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DETRA Engineering supplies cold bended heat exchanger and boiler tubes in below technical ranges for power and oil and gas sectors.

Outside Diameter: Up to 6”

Radius: 1D-7D

Degree: Various degrees according to customer drawing

Material Grade: P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10, X10CrMoVNb9-1/2, X20CrMoV12-1, 309, 310, 321, 347H and special alloy grades.

Application Areas: Boiler Tubes, Heat Exchanger Tubes, Heater and Superheater Pipes

Cold bending is a type of bending method that makes the bending by mechanical force and without additional heating source. In this method, pipe or profile is bended at machine in required radius and degree.

Advantages and Disadvantages of cold bending comparing with hot bending:

-After cold bending process there is no need to wait for cooling of pipe and that makes cold bending quicker comparing with hot bending.

-Cold bending is less expensive due to its machines are cheaper.

-After bending process cold bending has cleaner surface comparing with hot bend.

-Cold bending method has limited technical range on outside diameter/wall thickness and bending radius.

-After cold bending process mechanical strengths can be increased but in the same time hardness values can increase above to acceptable values.

In summary up to 6” outside diameter and 7D bending radius, cold bending has lots of advantages comparing with hot bending method in various alloy grades.

You can get offer for your cold bending enquiries from us:



DETRA Mühendislik San. ve Tic. Ltd. Sti.
A: Icerenkoy Mah. Umut Sk. No:10-12 Quick Tower K:16 34752 Atasehir/Istanbul-Turkey
T: +90 216 687 03 19
F: +90 216 628 63 68

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