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Shanghai Seamless Steel Pipe CO., LTD

[Province: Shanghai ]

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ST52 , ST52.4 Carbon Steel Hydraulic Fuel Line Tubing , Cold Drawn Seamless Steel Tube

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ST52 , ST52.4 Carbon Steel Hydraulic Fuel Line Tubing , Cold Drawn Seamless Steel Tube

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ST52 , ST52.4 Carbon Steel Hydraulic Fuel Line Tubing , Cold Drawn Seamless Steel Tube

Quick Detail:

1.Precision seamless tubes for automotive industry are made using the cold drawing process. Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.

2. The tubes are high precision in tolerance,excellent surface brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.

3. No deformation after cold bending,no crack after flaring and flattening.

4.Stable work pressure for hydraulic system.

Description:

Synopsis of Process Routing: Cold drawn and bright NBK seamless steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micro pore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.

Main Features: color of steel tube: bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.

No crack will occur after flaring and flattening for the industry, which the bending and forming is required in process.

Without oxidization, crack, fold, rolling fold, scar and laminar defect on the surface. The depth of defects (e.g. scratch mark, bulge and concavity) is not allowed to exceed 0.025mm (such requirement is stricter than DIN2391 standard).

Applications:

Used in hydraulic system, including automotive Hydraulic power steering system, the clutch system, braking system, engine high pressure oil pipe, excavator hydraulic oil pipe,nested card connector (pipe joints) with matching.

Specifications:

Size:OD4mm-60mm,TH0.5mm-7mm

Standard:DIN2391,EN10305/4,DIN1630

Material: ST35,ST37.4,ST37,ST45,ST52,ST52.4, E215,E235,E355

Delivery State:NBK+Black phosphate.

Tolerance Table Of Steel Tube

NAME

SCOPE(mm)

GB (mm)

DIN (mm)

Enterprise control(mm)

Special high-precision(mm)