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Home > Products > Boiler Tube > Carbon Steel Boiler Tube > DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes

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DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes
DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes
DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes
DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes
DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes

DIN2391 ST52.4 NBK Precision Cold Drawn Seamless Tubes

Payment Type: L/C,T/T,Money Gram,Western Union
Incoterm: FOB,CFR,CIF
Min. Order: 1 Ton
Delivery Time: 25 Days

Basic Info

    Model No.: Carbon Steel Tubes

    Type: Seamless

    Certification: API, CE, UL

    Application: Structure Pipe, Fluid Pipe, Oil Pipe, Boiler Pipe, Hydraulic Pipe

    Section Shape: Round

    Surface Treatment: Oiled

    Usage: Special Purpose, Oil&Gas Well Drilling, Machinery Industry, Thermal Equipment

    Technique: Cold Drawn

    Material: Carbon Steel

Additional Info

    Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap

    Productivity: 1000 Tons Per Month

    Brand: YUHONG

    Transportation: Ocean,Land,Air

    Place of Origin: CHINA

    Certificate: TUV, API, PED, ISO, BV, SGS, GL, DNV

Product Description

DIN2391 Precision Cold Drawn Seamless Pipes and Tubes, Gr St35 St45 St52 St37.4, Cold Finished Seamless Pipe use for Hydraulic and Pneumatic.

Delivery Status: NBK (+N) BKW (+LC) GBK (+A) BKS (+SR) BK (+C) OD x WT = 4~120 x 0.5~15mm

DIN2391 St52.4+N Phosphated Hydraulic Tube


Description:
Precision steel tube
Grade:
St 30 Si / St 30 Al
/ St 35 / St37 / St37.4 / St45 / St 52 / St52.4
/ E215 / E235 / E355
Precision in size,Bright for the surface, high ability of mechanical performance
Standard: DIN 2391, EN10305-1, EN10305-4, BS 6323, ISO 8535
DIN2391 Precision steel pipe
STEEL GRADE: ST30Si, ST30Al, ST35, ST37, ST37.4, ST45, ST52, ST52.4, etc
Size:(mm)
Out Dimensions: 6 mm ~ 350 mm
Wall Thickness: 0.8 mm ~30mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)


Hydraulic Precision Cold Draw Seamless Tube DIN2391 ST52.4 and St37.4


Final supply conditions:
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.


Chemical Composition:

Steel grade


Chemical composition,
as a percentage by mass


Symbol


Material
number


C max.

Si max.

Mn


P
max.



S
max.


St 30 Si

1.0211

0.10

0.30

<=0.55

0.025

0.025

St 30 Al

1.0212

0.10

0.05

<=0.55

0.025

0.025

St 35

1.0308

0.17

0.35

<=0.40

0.025

0.025

St 45

1.0408

0.21

0.35

<=0.40

0.025

0.025

St 52

1.0580

0.22

0.55

<=1.60

0.025

0.025


The following alloying elements may be added:
Nb: <=0,03%; Ti: <=0,03%; V: <=0,05%; Nb + Ti + V: <=0,05%.


Steel grade Chemical Composition(%):
Steel name Steel number C max Si max Mn P max S max Al min
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025 -
E355 1.0580 0.22 0.55 1.60 0.025 0.025 -


Looking for ideal DIN2391 ST52.4 NBK Precision Seamless Tubes Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the DIN2391 St52.4 N Phosphated Hydraulic Tube are quality guaranteed. We are China Origin Factory of Hydraulic Cold Drawn Tube DIN2391. If you have any question, please feel free to contact us.

Product Categories : Boiler Tube > Carbon Steel Boiler Tube

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