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LSAW Steel Pipe: Physical Tolerance
Date:2016-03-22      View(s):1812      Tag:LSAW Steel Pipe, longitudinal weld pipe, longitudinal submerged arc weld pipe

API 5L also has a clear requirement on the physical tolerance for manufacturing LSAW Steel Pipes. Below is the tolerance for outside diameter and wall thickness. PRIME STEEL PIPE only supply the API LSAW Steel Pipe strictly accordance with the standard, our invested factory is API and ISO qualified. 

Tolerance of Outside Diameter

Standard Out Diameter
Tolerance of Pipe End
Tolerance of Pipe Body
API 5L

219.1~273.1

+1.6mm, -0.4mm
±0.75%
274.0~320
+2.4mm, -0.8mm
±0.75%
323.9~457
+2.4mm, -0.8mm
±0.75%
508
+2.4mm, -0.8mm
±0.75%
559~610
+2.4mm, -0.8mm
±0.75% 

Tolerance of Wall Thickness

Standard Grade
Out Diameter
Wall Thickness
API 5L A 219.1~457
+15%, -12.5%
B 508~610
+17.5%, -12.5%
X42-X80 508~610
+19.5%, -8%


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