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Round Precision Steel Tube EN10305-1 EN10305-4 DIN 2391 St30Si Annealed Steel Tube

Basic Information
Place of Origin: Jiangsu China (Mainland)
Brand Name: WUXI SYLAITH
Certification: ISO
Minimum Order Quantity: 1 MT
Price: negotiable
Packaging Details: Exporting package/wooden box package/Or per customers’ requirement
Delivery Time: 3~15days
Payment Terms: 30%T/T in advance or 100% L/C at sight
Supply Ability: 8000MT/Month
Detail Information
Features: Thick Wall|Thin Wall Certificate: PED|ISO|BV|TUV
Delivery Condition: Annealed|Normalized|Heat Treatment|BK|BKS|BKW|NBK|GBK Product Name: Precision Steel Tube
Section Shape: Round Standard: EN10305-1|EN10305-4|BS 6323|DIN 2391|ISO 8535
Surface Treatment: Galvanized
High Light:

Galvanized Steel Tube

,

Mechanical Steel Tube


Product Description

 
 Round Precision Steel Tube EN10305-1 EN10305-4 DIN 2391 St30Si Annealed Steel Tube
 
 
Quick Detail:
 
Standard: DIN 2391  EN10305-1, EN10305-4, BS 6323,  ISO 8535
Grade: St 30 Si / St 30 Al / St 35 / St37 / St37.4 / St45 / St 52 / St52.4 / E215 / E235 / E355
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)   
 
 
Description:
 
Precision steel tube 
Precision in size,Bright for the surface, high ability of mechanical performance  
 
Standard: DIN 2391, EN10305-1, EN10305-4, BS 6323,  ISO 8535
STEEL GRADE: ST30Si, ST30Al, ST35, ST37, ST37.4, ST45, ST52, ST52.4, etc
  
 
SURFACE TREATMENTS
 
1. Bare Tube (No coating): Bright and smooth, Surface Roughness both inner and outer surface 
0.2Ra Maximum for special requirement
2. Surface Coating
 A. Silver galvanized
 B. Yellow galvanized
 C. Olive green coated
Layer thickness: 8-20um, Salty Spray Test: 48-150 hours
3.  Black phosphate
 
 
APPLICATIONS
 
1. Automotive fields
 A. Fuel injection lines/nozzles
 B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar
C. Drive transmission: Steering column elements
 D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
2. Hydraulic Fields
A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension 
B. Hydraulic cylinders (HPZ)
 
 
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

 
Product Photo
 
Round Precision Steel Tube EN10305-1 EN10305-4 DIN 2391 St30Si Annealed Steel Tube 0

 
Product Application
 
Diameter 3/8"-100" ASTM SUS201 304 Welded Mirror Polished Surface Decoration Stainless Steel Pipe 1
 
Packing & Delivery
 
Diameter 3/8"-100" ASTM SUS201 304 Welded Mirror Polished Surface Decoration Stainless Steel Pipe 2
Diameter 3/8"-100" ASTM SUS201 304 Welded Mirror Polished Surface Decoration Stainless Steel Pipe 3
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