Equal Angles Angle : The tolerance on Leg length shall be as follows :
| Over (mm) | Up to and including (mm) | Tolerance |
|---|---|---|
| – | 45 | +1.5 mm |
| 45 | 100 | +2.0 mm |
| 100 | – | +2 % |
Out of Square : The leg of angles shall be perpendicular to each other within a tolerance of + 1.0degree. The difference between the leg lengths of equal leg angles shall limited to 75 percent of the total tolerance (plus and minus) specified on the leg length.
Equal Angles Angle : The tolerance on Leg length shall be as follows :
| Over (mm) | Up to and including (mm) | Tolerance |
|---|---|---|
| – | 45 | +1.5 mm |
| 45 | 100 | +2.0 mm |
| 100 | – | +2 % |
Equal Angles Camber : The permissible limits for camber are as follows :-(See Fig 1.4)
| Leg Length (mm) | Chamber Max. (mm) |
|---|---|
| Less than 100 | o be agreed between the manufacturer and purchaser |
| Including and over 100 | 0.2 % of Length |
| S.No | Size of Angles |
|---|---|
| 1 | 45 X 45 X 5,6 |
| 2 | 50 X 50 X 5, 6 |
| 3 | 65 X 65 X 5, 6 |
| 4 | 65 X 65 X 8,10 |
| 5 | 75 X 75 X 5, 6 |
| 6 | 75 X 75 X 8,10 |
| 7 | 90 X 90 X 6,8,10 |
| 8 | 100 X 100 X 6,8,10 |
Dimensions and Properties (As per IS 2062:2006 Specification)
| Size | Min Weight (kg/mtr) | STD Weight (kg/mtr) | Max. Weight (kg/mtr.) | Root Radius Rs (mm) |
|---|---|---|---|---|
| 45×5 | 3.295 | 3.400 | 3.570 | 5.50 |
| 45×6 | 3.880 | 4.000 | 4.200 | 5.50 |
| 50×3 | 2.185 | 2.300 | 2.415 | 6.000 |
| 50×4 | 2.910 | 3.000 | 3.150 | 5.00 |
| 50×5 | 3.586 | 3.800 | 3.990 | 6.00 |
| 50×6 | 4.365 | 4.500 | 4.725 | 6.00 |
| 55×4 | 3.201 | 3.300 | 3.465 | 6.50 |
| 55×5 | 3.977 | 4.100 | 4.305 | 6.50 |
| 55×6 | 4.753 | 4.900 | 5.145 | 6.50 |
| 55×8 | 6.208 | 6.400 | 6.720 | 6.50 |
| 60×4 | 3.589 | 3.700 | 3.885 | 6.50 |
| 60×5 | 4.365 | 4.50 | 4.725 | 6.50 |
| 60×6 | 5.238 | 5.400 | 5.670 | 6.50 |
| 60×8 | 6.790 | 7.000 | 7.350 | 6.50 |
| 65×4 | 3.880 | 4.000 | 4.200 | 6.50 |
| 65×5 | 4.755 | 4.900 | 5.145 | 6.50 |
| 65×6 | 5.626 | 5.800 | 6.090 | 6.50 |
| 65×8 | 7.469 | 7.700 | 6.085 | 6.50 |
| 70×5 | 5.141 | 5.300 | 5.565 | 7.00 |
| 70×6 | 6.11 | 6.300 | 6.615 | 7.00 |
| 70×8 | 8.051 | 8.300 | 8.715 | 7.00 |
| 70×10 | 9.394 | 10.200 | 10.710 | 7.00 |
| 75×5 | 5.529 | 5.700 | 5.985 | 7.00 |
| 75×6 | 6.596 | 6.800 | 7.140 | 7.00 |
| 75×8 | 8.633 | 8.900 | 9.345 | 7.00 |
| 75×10 | 10.670 | 11.000 | 11.550 | 7.00 |
| 80×6 | 7.081 | 7.300 | 7.665 | 8.00 |
| 80×8 | 9.312 | 9.600 | 10.080 | 8.00 |
| 80×10 | 11.446 | 11.800 | 12.390 | 8.00 |
| 80×12 | 13.580 | 14.000 | 14.700 | 8.00 |
| 90×6 | 7.954 | 8.200 | 9.660 | 8.50 |
| 90×8 | 10.476 | 10.800 | 11.340 | 8.50 |
| 90×10 | 12.998 | 13.400 | 14.070 | 8.50 |
| 90×12 | 15.326 | 15.800 | 16.590 | 8.50 |
| 100×6 | 8.924 | 9.200 | 9.660 | 8.50 |
| 100×8 | 11.737 | 12.100 | 12.705 | 8.50 |
| 100×10 | 14.453 | 14.900 | 15.645 | 8.50 |