Material Grade
Standard Specification
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Grade A, B
ASTM A53 (Sch 7, 10, 40,80)
Welded Black Steel Pipes for Pressure Purposes

Light, Medium, Heavy
AS 1074-1989
Steel Tubes and Tubulars for Odinary Service
Light, Medium, Heavy
BS 1387
Screwed and Socketed Steel Tubes and Tubular and for Plain End Steel Tubes Suitable for Welding
Medium & Heavy Series
EN 10255
Non-alloy Steel Tubes Suitable for Welding and Threading
SGP
JIS G3452
Carbon Steel Pipes For Ordinary Piping
STPG370, STPG410
JIS G3454
Carbon Steel Pipe for Pressure Service