• Jiangsu Hongbao Group Co., Ltd.
    A good collaboration!
  • Jiangsu Hongbao Group Co., Ltd.
    It could provide professional solutions for application of titanium tubes, reliable partner.
Contact Person : Angela
Phone Number : 86-512-58715276
Whatsapp : +8615895686919

Professional Precision Seamless Steel Tubes 15mm Wall Thickness For Inner Cylinder

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
Certificate TS16949,DNV,PED,ISO Shape Round
High Light

precision seamless pipe


seamless steel tube

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Product Description

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


Delivery Condition 

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


Other Delivery Conditions 

+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.
+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.


Main Date

Material: E235, E355

OD: 4-120mm

WT: 0.5-15mm

Standard: EN10305-1

Preocess: Cold rolling, Cold drawn.