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DIN2391 ST45 ST52 Precision Steel Tubing , Polished Steel Tube

Categories Seamless Precision Steel Tube
Brand Name: Joyruns
Model Number: DIN2391 Mechanical steel Tube
Certification: ISO9000
Place of Origin: CHANGZHOU, CHINA
MOQ: 5TONs
Price: Negotiable
Payment Terms: TT OT 100% LC AT SIGHT
Supply Ability: 1000Ton/month
Delivery Time: 30DAYS
Packaging Details: Exporting package/wooden box package
Length: Max length 12M
Type: Seamless
OD. Range: 6mm – 114.3mm
Standard: DIN2391
Grade: st35, st37, st45, st52
Wall thickness: 1mm-15mm
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    DIN2391 ST45 ST52 Precision Steel Tubing , Polished Steel Tube

    DIN2391 ST45 ST52 Precision Steel Tubing, Polished Steel Tube


    DIN2391 cold drawn and bright seamless precision steel tube is used as the tube to be phosphate. The phosphate is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent rust. The caps are covered at two ends of the tube to prevent dust.


    Description:

    1. Seamless Precision Steel Tubing, bright heat treatment without oxidation (NBK status), non-destructive testing, cleaning, phosphating, anti-rust oil dipping, the application for machine tools industry, construction machinery, shipbuilding industry-hydraulic system, automotive steel tube, and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

    2. Used in hydraulic system, automobile and precision machinery parts for cars and cylinders.

    3. Standard: DIN2391-1, DIN2391-2

    4. Grade: ST35, ST37, ST45, ST52,ST35.2,ST52.2

    5. OD. Range:6mm – 114.3mm

      Wall thickness: 1mm-15mm

      Length: Max length 12M

    6. Type: Seamless

    7. Packaging detail: Bundles with plastic paper packaged or wooden box package

    8. Delivery status: BK(+C), BKS(+SR), BKW(+LC), GBK(+A), NBK(+N)


    Applications:


    hydraulic system

    automobile

    precision machinery parts for cars and cylinders.

    Auto industry

    Oil cylinder tube


    Mechanical properties


    Grade and Chemical Composition ( )


    Item

    Grade


    C

    max

    Mn

    P

    max

    S

    max

    Si

    max

    St35

    1.0308

    0.17

    ≥0..4

    0.025

    0.025

    0.35

    St45

    1.0408

    0.21

    ≥0.4

    0.025

    0.025

    0.35

    St52

    1.0508

    0.22

    ≤1.6

    0.025

    0.025

    0.55


    Mechanical properties


    item

    grade

    Cold finished (Hard)

    (BK)

    Cold finished

    (Soft)

    (BKW)

    Cold finished and stress-relieved

    (BKS)

    Annealed (GBK)

    Normalized

    (NBK)

    Rm

    A

    Rm

    A

    Rm

    ReH

    A

    Rm

    A

    Rm

    ReH

    A

    MPa

    MPa

    MPa

    MPa

    MPa

    MPa

    1

    ST35

    480

    6

    420

    10

    420

    315

    14

    315

    25

    340-470

    235

    25

    2

    ST45

    580

    5

    520

    8

    520

    375

    12

    390

    21

    440-570

    255

    21

    3

    ST52

    640

    4

    580

    7

    580

    450

    10

    450

    22

    490-630

    355

    22



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