API 5L Pipe Inspection & Test
API 5L Pipe Inspection & Test

Pipe Inspection & Test HYSP as API 5L certified steel pipe factory will apply all necessary pipe inspection & test or any other required steel pipe specification tests. To ensure the quality and safety of HYSP's mild welded steel pipes. According to API 5L, there are usually those tests: UT, hydrostatic tester, tensile test, chemical analysis, hardness, flattening test, visual inspection, weighing & measurement, marking. read more →

HYSP Carbon Welded Pipe Manufacture Process
HYSP Carbon Welded Pipe Manufacture Process

Welded Pipe Manufacture Process (1) - Steel Raw Material Quality Pipes start from top quality raw materials. HYSP purchase top grade steel coils to manufacture API 5L Line Pipe, ASTM A252 Piling Pipe, ASTM A53 Steel Pipe, EN10219 Structure Pipe. read more →

What is the difference between API 5L and ASTM A106 steel pipe?

API 5L is a norme for both seamless pipe and welded pipe, A106 is specially for seamless pipe. API 5L is a more comprehensive specification mainly developed for line pipes used in oil and gas industry; the range of strength grades is much wider. While the lower strength grades grades A & B are comparable to A106, the other grades have much higher strengths (e.g. X42, X56, X60,...etc). read more →

Effects of Alloying Elements in Steel

Effects of Alloying Elements in Steel Steel is basically iron alloyed to carbon with certain additional elements in steel to give the required properties to the finished melt. Listed below is a summary of the effects various alloying elements in steel. read more →

API 5L SPEC for Line Pipe (7) – Information to be Supplied by the Steel Pipe Purchaser

Information to be Supplied by the Purchaser​ - API 5L SPEC LINE PIPE General information The purchase order shall include the following information: a) quantity (e.g. total mass or total length of pipe); eg. 20000 meter or 2000 metric ton etc. b) PSL (1 or 2); (there are API 5L PSL1 and API 5L PSL2, please refer to API 5L Product Specification Level) c) type of pipe (see Table 2, there are API 5L welded steel pipe and API 5L seamless steel pipe); d) reference to ISO 3183 (this is one almost equal specification to API 5L SPEC); read more →