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Phone Number : 86-512-58715276
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Optional Cold Drawn Seamless Tube WT Range 0.5 - 12mm For Automotive Part

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
Material E235, E355 Standard EN10305-1
Port Shanghai Port Or As Customer's Requirements Trade Term FOB, CIF, EXW
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precision seamless pipe


seamless round tubes

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Product Description

EN10305-1 Precision Seamless Steel Tubes E235 E355 Steel Round Pipe For Automotive Part



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 

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

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

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

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

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


Main data

Material: E235, E355

OD Range: 4-120mm

WT Range: 0.5-12mm

Standard: EN10305-1

Process: Cold rolling or Cold drawing



NO. WeldingTypical Specification

Unit Speed


Working Time




Ratio of Total output
1 Φ34×6 18 1211 11200 56%
2 Φ28×5.2 20 1522
3 Φ38×4.5 28 883 5500 27.5%
4 Φ50.8×2.3 60 114 1130 5.6%
5 Φ55×3 50 190 2170 10.8%
Total     3920 20000 100%



Automotive Part