
ISMB is a Indian Standard Medium Beam. ISMB beams mostly used in construction application because of their structural strength and adaptability.These beams are suitable for a variety of load-bearing applications in buildings, bridges, and other infrastructure projects since they are constructed in accordance with the Indian Standard (IS) criteria.
Within its capacity range, the medium weight beam scale is made to give accurate readings. ISMB weight is determined by its cross-sectional measures, which include its height, flange width, and web thickness.
Example : height = 200 mm, width = 100 mm, thickness=6 mm then the weight is 20kg/m
Table of Content
- Dimensions and Weight of Vizag Steel Make ISMB Beam
- SAIL ISMB Beam Weight Chart
- ISMB Weight Chart
- ISMB Beam Size Chart
- ISMB Beam Weight Calculator
- ISMB VS ISMC
- SAIL Beam Rolling Tolerance
- ISMB Beam Weight Calculation Formula
- ISMB VS ISHB
- ISMB Beam Weight in Kg Per Foot
- ISMB Beams Codes and Standards
- ISMB Full Form
- Why the ISMB Weight Chart is Valuable for Architects and Engineers
- How the ISMC Weight Chart Helps with Size Assessment and Material Measurement
- ISMB Weight Chart Role of Standardization
- Dimension of I-Beam Chart
- Indian Standard Medium Weight Beam Application
- Dimension of T-Beam Chart
Vizag Steel Make Indian Standard Medium Weight Beam Dimensions and Size Chart
Engineers, architects, and construction experts can benefit greatly from the measurements and size table, which provides comprehensive information on the structural characteristics of ISMB beams.
Size and dimensions determine the beam’s load-bearing capacity and suitability for specific structural needs. ISMB size chart includes nominal size such as ISMB 200, ISMB 250, etc., height, width and thickness
Dimensions and Weight of Vizag Steel Make ISMB Beam
| Side x Side x Thickness in mm | HE BEAMS 120 X 114 X 5 | ISMB BEAMS 125 X 70 X 5 | 150 X 75 X 5 | 175 X 85 X 5.8 |
|---|---|---|---|---|
| Section Wt.(Kg/m) | 19.9 | 13.3 | 15 | 19.6 |
View SAIL ISMB Weight Per Meter and Thickness Chart
Gives details regarding the web thickness and flanges, among other parts of the ISMB beams. While the flange thickness influences the beam’s overall stability and bending strength, the web thickness plays a crucial role in the beam’s capacity to bear vertical loads and prevent buckling.
Knowing the weight makes it easier to plan for handling, transportation, and support, and knowing the thickness guarantees that the beams will fulfill the required durability and strength requirements.
| Size In millimeter | Weight Per Foot in Kilogram | Weight Per Meter In Kilogram | Weight per 12 M Pcs In Kilogram |
|---|---|---|---|
| 125 x 70 x 5 | 4.07 | 13.35 | 160 |
| 150 x 75 x 5 | 4.56 | 14.96 | 180 |
| 200 x 100 x 5.7 | 7.74 | 25.4 | 305 |
| 250 x 125 x 6.9 | 11.37 | 37.3 | 448 |
| 300 x 140 x 7.7 | 14.05 | 46.1 | 553 |
| 350 x 140 x 8.1 | 15.97 | 52.4 | 629 |
| 400 x 140 x 8.9 | 18.78 | 61.6 | 739 |
| 450 x 150 x 9.4 | 22.07 | 72.4 | 869 |
| 500 x 180 x 10.2 | 26.49 | 86.9 | 1043 |
| 600 x 210 x 12 | 37.49 | 123 | 1476 |
| ISMB Designation | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 300 | 350 | 400 | 450 | 500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width of Flange in millimeter | 50 | 70 | 75 | 85 | 100 | 110 | 125 | 140 | 140 | 140 | 150 | 180 |
| Depth of Section in millimeter | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 300 | 350 | 400 | 450 | 500 |
| Thickness of Flange in millimeter | 7 | 8 | 8 | 9 | 10 | 11.8 | 12.5 | 13.1 | 14.2 | 16 | 17.4 | 17.2 |
| Weight per Mtr. in kilogram | 8.9 | 13.3 | 15 | 19.6 | 24.2 | 31.1 | 37.3 | 46 | 52.4 | 61.5 | 72.4 | 86.4 |
| Depth * Flange in mm | 152 * 152 | 152 * 152 | 152 * 152 | 203 * 203 | 203 * 203 | 203 * 203 | 203 * 203 | 203 * 203 | 254 * 254 | 254 * 254 | 254 * 254 | 254 * 254 | 254 * 254 | 305 * 305 | 305 * 305 | 305 * 305 | 305 * 305 | 305 * 305 | 305 * 305 | 305 * 305 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sectional Weight in kiloram/m | 23 | 30 | 37 | 46 | 52 | 60 | 71 | 86 | 73 | 89 | 107 | 137 | 167 | 97 | 118 | 137 | 158 | 198 | 240 | 283 |
Check ISMB Steel Section Properties, Read ISMB VS ISMC
Although ISMB and ISMC sections are equally important in construction, because of their greater strength and rigidity, ISMB sections are recommended for principal load-bearing applications. Because of their channel design, ISMC sections are usually utilized for secondary supports and lighter structural parts. Comprehending these variations guarantees that the right parts are chosen in accordance with the project’s structural specifications.
