Page 101 - PRODUCT CATALOGUE_with background music

B. Long Forging Machine
Maximum weight per piece 1.00 Tns.
1. 70 to 199 mm Rounds
2. 100 to 150 mm Squares

Size Tolerances for rolled products
A. Permissibe deviations in size for 20 mm to 140 mm Dia. Round Bars
(Reference IS 3739–1987 Gr. 1 RA 1998)
Nominal Size, mm Tolerance, mm
Over Upto & including Permissible Deviation Out of round
19 22 ± 0.20 0.30
22 25 ± 0.24 0.35
25 28 ± 0.25 0.40
28 31 ± 0.28 0.45
31 34 ± 0.30 0.50
34 38 ± 0.36 0.60
38 50 ± 0.40 0.60
50 64 + 0.8, - 0 0.80
64 80 + 1.2, - 0 0.80
80 89 + 1.2, - 0 0.80
89 100 + 1.6, - 0 1.20
100 114 + 1.6, - 0 1.20
114 125 + 2.0, - 0 1.50
125 139 + 2.0, - 0 1.50
139 140 + 3.2, - 0 2.00

B. Permissibe deviations in Hot Rolled Round Cornered Squares from
40 mm to 140 mm. RCS (Reference IS 3739–1987 Gr. 1 RA 1998)

Nominal Size, mm Tolerance, mm
Over Upto & including Permissible Deviation Out of round

39 50 ± 0.60 0.60
50 64 ± 1.20 0.80
64 89 + 1.80, - 0 1.30
89 100 + 0.240, - 0 1.80
100 114 + 2.40, - 0 1.80
114 140 + 3.00, - 0 2.50
Note: Material other than the above tolerances can also be supplied as mutually agreed upon.

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