When purchasing stainless steel pipes, everyone should pay more attention to the quality of the product. Shenyang stainless steel pipe manufacturers generally adopt the method of estimation and observation, but this method is feasible for customers who select in small quantities. However, for customers who select in large quantities, the inspection method is time-consuming and laborious, and it is likely that it is not possible to accurately identify the quality. To address such difficulties, it is recommended to purchase a part of the product in large quantities for inspection, The following is how to do technical professional quality inspection methods.

1. The surface product quality inspection of stainless steel tube blanks is estimated under the integrated natural light source, with an estimated interval of 45 soil and 5 centimeters.

2. The surface product quality inspection of stainless steel pipes after polishing treatment shall be carried out in accordance with the standard specifications for surface quality inspection of stainless steel pipes after polishing treatment.

3. The organic chemical composition test of stainless steel plate is entrusted to an external testing agency for inspection.

4. Simple random sampling inspection of the surface quality of stainless steel pipes shall be carried out in accordance with quality inspection specifications.

5. For stainless steel pipes with different axes, use a micrometer to symmetrically and accurately measure three diameters of stainless steel pipes, with the difference between the low value and the small value being explained.

6. Accurate measurement of aperture specifications, inner diameter specifications, and specifications using a micrometer; Use R-gauge to accurately measure the circular arc position; The length specification is accurately measured with a tape measure. The thickness of stainless steel pipe shall be accurately measured with a special micrometer.

7. Cold drawing inspection shall be conducted for stainless steel pipes at normal temperature to check their adhesiveness. The bending angle is 90, and the bumpy radius is based on the technical bumpy radius. Electric welding is located on the outer side of the bending direction. After bending, observe whether the electric welding is broken.