| Feature | ISMC (Medium Channel) | ISMB (Medium Beam) |
|---|---|---|
| Shape | C | I |
| Designation |
|
|
| Flange Width | Narrow | Wide |
| Cross-Sectional Area | Less | More |
| Thickness of Web | Thin | Thick |
| Depth | Less | Greater |
| Applications |
|
|
| Moment of Inertia | Low | High |
| Design Standards | IS 808 | IS 808 |
| Strength | Low | High |
| Load Bearing Capacity | Low | High |
| Manufacturing | C-sections | I-sections |
| Weight per Unit Length | Light | Heavy |
| Leg length in mm | Camber | Leg length in mm | Tolerance |
|---|---|---|---|
| < 100 | As per agreement | Up to 45 | ±1.5 |
| > 100 | 0.2 % of length | > 45 to 100 | ± 2.0 |
| > 100 | ± 2 % |
| Tolerance on Sectional | Weight |
|---|---|
| Thickness in mm | Tolerance |
| Up to 3 | ± 5 % |
| Over 3 | ± 5 %, -3% |
Refer Weight Calculation Formula of ISMB Beam
The formula used to calculate the weight of an ISMB beam is:
Weight (kg/m) = 4π × Density × (OD^2 − (OD – 2 × Thickness) 2) × Conversion Factor1
where:
OD = outer diameter
Density = 7850 kg/m³
ISMB Beam Weight Calculation Formula

ISMB Beam Weight in Kg Per Foot, See ISMB vs ISHB
Although both ISMB and ISHB sections are necessary for various structural requirements, ISHB beams are preferred for heavy loads because of their increased strength and longevity, while ISMB beams are utilized for medium weights.
| Feature | ISHB | ISMB |
|---|---|---|
| Shape | I-beam | I-beam |
| Designation | Heavy Beam | Medium Beam |
| Strength | Higher bending strength | Good bending strength |
| Weight per Unit Length | Heavier than ISMB | Heavier than ISMC |
| Cross-Sectional Area | Large | Medium |
| Depth | Greater | Moderate |
| Flange Width | Wide | Moderate |
| Thickness of Web | Thicker | Moderate |
| Typical Usage |
|
|
| Moment of Inertia | High | Moderate |
| Load Bearing Capacity | High | Medium |
| Design Standards | IS 808 | IS 808 |
| Manufacturing | I-sections | I-sections |
ISMB Beam Weight in Kg Per Foot
| Size in millimeter | Weight Kilogram/Meter | Weight Kilogram /Feet |
|---|---|---|
| 200 * 100 * 5.7 | 25.4 | 7.742 |
| 300 * 140 * 7.7 | 46.1 | 14.051 |
| 250 * 125 * 6.9 | 37.3 | 11.369 |
| 400 * 140 * 8.9 | 61.6 | 18.775 |
| 350 * 140 * 8.1 | 52.4 | 15.972 |
| 500 * 180 * 10.2 | 86.9 | 26.487 |
| 450 * 150 * 9.4 | 72.4 | 22.067 |
| 600 * 210 * 12 | 123 | 37.49 |
ISMB Beams Codes and Standards
| IS 808:1989 | IS 2062:2011 |
ISMB – Indian Standard Medium Weight Beam
Why the ISMB Weight Chart is Valuable for Architects and Engineers
- For load calculation
- To determining the load carrying capacity
- Material efficiency
- Cost because the weight is directly affects the cost of beam material
