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ASTM A178 Carbon Welded Steel Tubes

ASTM A178 Carbon Welded Steel Tubes

Usage of ASTM A178 carbon welded steel tubes Used in boiler, superheater, heat-exchanger and pressure equipment in Petrochemical factory, Refinery factory, sugar mill, power plant, power plant, shipbuilding. Heat treatment of ASTM A178 carbon welded steel tubes After welding,all tubes shall be...

Description

Usage of ASTM A178 carbon welded steel tubes

Used in boiler, superheater, heat-exchanger and pressure equipment in Petrochemical factory, Refinery factory, sugar mill, power plant, power plant, shipbuilding.


Heat treatment of ASTM A178 carbon welded steel tubes

 After welding,all tubes shall be heat treated at a temperature of 1650°F(900℃) or higher and followed by cooling in air or in the 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°F(650℃)or higher.


Surface Condition of ASTM A178 carbon welded steel tubes

Finished tubes shall be free of scale,A slight amount of oxidation will not be considered as scale.


Tests of ASTM A178 carbon welded steel tubes

Flattenting Test/Flaring test/Flange test/Crush test/Tension test/Reverse Flattening test/Hydrostatic or Nondestructive Electric Test


Hydrostatic or Nondestructive Electric Test of ASTM A178 carbon welded steel tubes

Hydrostatic or Nondestructive Electric Test—Each tube shall be subjected to either the hydrostatic or the nondestructive electric test. The purchaser may specify which test is to be used. 12. Forming O


Product show of ASTM A178 carbon welded steel tubes

1781




  







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