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Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant

Categories Honed Tube
Brand Name: HY
Certification: ISO9001:2008
Place of Origin: China
MOQ: 5 tons
Price: Negotiation
Payment Terms: L/C, T/T
Supply Ability: 30tons a day
Delivery Time: 30days
Packaging Details: Anti rust oil to be applied on material and each rod to be packed in paper sleeve
Product name: Mechanical Tube
Material: Steel
Straightness: Not more than 1.5mm / m
Length: 5m - 5.8m
OD tolerance: H8
Delivery status: Stress Relieving Annealed
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    Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant

    Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant


    Detailed Product Description

    Cold drawn seamless tubes for mechanical and automotive components have the precise tolerance

    as per design purpose, especially for the small outside diameter and heavy wall tube which is beyond

    the limit of the welded tube size range. By cold drawing, the mechanical properties get increased.


    Specifications Comparison table


    Items

    China

    Steel Grade

    European

    Uion

    Steel Grade

    American

    Steel Grade

    Germany

    Steel Grade

    Precision

    Seamless

    Tube

    GB3639

    10

    20

    35

    45

    30CrMo

    42CrMo

    EN 10305-1

    E 215

    E235

    E355

    C35E

    C45E

    30CrMo4

    42CrMo4

    AST M

    A519

    1010

    1020

    1026

    1045

    4130

    4140

    DIN2391

    BK

    BK S

    ST 35

    ST 37

    ST 45

    ST 52



    Chemical&mechanical properties

    EN 10305/EN 10305-4

    DIN2391

    Chemical

    composition

    %(max)

    Steel Gr,

    C

    Si

    Mn

    P

    S

    Chemical

    composition

    %(max)

    Steel Gr.

    C

    Si

    Mn

    P

    S

    E215

    0.10

    0.35

    0.70

    0.025

    0.025

    ST 35

    0.10

    0.35

    0.40

    0.025

    0.025

    E235

    0.17

    0.35

    1.20

    0.025

    0.025

    ST 37

    0.17

    0.35

    1.20

    0.025

    0.025

    E355

    0.22

    0.55

    1.60

    0.025

    0.025

    ST 52

    0.22

    0.55

    1.60

    0.025

    0.025

    Delivery Condition

    Delivery Condition

    +C

    No heat treatment after

    the final cold drawing process

    BK

    Tubes do not undergo heat treatment

    following the final cold forming and,

    thus, have a rather high resistance

    to deformation

    +LC

    After the final heat treatment

    there’s a suitable drawing pass

    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)

    +SR

    After the final cold drawing

    process there’s a stress relief

    heat treatment in controlled

    atmosphere

    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

    +A

    After the cold drawing process the

    tubes are annealed in

    a controlled atmosphere

    GBK

    The last cold forming process

    is followed by a nnealing in

    a controlled atmosphere

    +N

    After the final cold drawing

    operation the tubes are normalized

    in a controlled atmosphere

    NBK

    The last cold forming process

    is followed by annealing above the

    upper transformation point in a

    controlled atmosphere

    Mechanical Properties

    Mechanical Properties


    Steel Gr.

    +C

    +LC

    +SR

    +A

    +N


    Steel Gr.

    BK

    BKW

    BKS

    GBK

    NBK

    Tensile

    Strength

    (Rm)(MPa)

    Min

    E215

    430

    380

    380

    280

    290-430

    Tensile

    Strength

    (Rm)(MPa)

    Min

    ST 30AL

    430

    380

    380

    280

    290-430

    E235

    480

    420

    420

    315

    340-480

    ST 37

    440

    370

    380

    315

    340-470

    E355

    640

    580

    580

    450

    490-630

    ST 52

    640

    580

    580

    450

    490-630

    Yield

    Strength

    (ReH)(MPa)

    Min

    E215

    ≥0.8Rm

    ≥0.7Rm

    280

    ≥0.5Rm

    215

    Yield

    Strength

    (ReH)(MPa)

    Min

    ST 30AL

    ≥0.8

    Rm

    ≥0.7

    Rm

    280

    ≥0.5

    Rm

    215

    E235

    ≥0.8Rm

    ≥0.7Rm

    280

    ≥0.5Rm

    235

    ST 37

    ≥0.8

    Rm

    ≥0.7

    Rm

    280

    ≥0.5

    Rm

    235

    E355

    ≥0.8Rm

    ≥0.7Rm

    450

    ≥0.5Rm

    355

    ST 52

    ≥0.8

    Rm

    ≥0.7

    Rm

    420

    ≥0.5

    Rm

    355

    Elongation

    %

    E215

    8

    12

    16

    30

    30

    Elongation

    %

    ST 30AL

    6

    10

    16

    25

    25

    E235

    6

    10

    16

    25

    25

    ST 37

    6

    10

    16

    25

    25

    E355

    4

    7

    10

    22

    22

    ST 52

    4

    7

    10

    22

    22

    a. ST 30Al with Aluminium composition min 0.025%

    OD TOLERANCE

    OVER

    UP TO AND INCLUDING

    TOLERANCE

    MM

    MM

    MM+/-


    30

    0.10

    50

    70

    0.15

    WALL TOLERANCE

    The tolerance including ecentricity, shall be +/- 10% with a minimum of +/- 0.10mm

    STRAIGHTNESS

    Tubes shall not depart from straightness by more than 1.5 mm/m

    Product Tags:

    honed cylinder tube

      

    honed tubes

      
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