treatment state delivery.


    Widely used in the field of:Manufacturing gas cylinder with 300L~3000L volume


    Product Images:

    300L~3000L Seamless Steel Tubes for Large Volume Gas Cylinder GB 28884

    QUALITY CONTROL

    1~ Incoming Raw Material Inspection
    2~ Raw Material Segregation to avoid steel grade mix-up
    3~ Heating and Hammering End for Cold Drawing
    4~ Cold Drawing and Cold Rolling, on line inspection
    5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
    6~ Straightening-Cutting to specified length-Finished Measuring Inspection
    7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
    8~ Packing and Stocking.


    100% of our steel tubes are dimensionally checked
    100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
    100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

    Quality GB/T 3639 TORICH Round Anti Rust Seamless Steel Pipes For Precision Applications wholesale
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