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E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

China E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube supplier
E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube supplier E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube supplier

Large Image :  E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Product Details:

Place of Origin: Jiangsu China (Mainland)
Brand Name: JIANGSU HUACHENG
Certification: ISO9001 14001 BV TUV PED DNV etc
Model Number: HC

Payment & Shipping Terms:

Minimum Order Quantity: 5MT
Packaging Details: Exporting package/wooden box package/Or per customers’ requirement
Delivery Time: 25~35days
Payment Terms: 30%T/T in advance or 100% L/C at sight
Supply Ability: 8000MT/Month
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Detailed Product Description
Application: Machinery|Automobile|Oil Cylinder Tube|Military|Railway Industry Certificate: PED|ISO|BV|TUV
Delivery Condition: Annealed|Normalized|Heat Treatment|BK|BKS|BKW|NBK|GBK Grade: St45|St52|St 35|St37|E215|E235|E355
Product Name: Galvanized Steel Tube Section Shape: Round
Standard: EN 10305-4|EN 10305-1|DIN 2391|ASTM B633-07 Surface Treatment: Galvanized
Technique: Seamless|Cold Drawn

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

 

 

Quick Detail:

 

Standard: EN 10305-4 / EN 10305-1 / DIN 2391 /

Material Grade: E235
Size:(mm)
Out Dimensions: 6mm – 350mm
Wall Thickness: 0.8mm - 30mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)

 

 

Description:

 

Dimensions of the galvanized tubes for hydraulic and pneumatic lines:

 

Outside diameter ranges from 6 to 350 mm and the wall thickness ranges from 0.8 to 30 mm. Precision steel tubes are delivered according to EN 10305-4, DIN 2391-1, STN 42 6711 and 42 6712, ČSN 42 6711 and 42 6712.

 

Synopsis of Process Routing:

DIN highly accurate cold drawn bright seamless steel tube is used as the tube to be galvanized, the outer wall is electroplated, caps are covered at two ends of tube to prevent from the dust.

Main Features:

Different color of zinc such as white, yellow, army-green, black is evenly distributed in the surface of the tube, good brightness and antirust and antisepsis could improve after zinc coated.
 

 

Length of the galvanized tubes:

in diameter <= 16 mm  >=6000 + 100 mm
in diameter >= 16 mm  <=24000 + 50 mm

 

 

Tolerances of the zinc coated tubes:

 

- tolerances of the outside diameter:

diameter between 4 - 30 mm

±0,08 mm

diameter between 35 - 38 mm

±0,15 mm

diameter above 42 mm

±0,20 mm

 
  • tolerances of the inside diameter are according to EN 10305-4
    - tolerance of the wall thickness ± 10%

 

The Main Steel grades for the zinc coated tubes:

 

E 235+N and E 355+N

St 30 Si / St 30 Al / St 35 / St37.4 / St45 / St 52 / St52.4 / E235, E255,E355

 

EN 10305-1/ EN 10305-4 / DIN 2391

Precision seamless tube and pipe with European&Germany standard

Application:

for Atuo;for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder.

Size(mm):

O.D.:6mm-350mm ; W.T.:1-30mm; L:max 24000

 

 

Grade and Chemical Composition(%):

 

Grade
 

Chemical Composition(%):

C max

Si max

Mn

P max

S max

E235

0.17

0.35

1.2

0.025

0.025

E215

0.10

0.05

0.70

0.025

0.025

E355

0.22

0.55

1.6

0.025

0.025

 

Mechanical Properties (Mpa):

 

Grade

Yield strengtha Rehmin Mpa

Tensile strengtha Rmmin Mpa

Elongation A min %

E215

215

290-430

30

E235

235

340-480

25

E355

355

490-630

22

 

 

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.

 

 

Galvanized tube category and related standard:

 

Galvanized tube category and related standard

Galvanized tube category

Related Standard

Zinc coating thickness

Salt spray test 

Gr3+ Galvanized tube with blue and white zinc

ASTM B633-07
(Type III,SC 1/2/3/4)

5-25um

24--72 hours without white rust;48--168 hours without red rust

Gr3+ Galvanized tube with color zinc

ASTM B633-07
(Type II,SC 1/2/3/4)

5-25um

48--96 hours without white rust;48--240 hours without red rust

Gr6+ Galvanized tube with color zinc

ASTM B633-98
(Type II,SC 1/2/3/4)

5-25um

24--96 hours without white rust;48--124 hours without red rust

 

 

Applications:

 

Zinc coated precision steel tubes (galvanized tubes) are destined for hydraulic and pneumatic pressure distribution (so called HPL tubes), production of automobile components, utility vehicles as well as for production of machine products such as fittings and joints. Cold drawn precision tubes are used as the semi-finished product and they are made from rolled seamless tubes. Precision tubes HPL types are made from carbon and alloyed steel.


Application areas:

 

Automotive, military, railway industry, with high requirement of the tubes brightness, cleanness, antirust, and antisepsis.

 

 

Competitive Advantage:

 

Huacheng Industry Pipe Making Corporation

Asia Leading Steel Pipe & Tube Manufacturer with more than 250,000Tons/Year, >60% shipped to more than 35 Countries.We aims at manufacturing quality pipes & tubes with reasonable and competitive price, good quality for our global customers.

 

Factroy Pictures:

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

 

Pipe & Tube Processing

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Factory Equipments:

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

 

Production Line:

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Quality Control:

 

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

 

Steel Pipe & Tube Application:

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Package:

Export Standard / Wooden Box

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Main Certificates:

PED ISO BV TUV etc.

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

Main Customers:

 

E235 EN 10305-4 EN 10305-1 Galvanized Steel Tubing , Auto Cold Drawn Steel Tube

 

Contact Details
Jiangsu Huacheng Industry Pipe Making Corporation

Contact Person: Mr.Charlie Zhu

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