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DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed

Basic Information
Place of Origin: Jiangsu China (Mainland)
Brand Name: Wuxi Sylaith
Certification: ISO9001 14001 BV TUV PED DNV etc
Model Number: DIN 2391 St 30 Si / St 30
Minimum Order Quantity: 1 MT
Price: Negotiable
Packaging Details: Standard Waterproof Package
Delivery Time: 3~10 days
Payment Terms: L/C, T/T
Supply Ability: 8000MT/Month
Detail Information
Application: Fluid Pipe Delivery Condition: Annealed|Normalized|Tempered|Heat Treatment|BK|BKS|BKW|NBK|GBK
Grade: T4|St45|St 35|St 52|St 30 Al Product Name: Seamless Steel Tubes
Section Shape: Round Standard: DIN 2391
Surface Treatment: Oil-dip|Varnish|Phosphating|Passivation|Shot Blasting Technique: Seamless
High Light:

Seamless Steel Fluid Pipe

,

6m Seamless Steel Tubes

,

Annealed Steel Tubes Fluid Pipe


Product Description

DIN 2391 St 30 Si / St 30 Al Thin Wall Seamless Steel Tubes Length 6m , 9m , 12 , 24m
 

ST30AL is mainly used for the production of seamless precision steel pipes and precision welded steel pipes.
 

StandardDIN 2391
GradeSt 30 Si / St 30 Al / St 35 / St45 / St 52
Out DimensionsOut Dimensions
Wall Thickness0.8 mm ~30mm
LengthFixed(6m,9m,12,24m) or normal length(5-12m)
Delivery Condition

Heat treatment,Annealed, Normalized, Normalized and Tempered

PackingBeveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and TestChemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic Test.
Surface treatment

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Painting as requested

 
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%.

 
Final supply conditions
 

Designation

Symbol

Description

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.

 
Condition on delivery
 

Steel Grade

BK

BKW

GBK

NBK

Code No.

Tensile
Strength
N/mm2 min

Elongation
at rupture N/mm2 min

Tensile
Strength
N/mm2 min

Elongation at rupture N/mm2 min

Tensile
Strength
N/mm2 min

Elongation at rupture N/mm2 min

Tensile
Strength
N/mm2 min

Elongation at rupture N/mm2 min

St30 Si

400

8

330

12

280

30

290-420

30

St30 Al

400

8

330

12

280

30

290-420

30

St 35

440

6

370

10

315

25

340-470

25

St 45

540

5

470

8

390

21

440-570

21

St 52

590

4

540

7

490

22

490-630

22

 
Other Terms
 
Scope:  This standard defines the technical delivery conditions for seamless precision steel tubes according to DIN 2391 Part 1 which are made from the steel grades listed in section. Tubes according to this standard are mainly used where accuracy to dimension and possibly, small wall thickness and good surface condition are required.
Shape: The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square,rectangular and special sections.
 
Product Photo
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 0
 
Factroy Pictures
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 1
 
Pipe & Tube Processing
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 2
 
Quality Control
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 3
 
Package
 Export Standard / Wooden Box
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 4
 
Main Certificates
 
DIN 2391 Thin Wall Seamless Steel Tubes Fluid Pipe Length 6m Annealed 5
 
FAQ
 

Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
 
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available
 
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
 
Q4. CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.
 
Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time).

 

Contact Details
Deasy

Phone Number : 86-13338118310

WhatsApp : +8613338118310