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Home > Products > Boiler Tube > Carbon Steel Boiler Tube > 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
Transportation:
Ocean,Land,Air
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  • Product Description
Overview
Product Attributes

Model No.Carbon Steel Tubes

BrandYUHONG

TypeSeamless

CertificationUL

ApplicationHydraulic Pipe

Section ShapeRound

Surface TreatmentOiled

UsageThermal Equipment

TechniqueCold Drawn

MaterialCarbon Steel

Supply Ability & Additional Informations

PackagingPly-wooden Case /Iron Case/ Bundle with plastic Cap

Productivity1000 Tons Per Month

TransportationOcean,Land,Air

Place of OriginCHINA

CertificateTUV, API, PED, ISO, BV, SGS, GL, DNV

Payment TypeL/C,T/T,Money Gram,Western Union

IncotermFOB,CFR,CIF

Delivery Time25 Days

Packaging & Delivery
Selling Units:
Ton
Package Type:
Ply-wooden Case /Iron Case/ Bundle with plastic Cap

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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