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galvanized steel tubing Seamless Steel Tube 

Place of Origin: Jiangsu, China (Mainland) 
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Product Detail

Model No.: HC


 
St45 St37 E235 E355 Cold Drawn

 

St45 St37 E235 E355 Cold Drawn Steel Tube High Pressure for BMW / Fiat / Honda

 

 

Quick Detail:

 

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

 

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

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 Mr. Charlie Zhu

Tel: 86-25-58439035
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Company Info

Huacheng Industry Pipe Making Corporation. [China (Mainland)]


Business Type:Manufacturer
City: Nanjing
Province/State: Jiangsu
Country/Region: China (Mainland)

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