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Cold Bending Deformation Precision Seamless Pipe No Leakage Under High Pressure

Place of Origin China
Brand Name Hongbao
Certification TS16949, ISO9001, OHSAS18001 etc.
Model Number HBPST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details Seaworthy Wooden box, customized Packing
Delivery Time 30 Days
Supply Ability 60000 MT per Year

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Product Details
Shape Round Application Automotive Part, Hydraulic System, High-precsion Machining. Etc.
Payment T/T; L/C Sample Free Sample
Standard EN10305-1 Port Shanghai Port
High Light

precision seamless pipe


seamless round tubes

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Product Description

+SR Delivery Condition Precision Seamless Stee Standard EN10305-1 Steel Round Pipe



Precision seamless steel pipe is a kind of high precision steel pipe after cold rolling or cold drawing. Full name: cold rolling precision seamless steel tube. Because of the precision seamless steel tube inside and outside wall has no oxide layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made with seamless tube.


Delivery Condition 

+SR: After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.


Other Delivery Conditions 

+N: After the final cold drawing operation the tubes are normalized in a controlled atmosphere.

+A: After the final cold drawing process the tubes are annealed in a controlled atmosphere.

+C: No heat treatment after the final cold drawig process.

+LC: After the final heat treatment there is a suitable drawing pass.


Manufacturing Process

Round steel→ perforation→ pickling→ cold rolling→ sawing head→ baling.

Seamless tube→ acid wash→ cold rolling→ sawing head→ baling.


Main Date

Standard EN10305-1; DIN2391; DIN2445
Material E235, E355, St37.4, St52.4
Outer Diameter Range: 4-120mm
Wall Thickness Range: 0.5-15mm