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Seamless Steel Tubes Cold-Formed building material thick wall thickness

Seamless Steel Tubes Cold-Formed building material thick wall thickness

Categories Structural Steel Tubes & Pipes
Place of Origin: China
Brand Name: Torich
Certification: ISO9001, ISO14001, TS16949
Model Number: GOST8734-75
Price: NEGOTIATION
Packaging Details: IN BUNDLES
Delivery Time: 45-60 DAYS
Payment Terms: T/T L/C
Supply Ability: 60000 TONS PER YEAR
Min Order: 5 tons
Shape: Round
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    Seamless Steel Tubes Cold-Formed building material thick wall thickness

    Gost 8734-75 Seamless steel tubes Cold-Formed


    Outside Diameter: 5 – 140 mm
    (5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 32; 34; 35; 36; 38; 40; 42; 45; 48; 50; 51; 53; 54; 56; 57; 60; 63; 65; 68; 70; 73; 75; 76; 80; 83; 85; 89; 90; 95; 100; 102; 108; 110; 120; 130; 140)

    Wall Thickness: 0,4 – 12 mm
    (0,4; 0,5; 0,6; 0,8; 1; 1,2; 1,4; 1,5; 1,6; 1,8; 2; 2,2; 2,5; 2,8; 3; 3,2; 3,5; 4; 4,5; 5; 5,5; 6; 6,5; 7; 7,5; 8; 8,5; 9; 9,5; 10; 11; 12)

    Tolerances:
    OD:
    D 5 – 10 mm: ± 0,15 mm
    D 11 – 30 mm: ± 0,30 mm
    D 32 – 50 mm: ± 0,40 mm
    D 51 – 140 mm: ± 0,8%

    WT:
    S 0,4 – 1 mm: ± 0,12 mm
    S 1,2 – 5 mm: ± 10%
    S 5,5 – 12 mm: ± 8%

    Notes:

    1. Steel grades: 10, 20, 35, 45, 10Mn2, 15Cr, 20Cr, 40Cr, 30CrMnSi, 15CrMo acc. to GOST 1050-88, GOST 19281-89, GOST 4543-71. Others steel grades are available subject to agreement.
    2. Dimensions and tolerances acc. to GOST 8734-75.
    3. Technical requirements acc. to GOST 8733-74.
    4. Length from 1.5 to 11.5 m depending on diameter and wall thickness.
    Sizes
    OD, mm
    WT, mm
    OD, mm
    WT, mm
    OD, mm
    WT, mm
    5
    0,5 – 1,5
    16 – 20
    0,4 – 5
    45 – 48
    1 – 10
    6
    0,5 – 2
    21 – 22
    0,4 – 6
    50 – 56
    1 – 12
    7 – 8
    0,5 – 2,5
    23 – 24
    0,5 – 4
    57 – 70
    1,5 – 12
    9
    0,4 – 3
    25 – 28
    1 – 7
    73 – 95
    2 – 12
    10 – 12
    0,4 – 3,5
    30 – 36
    1 – 8
    100 – 130
    2,5 – 12
    13 – 15
    0,4 – 4
    38 – 42
    1 – 9
    140
    3 – 12

    Mechanical properties
    Steel Grade
    Tensile Strength, N/mm2(min)
    Yield Strength,N/mm2 (min)
    Elongation, % (min)
    10
    343
    206
    24
    20
    412
    245
    21
    35
    510
    294
    17
    45
    589
    323
    14
    10Mn2
    422
    245
    22
    15Cr
    412
    -
    19
    20Cr
    431
    -
    17
    40Cr
    618
    -
    14
    30CrMnSi
    491
    -
    18
    15CrMo
    431
    226
    21

    Chemical Composition (%, max)
    Steel Grade
    C
    Si
    Mn
    Cr
    Ni
    Mo
    S
    P
    Cu
    N
    10
    0,07-0,14
    0,17-0,37
    0,35-0,65
    0,15
    0,3
    -
    -
    -
    -
    -
    20
    0,17-0,24
    0,17-0,37
    0,35-0,65
    0,25
    0,25
    -
    0,03
    0,025
    0,30
    0,008
    35
    0,32-0,40
    0,17-0,37
    0,50-0,80
    0,25
    0,30
    -
    0,04
    0,035
    0,30
    -
    45
    0,42-0,45
    0,17-0,37
    0,50-0,80
    0,25
    -
    -
    -
    -
    -
    -
    10Mn2
    0,07-0,15
    0,17-0,37
    1,2-1,6
    0,30
    0,30
    -
    0,035
    0,035
    0,30
    -
    20Cr
    0,17-0,23
    0,17-0,37
    0,50-0,80
    0,70-1,0
    0,30
    -
    0,035
    0,035
    0,30
    -
    40Cr
    0,36-0,44
    0,17-0,37
    0,50-0,80
    0,80-1,10
    0,30
    -
    0,035
    0,035
    0,30
    -
    30CrMnSi
    0,28-0,34
    0,90-1,20
    0,80-1,10
    0,80-1,10
    0,30
    -
    0,005
    0,025
    -
    -
    15CrMo
    0,11-0,18
    0,17-0,37
    0,40-0,70
    0,80-1,10
    0,30
    0,40-0,55
    0,025
    0,025
    0,30
    -


    steel tube factory for GOST8734-75

    GOST-8734-75 Seamless Steel Tubes Manufacturer China



    Quality Seamless Steel Tubes Cold-Formed building material thick wall thickness for sale
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