OEM/ODM Supplier Seamless Sch 40 - Cold-drawn or cold-rolled precision seamless steel tubes – Xuansheng Detail:
Cold-drawn or cold-rolled precision seamless steel tubes
| Product material | 10# 20# 30# 45# Q345B |
| Product specification | |
| Product applied standard | GB/T3639-2009 |
| Delivery status | |
| Finished products package | Steel belt hexagonal package/plastic film/woven bag/sling package |
Product Manufacturing Process
![]()
Tube blank

Inspection (spectral detection, surface inspection, and dimensional inspection)
![]()
Sawing
![]()
Perforation
![]()
Thermal inspection
![]()
Pickling
![]()
Grinding inspection
![]()
Lubrication
![]()
Cold drawing
![]()
Lubrication
![]()
Cold-drawing (the addition of cycled processes such as heat treatment, pickling and cold drawing should be subject to the specific specifications)

Cold drawing/hard +C or cold drawing/soft +LC or cold drawing and stress relieved +SR or annealing +A or normalization +N (selected according to customer’s needs)
![]()
Performance test (mechanical property, impact property, flattening, and flaring)

Straightening
![]()
Tube cutting
![]()
Non-destructive testing
![]()
Hydrostatic test
![]()
Product inspection

Immersion of anti-corrosive oil
![]()
Packaging

Warehousing
Product Manufacturing Equipment
Shearing machine/sawing machine, walking beam furnace, perforator, high-precision cold-drawing machine, heat-treated furnace, and straightening machine
Product Testing Equipment
Outside micrometer, tube micrometer, dial bore gage, vernier caliper, chemical composition detector, spectral detector, tensile testing machine, Rockwell hardness tester, impact testing machine, eddy current flaw detector, ultrasonic flaw detector, and hydrostatic testing machine
Product Applications
Chemical equipment, ships, pipelines, automotive parts, and mechanical design applications
Seamless Tubing
By definition seamless tubes are completely homogenous tubes, the properties of which give seamless tubing more strength, superior corrosion resistance, and the ability to withstand higher pressure than welded tubes. This makes them more suitable in critical applications in harsh environments, but it comes with a price.
Product detail pictures:

Related Product Guide:
"Quality initially, Honesty as base, Sincere company and mutual profit" is our idea, in order to create repeatedly and pursue the excellence for OEM/ODM Supplier Seamless Sch 40 - Cold-drawn or cold-rolled precision seamless steel tubes – Xuansheng, The product will supply to all over the world, such as: Tajikistan, Borussia Dortmund, Canada, Please feel cost-free to send us your specifications and we'll respond to you asap. We've got a professional engineering team to serve for the every single detailed needs. Free samples may be sent for you personally to know far more facts. So that you can meet your desires, please really feel cost-free to contact us. You could send us emails and call us straight. Additionally, we welcome visits to our factory from all over the world for much better recognizing of our corporation. nd merchandise. In our trade with merchants of several countries, we often adhere to the principle of equality and mutual advantage. It is our hope to market, by joint efforts, both trade and friendship to our mutual benefit. We look forward to getting your inquiries.
We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!




