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WUXI SYLAITH SPECIAL STEEL CO.,LTD
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Round Precision Steel Tube EN10305-1 EN10305-4 DIN 2391 St30Si Annealed Steel Tube

WUXI SYLAITH SPECIAL STEEL CO.,LTD
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Round Precision Steel Tube EN10305-1 EN10305-4 DIN 2391 St30Si Annealed Steel Tube

Place of Origin : Jiangsu China (Mainland)

Brand Name : WUXI SYLAITH

Certification : ISO

MOQ : 1 MT

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

Price : negotiable

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

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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


Product Application

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

Packing & Delivery

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































































































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