The mechanical properties test methods are mainly divided into two categories: tensile test and hardness test. The tensile test is to make a sample of carbon steel tube, break the sample on a tensile testing machine, and then measure one or several mechanical properties, usually tensile strength, yield strength, elongation after fracture and area shrinkage. Tensile test is the…
Read MoreWelded steel tube weld pores not only affect the tightness of the pipeline weld and cause pipeline leakage, but also become the induction point of corrosion, which seriously reduces the strength and toughness of the weld. The factors that cause porosity in the weld are: moisture, dirt, oxide scale and iron filings in the flux, welding components and covering…
Read MoreNowadays, the surface of the welded tubes we use are required to be coated for corrosion protection. The common anticorrosion coatings for welded tubes are petroleum asphalt, epoxy coal tar asphalt, PE sheath and PE foam sheath, epoxy powder, coal tar enamel and three-layer composite structure. The more used pipe anti-corrosion methods are 3PE composite structure and single-layer powder…
Read MoreIn order to ensure that “tube pulling” and “tube stacking” do not occur in the forming section, welding section and sizing section, according to the rolling principle of high-frequency straight seam welded pipe (ERW), it is necessary to ensure that the welded tube blank maintains proper tension in each section. In addition to the pass speed and rolling force,…
Read MoreYear: 2018 Country:Mexico Quantity: 120MT Product: welded tube Project: Heat changer construction in Mexico Standard and Specification: ASTM A178
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
