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Dimension Tolerances of Seamless Steel Pipe

Great steel pipe as a leading steel pipe manufacturer for 24 years in China, we can supply a full range of seamless steel pipes with hot or cold rolled finish. As below is the tolerance for types seamless steel pipes with different out diameters and wall thickness sizes.


Pipe types

Pipe Szie(mm)

Tolerances

Hot rolled

OD

<50

±0.50mm

≥50

±1%

WT

<4

±12.5%

≥4~20

+15%, -12.5%

>20

±12.5%

Cold drawn

OD

6~10

±0.20mm

10~30

±0.40mm

30~50

±0.45

>50

±1%

WT

<1

±0.15mm

>1~3

+ 15%, - 10%
>3

+ 12.5%, - 10%