USE:
A179 : Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

Weight Count:
Weight(Kg/M)=(OD-WT)*WT*0.02466
OD:Outside Diameter
WT:Wall-Thickness

A179 Seamless Boiler Tube Delivery Condition :
As different requirements,It including pickling,etc.

Packing:
1.Standard Packing
2.Woodbox Packing

Other Test:
1.Hydrostatic or Nondestructive Electric Test
2.Heat Treatment:Min temperature 650.
3.Surface Condition:Free of scale,A slight amount of oxidation will not be considered as scale.
4.Flattening Test,Flaring Test.Flange Test,Hardness Test,Hydrostatic Test

More information according the standard:
A179 Seamless Low Carbon Heat-Exchanger Tube and Condenser Tubes