Stainless pipe fitting,stainless fitting,duplex stainless,31803,32750,32760,we are one of largest sour service stainless fitting supplier according to ISO 10156.
Addressing quality issues is the top priority of a manufacturer, and ensuring the production quality of products is the foundation of every manufacturer. Therefore, Hebei Haihao Group attaches great importance to product quality inspection. The inspection of this batch of Nigerian stainless steel forgings includes appearance quality inspection and internal quality inspection.
Appearance quality inspection mainly refers to the inspection of the geometric size, shape, surface condition and other items of the forging. That is, to check whether the shape and geometric dimensions of the forgings meet the requirements of the drawing, whether the surface of the forgings is defective, what kind of defects they are, and what their morphological characteristics are. As shown in Figures 1 and 2, the size, appearance and other surfaces are good and meet the requirements.
Internal quality inspection mainly refers to the inspection of chemical composition, macrostructure, microstructure and mechanical properties of forgings. As shown in Figure 3, the chemical composition of stainless steel forgings is a quality condition that cannot be found by visual quality inspection. It involves not only checking for internal defects in forgings, but also checking the mechanical properties of forgings. For important parts, key parts or large forgings, chemical composition analysis should also be carried out.
C&N HongCheng Group attaches great importance to product quality inspection, including strict systems for the quality inspection process of forgings, to ensure the quality of products provided to customers.