ASTM A671/A671M LSAW Steel Pipe

This specification covers electric-fusion-welded steel pipe with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels and suitalbe for high-pressure service at atmospheric and lower temperatures.

PRODUCT DESCRIPTION

Standard: ASTM A671/A671M

Application of ASTM A671/A671M LSAW Steel Pipe:

Pipe ordered under this specification is used for high-pressure service at atmospheric and lower temperatures. Mainly used for oil and natural gas transmission.

Manufacturing Process:

ASTM A671 LSAW(JCOE) Carbon Steel Pipe shall be double-welded, full-penetration welds made in accordance with procedures and by welders or welding operators qualified in accordance with the ASME Boiler and pressure Vessel Code, Section IX.

Heat Treatment of ASTM A671 LSAW(JCOE) Carbon Steel Pipe:

All classes other than 10, 11, 12 and 13 shall be heat treated in furnace controlled to ±15℃ and equipped with a recording hydrometer so that heating records are available.