Why Can We Always Ensure Excellent Quality

Quality Control

Quality control and acceptance standards in the production process of seamless steel pipes are key links to ensure that the quality of the final product meets the specific application requirements. The following are some basic quality control measures and acceptance standards:

Raw material inspection: Before production begins, the raw materials are strictly inspected for chemical composition and physical properties to ensure that they meet the requirements for the production of seamless steel pipes.

Production process monitoring: During the manufacturing process of steel pipes, key parameters such as temperature, pressure, and speed are monitored in real time to ensure the stability of the production process and the consistency of product quality.

Non-destructive testing: Use non-destructive testing technologies such as ultrasonic testing, X-ray testing, and magnetic particle testing to detect internal and surface defects of steel pipes to ensure that the steel pipes are free of defects such as cracks, holes, and inclusions.

Dimensional accuracy control: Accurately measure the outer diameter, wall thickness, length and other dimensions of the steel pipe to ensure that they meet the design specifications.

Surface treatment: Clean and treat the surface of the steel pipe to remove oxide scale, oil stains, etc., to provide a good base for subsequent coating or anti-corrosion treatment.

Heat treatment: According to the material and application requirements of the steel pipe, appropriate heat treatment such as normalizing, annealing or quenching is carried out to improve the mechanical properties and microstructure of the steel pipe.

Performance test: The steel pipe is subjected to tensile test, impact test, etc. to evaluate whether its mechanical properties meet the standard requirements.

Acceptance standard: According to relevant national or international standards, such as GB/T 14976-2012 "Stainless Steel Seamless Steel Pipe for Fluid Transportation", GB/T 50398-2018 "Seamless Steel Pipe Engineering Design Standard", GB/T8162-2018 "Seamless Steel Pipe for Structure", etc., the steel pipe is finally accepted.

Packaging and labeling: The steel pipe is properly packaged and labeled according to the standard requirements to ensure protection during transportation and storage, and provide necessary product information.

Quality records and traceability: Establish a complete quality record system to record and archive key data in the production process to achieve product quality traceability.

Through these strict quality control measures and acceptance standards, the production quality of seamless steel pipes can be ensured to meet the high standards of different industrial applications.