They are usually manufactured in steels under SAE 1008/1012 standard, with removed internal burr, offered in 6000 mm bar.
NBR 5580 (DIN 2440) - Pipes for Fluids' Conduction
NBR 5590 - Pipes for Conduction of fluids with Quality requirements
ASTM A53 -Fluid conductor with Quality requirements
DIN EN10255 - Seamed Pipes for conduction
Todos os Direitos Reservados 2014
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