Description
Dimenslon Test
The dimension test is conducted for each piece strictly as per the related standards and drawings, including the laying length, the dimension of the joints, and the wall thickness.
Mechanlcal Property Test
The test bar of each furnace is testde for its mechanical properties, including the tensile strength, elongation after fracture, and hardness.
Chemlcal Test
The chemical composition is analyzed, including C, Si, Mn, P, S and Mg.
Raw Materlals
The incoming materials of each batch are detailed inspected for the chemical composition and other analysis needed.
Hydro Test
The hydrostatic test is conducted for each piece as per related standards.
Test of Coating Thickness
For the fittings with cement lining and rich Zinc+bitumen coating, coating thickness is checked on the cement lining and bitumen coating as well as the amount of the rich Zinc coating applying upon each unit.