Q1: What are the standard manufacturing processes for seamless A333 Gr.6 pipe?
A: It is manufactured through hot rolling (including piercing, rolling) or cold drawing processes. Cold-drawn pipes require subsequent heat treatment like annealing -2.
Q2: What are the key application industries for this material?
A: Its key application industries include:
Oil & Gas: For LNG transfer lines and low-temperature processing.
Chemical & Fertilizer: In plants producing ammonia and urea.
Power Generation: Particularly in systems involving low-temperature coolants -1-7-9.
Q3: What quality tests are required for ASTM A333 Gr.6 pipe?
A: Mandatory tests include tensile tests, impact tests (Charpy V-notch) at the specified minimum temperature, and hydrostatic tests. Non-destructive tests like ultrasonic inspection are also common -3-10.
Q4: What is the Chinese equivalent standard and grade for ASTM A333 Gr.6?
A: The equivalent standard is GB/T 18984. The closest corresponding grades in terms of application and temperature range are 16MnDG and 10MnDG -1-3.
Q5: Why is ASTM A333 Gr.6 a preferred choice in international projects?
A: The ASTM/ASME standards are widely referenced in international project designs. Using ASTM A333 Gr.6 facilitates global procurement, ensures compliance with international engineering specifications, and is crucial for equipment export
