ASTM A178 Supper Carbon Steel Heat Exchanger Tubes , Electric Resistance Welding Pipe

ASTM A178 Electric resistance welded carbon steel and carbon manganese steel boiler and superheater tubes

Applications: for Boilers,Superheaters, Heat-Exchangers, Condensers, Boiler flues, superheater flues and e ends

Material:  Carbon Steel and carbon manganese steel

Production: Electric Resistance Welding

              
Size range: O.D.:6-127mm     W.T.:0.9-9.1mm      L: according to customer requirement         

Heat treatment:

After welding, all tubes are heat treated at a temperature of 1650℉ (900℃) or higher and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace.

Cold-Drawn tubes are heat treated after the final cold-draw pass at a temperature of 1200℉(650℃)or higher.

Tests and Inspection:

Tensile Test

Crush Test

Mechanical Test

 - Flattening Test

 - Flange Test

Reference Documents:

ASTM A450/A450M     Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Ally Steel Tubes

E213    Practice for Ultrasonic Examination of Metal Pipe and Tubing

E273    Practice for Ultrasonic Examination of Longitudinal Welded Pipe and Tubing