Channels

Mangala Premium Channels
Depth – The tolerance on depth of channels shall be as follows :

Depth Tolerance
Over mm Up to and including mm mm
- 200 ±2.5
200 400 ±3.0

Width of Flange : The tolerance on Flange width up to and including 100 mm shall be +2mm. Flanges out-of-square or Out-of-parallel — The Flanges shall be parallel within 1 in 60 tolerance. (See Frg 1.1)

Flatness of Web : The tolerance on flatness of outer face of web shall be as follow : (See Fig 1.2)

Concavity Not Permitted
Convexity 15% of nominal thickness of web

Cumber & Sweep : The maximum permissible cumber and sweep for channels shall be 0.20 percent of the length (see fig 1.3)

S.No Size of Channel
1 Channel Heavy - 75 X 40 , 100 X 50
2 Channel Medium - 75 X 40 , 100 X 50
3 Channel Light - 75 X 40 , 100X50
4 Channel Heavy - 125X65
5 Channel Heavy - 150X75
6 Channel Light - 125X65
7 Channel Light - 150X75


Weight : The tolerance on weight per meter shall be : 2.5% for steel conforming to IS : 2062

Dimensions and Properties (As per IS:2062 Specification)

Min. Weight (kg/mtr) STD Weight (kg/mtr) Max. Weight (kg/mtr) D (mm) B (mm) t (mm) T (mm) Flange Slope Degree R1 (mm) R2 (mm)
MC 75 6.9615 7.140 7.3185 75 40 4.8 7.5 96 8.5 2.4
MC 100 9.321 9.560 9.799 100 50 5.0 7.7 96 9.0 2.4
MC 125 12.7725 13.100 13.4275 125 65 5.3 8.2 96 9.5 2.4
MC 150 16.380 16.800 17.220 150 75 5.7 9.0 96 10.0 2.4
Physical Properties and Chemical Composition

of Structural Steel As per IS:2062:2006

Grade Designation Quallity Chemical Composition Mechanical Properties
Ladle Analysis, Percent & Max. Tensile
Strength
Min. M. Po.		 Yield Streess
Mn. M. Po.		 Elangation
%Min. of
Gauge Length
5.65		 Identical Based
Diameter Max.
C Mo S P Si CE <20 <25
E-250 (480W) A 0.23 1.50 0.045 0.045 0.400 0.420 410 250 23 2t