CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

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Home ProductsCarbon Steel Seamless Pipe

Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm

Good quality Seamless Boiler Tubes for sales
Good quality Seamless Boiler Tubes for sales
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Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm

China Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm supplier

Large Image :  Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm

Product Details:

Place of Origin: JIANGSU, CHINA
Brand Name: CHANGZHOU RUIYUAN
Certification: ISO9001, ISO14001, PED

Payment & Shipping Terms:

Minimum Order Quantity: 0.3 MT
Packaging Details: Ends caps, Hexagonal Bundles with steel strips and plastic bags wrapping outside/Wooden box/Steel frame/Or as per client’s requirement.
Delivery Time: 20~30 days after order
Payment Terms: T/T, L/C, D/P, CASH, D/A, Western Union
Supply Ability: 6000MT/Month
Detailed Product Description
STANDARD: BS SHAPE: CIRCULAR
CERTIFICATE: PED, ISO9001, ISO14001 PLACE OF ORIGIN: JIANGSU, CHINA
SECONDARY OR NOT: BRAND NEW SURFACE: BARE, OIL, VARNISH, BLACK
APPLICATION: HYDRAULIC, AUTOMOTIVE

Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm

 

 

Specifications:

 

Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling

Ends: BE/PE, ends caps

Marking: as per requirement

Size:(mm)  OD: 6~350mm      WT: 0.8~35mm

As per standard or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length

Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement

 

 

CHEMICAL COMPOSITION (%):

 

Steel grade

Chemical composition (%)

Steel grade

Material number

C≤

Si≤

Mn≤

P≤

S≤

St 30 Si

1.0211

0.1

0.3

0.55

0.025

0.025

St 30 Al

1.0212

0.1

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

1.0508

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%.

 

 

MECHNICAL PROPERTIES (Minimum Values) :

 

Steel Grade

BK

BKW

GBK

NBK

 

Tensile StrengthN/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

 
 

 

DELIVERY CONDITION:

 

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.

 

 

INSPECTION AND TEST:

 

CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening, hardness, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.

 

 

Description:

 

BS 6323-4 PRECISION MECHANICAL STEEL TUBING FOR HYDRAULIC

Precision Steel Tube 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,12m,16m) or normal length or as per customer’s requirement   

Top quality products

 

 

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)

 

 

Competitive Advantage:

 

Always put quality on first consideration makes us keep our qulity stable and good. Always put customer’s benefit before ours makes our good service and gain us good reputation.

Advanced equipments. Sincere , truth and careful attitude on communication and production.

Contact Details
CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

Contact Person: Ms. Brenda

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