Home ProductsSeamless Steel Tube

DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

Good quality DOM Steel Tube for sales
Good quality DOM Steel Tube for sales
Dear Richard, thks for your continous support to our company, we have faith in your company's product and services

—— Cassy

you always commit and manage to meet our very tight tolerence requirement,furthermore Torich International never fail our delivery.

—— Cassy

This is what we are looking for, a reliable and responsible supplier.

—— Cassy

I'm Online Chat Now

DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

China DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes supplier
DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes supplier DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes supplier DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes supplier DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes supplier

Large Image :  DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

Product Details:

Place of Origin: China
Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 CCS PED
Model Number: DIN 2391

Payment & Shipping Terms:

Minimum Order Quantity: 5 Ton
Price: negotiable
Packaging Details: Packing in wooden, hexagonal box or other seaworthy ways
Delivery Time: 30 days
Payment Terms: T/T L/C D/P D/A WesternUnion MoneyGram Others
Supply Ability: 60000 Ton/Year
Contact Now
Detailed Product Description
Material: Carbon Steel Steel Grade: ST 35 ST 45 ST 52
Standard: DIN 2391 Shape: Round
Applications: For Auto Industry / For Machinery Use / Oil Cylinder Tube / Motorcycle Shock Absorber Production Method: Seamless Cold Drawn/Rolling
Size Range: O.D.:6-350mm W.T.:1-50mm L:max12000mm Delivery Condition: BKW BKS GBK NBK

DIN2391 St35.0 St37.0 St44.0 St45St52.0 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

 

Standard: DIN2391 Seamless Cold Drawn/Rolling Steel Tubes


Applications: for Auto industry / for machinery use / Oil Cylinder Tube / Motorcycle shock absorber

     
Auto shock absorber inner cylinder / Telescopic Cylinders            

                            
Size range: O.D.:6-350mm     W.T.:1-50mm      L:max12000mm     

 

Materials:

The tubes are manufactured from electric steel or basic oxygen stel, the melting and casting processes being at the discretion of the manufacturer.

The steel is cast as killed steel             

 

Apperance:

Tubes have a smooth internal and external surface with the cold working process

 

Tube ends:

Square cut, no burrs                   

Steel Grade and Chemical Compositions:

Steel Grade C Si Mn P S  
max max   max max  
ST35 0.17  0.35 ≥0.40 0.025 0.025  
ST45 0.21 0.35 ≥0.40 0.025 0.025  
ST52 0.22 0.35 ≥1.60 0.025 0.025  

 

Mechanical properties at room temperature
Steel Grade Minimum values for the delivery condition
BKW BKS GBK (+N)  NBK
ST35 480 6 420 10 420 315 14 340-470 235 25
ST45 580 5 520 8 520 375 12 440-570 235 21
ST52 640 4 580 7 580 420 10 490-630 355 22


Note: Special steel grade is also available, according to customer request.
 

 

Final Supply Condition:

BK - Cold finish (hard)      

Tubes do not undergo heat treatment following the final cold forming and, thus

have a rather high resistance to deformation

 

BKW - Cold finished(soft)  

The final heat treatment is followed by cold drawing involving limited deformation.

Appropriate further processing allow a certain degree of cold forming (bending, 

expanding)

 

BKS - Cold finished and stress-relieved

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.

 

GKB - Annealed

The last cold forming process is followed by annealing in a controlled atmosphere.

 

NBK - Normalized

The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

 

 

Testing:

1. dimensional chec

2. surface inspection

3. tensile test as DIN EN10002 Part 1

4. flattening test, as DIN EN10233

5. drift expanding test as DIN EN10234

 

 

Seamless Precision Cold Drawn Steel Tubes  pricechina  Seamless Precision Cold Drawn Steel Tubes  for sale

 

buy  Seamless Precision Cold Drawn Steel Tubes  manufacturercheap Seamless Precision Cold Drawn Steel Tubes  suppliers

DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes  DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

 

DIN2391-1 standard does not cover the following standard:

-seamless circular unalloyed steel tubes subject to special requirements ( DIN1629)

-high performance seamless circular unalloyed steel tubes (DIN1630)

-seamless circular steel tubes for structural steel work (DIN17121)

-seamless circular fine grain steel tubes for structural steelwork  (DIN17124)

-seamless circular tubes made from steel with low-temperature toughness (DIN17173)

-seamless tubes made from steel with elevated temperature properties (DIN17175)

-seamless circular fine grain steel tubes subject to special requirements (DIN17179)

-seamless circular austenitic stainless steel tubes subject to special requirements (DIN17458)

-steel pipes for conveying combustible liquids and gases (DIN17171)

 

Contact Details
TORICH INTERNATIONAL CO.,LTD

Contact Person: Richard

Send your inquiry directly to us (0 / 3000)