- October 15, 2025In the production and final inspection of ASTM A53 steel pipes, Visual Inspection (VI) plays a vital role. It is not…
- October 15, 2025For buyers of ASTM A53 steel pipes, the Mill Test Certificate (MTC), also known as the Mill Test Report (MTR),…
- October 14, 2025To ensure that the ASTM A53 steel pipes delivered to customers meet standards and engineering reliability, LONGMA has established a…
- October 14, 2025During a factory audit, six core areas must be prioritized for verification: (1) Product specifications and standard scope (ASTM A53…
- October 11, 2025To verify the steel grade and chemical composition of ASTM A53 steel pipes, one must rely on Table 1 (Chemical Composition…
- October 11, 2025For welded steel pipes under the ASTM A53 standard, Ultrasonic Testing (UT) is not just an "optional item"; in many…
- October 10, 2025When procuring ASTM A53 welded or seamless steel pipes, the top concerns for customers are always: Is the pipe reliable?…
- October 10, 2025In accordance with the ASTM A53/A53M standard, hydrostatic testing is the baseline and mandatory item for manufacturing inspection. For Electric…
- October 10, 2025In ASTM A53, the key "nondestructive electric tests" for different types of pipes (Type E/F Welded Pipes, Type S Seamless…

