ASTM API 5L X70

ASTM API 5L X70 Seamless and Welding Steel Pipe/Tube
ASTM API 5L X70 seamless and welding pipe/tube use for petroleum/ natural gas pipeline, bagi menyampaikan air, Saliran, gas arang batu, buburan mineral dan lain-lain cecair tekanan sederhana rendah. Juga API 5L X70 boleh digunakan untuk industri kimia, struktur bangunan, bekalan haba dan longgokan memandu projek-projek.

Atas sifat keanjalan keluli paip(MPa(psi) minimum):
ASTM API 5L X70 lancar dan Keluli kimpalan paip ujian tegangan:
Ujian tegangan hendaklah dijalankan mengikut ISO 6892-1 atau ASTM A3710.
Bagi API 5L X70 paip badan ujian, kekuatan hasil, kekuatan tegangan,the yield ratio(sebagaimana yang sesuai),and the percentage elongation after fracture shall be determined.For pipe weld tests,the tensile strength shall be determined.
The API 5L X70 percentage elongation after fracture shall be reported with reference to a gauge length of 50mm(2 dalam).For test API 5L X70 pieces having a gauge length less than 50mm(2 dalam),the measured elongation after fracture shall be converted to a percentage elongation in 50mm(2 dalam)in accordance with ISO2566-1或ASTM A370.