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Phone Number : 86-512-58715276
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High Accuracy Precision Seamless Steel Tubes , Straight Seam Hollow Metal Tube

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.
Delivery Condition +C,+LC,+SR,+N,+A Payment T/T; L/C
Sample Free Sample Material E235, E355
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precision seamless pipe


seamless steel tube

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Product Description

Precision Seamless Steel Tubes Delivery Condition BK Standard EN10305-1 Steel Round Pipe


What is precision seamless steel tubes?

Precision seamless steel tube is a high precision steel tube after cold rolling or cold drawing


Main Date

Standard EN10305-1
MaterialE E235, E355
Outer Diameter Range: 4-120mm
Wall Thickness Range: 0.5-15mm

Delivery Condition 

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


Other Delivery Condition aviliable:

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.

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

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



1. Smaller outer diameters;

2. High precision can be done in small batch production;

3. Cold drawing finished products with high precision and good surface quality.

4. The transverse area of the steel tube is more complicated;

5. Steel pipe performance is superior, metal is more dense.


Surface Treatment

Surface treatment


As customer's requirements.