The production and quality inspection of alloy steel pipes must comply with corresponding standards. Below are the currently applicable main standards:
Latest Update:
GB/T 9948-2025 "Seamless steel tubes for petrochemical and chemical plants" was issued on June 30, 2025, and will take effect on January 1, 2026. This new standard consolidates several previous standards, including those for petroleum cracking and high-pressure chemical fertilizer equipment.
Material Selection Suggestion:
Select the appropriate grade and inspection level according to actual operating conditions — temperature, pressure, and medium corrosivity — referencing the corresponding standards.
