DIN2391 Cold drawn Seamless Steel pipe and tube

DIN 2391 is the standard specification for seamless precision steel tubes. These steel tubes are mainly used in mechanical and automotive engineering, such as hydraulic and pneumatic power systems, injection molding machines and precision machinery.DIN 2391 cold drawn seamless steel tubes are high quality tubes that are widely used in various mechanical and automotive engineering applications. Known for their excellent dimensional accuracy, smooth surface finish and high mechanical properties, they are a reliable and effective choice for precision applications.
 

Material		10#,20#,35#,45#;16Mn;20Cr,40Cr;15CrMo,30CrMo,35CrMo,42CrMo;A106B,St37,St42,ASTM 4140 etc.
Technique		Cold Rolled/Cold Drawn/Hot Rolled
Wall Thickness		1-25mm
Out Diameter		10-325mm
Application		Structure pipe; High and low pressure boiler tube; Liquid delivery; Seamless steel pipe for petroleum cracking ,Oil pipe,Gas pipe
Payment		TT/LC
Surface		Customer's Requirement
MOQ		1 ton for normal material

Cold Drawn Seamless Mechanical Tubing

Rolling hard roll can be used as the raw material of the hot-dip galvanizing plant, hot dip galvanizing line set annealing line. Rolling hard roll weight is generally 6 to 13.5 tons, the coil diameter of 610mm.
 

Condition on delivery

Term	Symbol	Explanation
Cold-finished/hard (cold-finished as-drawn)	BK	No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked)	BKW	After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed	GBK	After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized	NBK	The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

 

1.Q: Are you a factory or trading company?
A: We are professional manufacturer, and our company also is a very professional a trade company for steel products.We can provide a wide range of steel products. 

2.Q:What do your factory do regarding quality control?
A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

3.Q: Can I get samples before order ?
A: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

4.Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them.No matter where they come from.

5.Q:what is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.