Rolled Products

Section Range Tolerance (IS 3739 Gr. I : 1987) Indicative Sketch
    Over Under Ovality  
Round Bars
(Outsourced)
14,15,16,17,18,19,20,21,22
23,24,25,26,26.2,26.3,26.5
27,28,28.4,28.5,29.5,30,30.2
30.3,30.3,301.5,32,32.5,33.5
34,34.5,35,36,36.5,38
38.5,39,42,48,53,68,83
+0.18
+0.20
+0.24
+0.25
+0.36
+0.40
-0.18
-0.20
-0.24
-0.25
-0.36
-0.40
0.25
0.30
0.35
0.40
0.60
0.60

roundbars

D = Nominal Dia
D1 =Max. Dia. At a given c/s
D2 =Min. Dia. At the same c/s
D1 – D2 =Ovality(Out of Round)
Rolled In-house 40,45, 50
55,56.5,60,63
65,70,75,80,85,
90,95,100,105,110
115,120,125,130,135
140,150,160
220
+0.40
+0.80
+0.80
+1.20
+1.60
+2.00
+3.20
+4.00
-0.40
-0.00
-0.00
-0.00
-0.00
-0.00
-0.00
-0.00
0.60
0.80
0.80
0.80
1.20
1.50
2.00
2.50
round Bulged Profile
Regular Profile
Fixed Profile
48 - 50
50.5 - 64 (Any intermediate
64.5 - 88.5 Size can be rolled)
+0.6 0
+1.20
+1.80
-0.60
-1.20
-0.00
0.60
0.80
1.30
bulgedprofileS = Length across
Bulged Face
75 - 89 (Intermediate sizes
90 - 114 can be rolled in
115 - 340 5 mm increments)
+1.80
+2.40
+3.00
-0.00
-0.00
-0.00
1.30
1.80
2.50
regularprofileS = Length of side
D1,D2= Length Across
Diagonal Corners
D1 – D2 =Out of Square
R = Corner Radius
182(Corner Radius: 25+/-3 mm)
287(Corner Radius: 48+/-5 mm)
300(Corner Radius: 50+/-5 mm)
340(Corner Radius: 58+/-5 mm)

+3.00
+3.00
+3.00
+3.00

-0.00
-0.00
-0.00
-0.00
2.50
2.50
2.50
2.50
Rectangle (Slabs) Thickness: 35 – 150
Width: 150 – 540
(Intermediate sizes can be rolled in 5 mm increments)
+2.00
+10.00
-4.00
-0.00
-
-
rectangles
W = Width
T = Thickness