SPECIFICATION FOR STEEL TUBES & TUBULARS CONFORMING TO IS 1239:2004

Steel Tubes for Mechanical and General Engineering Purposes-Specification
Table 4 Manufacturing Tolerances
Sr. No.
Over
Up to and Including
Tolerance on Outside Diameter
mm
mm
mm
(1) (2) (3) -4
i)  – 25.4 ± 0.15
ii) 25.4 51.0 ± 0.18
iii) 51.0 63.5 ± 0.25
iv) 63.5 76.1 ± 0.25
v) 76.1 88.9 ± 0.31
vi) 88.9 101.6 ± 0.36
vii) 101.6 114.3 ± 0.43
viii) 114.3 152.4 ± 0.58
ix) 152.4 168.3 ± 0.65
x) 168.3 – ± 0.75
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