IS 3601

IS:3601- 2006

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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