Question 1: What is API 5L X52 PSL2?
Answer
API 5L is the implementation standard for pipeline steel pipes, X52 is a steel grade under this standard, and PSL2 is the product specification level. PSL2 is stricter than PSL1 in terms of chemical composition, tensile properties, impact energy, non-destructive testing and other indicators. API 5L X52 PSL2 can be used to transport oil, gas, water, etc. extracted from the ground to pipelines for oil and gas industrial enterprises.
Question 2: What are the specifications of straight seam steel pipes made of API 5L X52 PSL2?
Answer
There are API 5L X52 PSL2 standard, LSAW double-sided submerged arc welding, 30-35 degree chamfers on both ends, outer diameter O.D: 18-56 (457.2 = 1422.2mm), wall thickness W.T: 0.312-2 (7.92-50.8mm), length Unit Length: 5-12.3meter, 18*SCH40 and other specifications,
Question 3: How is the alloy design of API 5L X52 PSL2 pipeline?
Answer
The alloy design of API pipeline steel is developed based on low C-Mn-Si alloying. It adopts the addition of less than 0.065% of single microalloying elements or composite microalloying, and then adds a small amount of alloying elements (Cu, Ni, Cr) according to the thickness of the steel plate, the rolling mill capacity, etc. to produce APIX52-X70. The main microalloying used in the production of API 5L X52 PSL2 pipelines is Nb. To obtain higher strength, V microalloying is also widely used as an auxiliary.
Question 4: What is the difference between API 5L X52 PSL2 and PSL1 in terms of inspection?
Answer
In terms of inspection, PSL1 and PSL2 are obviously different. PSL1 does not require impact performance or non-destructive testing; while PSL2 has an average value of 0℃ Akv longitudinally ≥41J and transversely ≥27J for all steel grades except X80, and an average value of 0℃ Akv longitudinally ≥101J and transversely ≥68J for all steel grades of X80, and PSL2 should be non-destructively inspected branch by branch. In addition, pipelines should be subjected to water pressure tests branch by branch, and the standard does not stipulate that non-destructive water pressure is allowed.
Question 5: What is the market supply of API 5L X52 PSL2 pipelines?
Answer
There are many suppliers in the market that provide API 5L X52 PSL2 pipelines.
