Seamless steel tubes for heat exchange are fluids used for heating or cooling processes. For example, they are closed-circuit cooling solutions for electrical equipment using softened water to cool water in quenching tanks.


Heat exchanger tubes are used in all types of process industries. Characteristic requirements are: weld, fixed length and extensive testing. In order to meet the requirement of fast delivery, we have a strip standard and a special kind of steel with the most common thickness.
Standards and Grades: ASTM a179/ASME SA179
Delivery conditions: annealing, normalizing, normalizing and tempering.
The main tests were based on ASTM a213-09 and ASTM 1016.
1. High-pressure hydraulic test: at least 10 maps.
2. Eddy Current Testing and Ultrasound Testing
Three. Mechanical testing
4. OD and weight tolerance test.




Surface treatment:

Oil immersion, varnish, passivation, phosphating, shot peening