ASTM A333 Standard for seamless and welded steel pipes for low temperature use. ASTM A333 gr.6 steel pipe has an impact toughness of -45, and is usually used in applications where pipelines are directly exposed to cold environments during construction and

ASTM A519 seamless steel pipe is made of carbon steel and alloy steel, and are used for structural or other mechanical purposes involving machining or heat treatment, where close tolerances, smoothness or clear physical properties are important factors. A

34CrMo4 steel pipe is a high-quality quenched and tempered alloy structural steel, which belongs to high-quality low-carbon, low-alloy chromium, molybdenum and nickel surface hardening steel. Oil quenching, tempering hardness is 18-22 HRc. The annealing h

The main difference between ASTM A53 seamless steel pipe and structural seamless steel pipes is that the fluid seamless steel pipes are subjected to hydraulic tests one by one, or ultrasonic, eddy current, and magnetic flux leakage testing. Therefore, in