ASTM A214 SA214 ERW Carbon Steel Heat-Exchanger Tubes Condenser Pipes

ASTM A214 SA214 ERW Carbon Steel Heat-Exchanger Tubes Condenser Pipes

            
Size range: O.D.:6-76.mm     W.T.:0.9-19.0mm      L: according to customer requirement           

Manufacture:

Tubes are made by electric-resistance welding.

Steel Grade and Chemical Compositions:

Hardness Requirements:

The tubes shall have a hardness number not exceeding 72HRB.

Surface Condition:

The finished tubes are free of scale., slight amount of oxidation is not considered as scale

Heat treatment:

After welding, all tubes are heat treated at a temperature of 1200℉(650℃) or higher and following by cooling in air or in a cooling chamber of a controlled atmosphere furnace.

Cold drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200℉(650℃) or higher

Test and Inspection:

Hardness Requirement

Mechanical Test

 - Flattening Test

 - Flange Test

 - Reverse Test

 - Hydrostatic or Nondestructive Electric Test

Applications: for Heat-Exchangers, Condensers  and similar heat-transfer apparatus.