- Construction planning
- Ease for Selection and Application
How the ISMB Weight Chart Helps with Size Assessment and Material Measurement
- Size Assessment
- For listing the flange width, height and web thickness of different beam sizes
- To know the dimensions and weight each single beam size for load bearing capacity
- Design Compatibility
- Material Measurement
- Calculating Material Quantities
- Load Distribution
- Cost
- Logistics and Handling
ISMB Weight Chart Role of Standardization
- Consistency in Dimensions and Weights
- Quality Control
- Safety
- Cost Efficiency
- Ease for Selection

| Beam height | Flange thickness | Flange width | Flange thickness |
|---|---|---|---|
| h | t | b | s |
| 96 | 8 | 100 | 5 |
| 100 | 7.2 | 55 | 4.5 |
| 114 | 8 | 120 | 5 |
| 117.6 | 5.1 | 64 | 3.8 |
| 120 | 20 | 106 | 12 |
| 152 | 9 | 160 | 6 |
| 155 | 12.5 | 151 | 8.5 |
| 157 | 5.9 | 82 | 4 |
| 157 | 5.9 | 82 | 4 |
| 160 | 7.8 | 81 | 5 |
| 160 | 7.4 | 82 | 5 |
| 160 | 15 | 152 | 10 |
| 162 | 11.6 | 154 | 8.1 |
| 177 | 6.5 | 91 | 4.3 |
| 177 | 6.5 | 91 | 4.3 |
| 180 | 8 | 91 | 5.3 |
| 180 | 14 | 180 | 8.3 |
| 193 | 9 | 150 | 6 |
| 194 | 9 | 150 | 6 |
| 200 | 8.4 | 100 | 5.2 |
| 200 | 8 | 100 | 5.5 |
| 200 | 8 | 100 | 5.5 |
| 200 | 8.5 | 100 | 5.6 |
| 200 | 24 | 186 | 14.5 |
| 200 | 12 | 200 | 8 |
| 200 | 12 | 200 | 8 |
| 203 | 9.5 | 101 | 6.5 |
| 203 | 11 | 203 | 7.2 |
| 207 | 8.4 | 133 | 5.8 |
| 210 | 10.2 | 134 | 6.4 |
| 210 | 14.2 | 205 | 9.1 |
| 220 | 22 | 202 | 14 |
| 230 | 9 | 110 | 5.6 |
| 239 | 9.3 | 115 | 5.5 |
| 244 | 11 | 252 | 11 |
| 246 | 12 | 249 | 8 |
| 249 | 13.5 | 176 | 8.5 |
| 250 | 14 | 250 | 9 |
| 250 | 14 | 255 | 14 |
| 258 | 13.5 | 260 | 9 |
| 260 | 12.7 | 147 | 7.2 |
| 260 | 17.3 | 256 | 10.7 |
| 262 | 11.2 | 147 | 6.6 |
| 262 | 15.5 | 260 | 10 |
| 266 | 13 | 148 | 7.6 |
| 269 | 22.1 | 259 | 13.5 |
| 299 | 10 | 140 | 6 |
| 299 | 15 | 200 | 9 |
| 300 | 10.2 | 135 | 6.5 |
| 300 | 15 | 201 | 9 |
| 300 | 15 | 201 | 9 |
| 300 | 15 | 300 | 10 |
| 306 | 18 | 203 | 11 |
| 308 | 19 | 301 | 12 |
| 310 | 14 | 152 | 9.5 |
| 310 | 13.7 | 167 | 7.9 |
| 314 | 22 | 206 | 13 |
| 340 | 14 | 250 | 9 |
| 341 | 35.5 | 361 | 22 |
| 342 | 15 | 348 | 10 |
| 346 | 9 | 174 | 6 |
| 346 | 17 | 349 | 11 |
| 348 | 17.5 | 350 | 11 |
| 355 | 11.6 | 171 | 7.2 |
| 355 | 21.5 | 351 | 13.5 |
| 360 | 12.3 | 145 | 7.5 |
| 360 | 24 | 352 | 15 |
| 363 | 21.7 | 257 | 13 |
| 384 | 57 | 374 | 36 |
| 389 | 38.5 | 363 | 24 |
| 390 | 16 | 300 | 10 |
| 392 | 16 | 300 | 11.5 |
| 394 | 18 | 398 | 11 |
| 396 | 11 | 199 | 7 |
| 400 | 13 | 155 | 8.3 |
| 400 | 21 | 400 | 13 |
| 403 | 10.9 | 177 | 7.5 |
| 414 | 28 | 405 | 18 |
| 434 | 15 | 299 | 10 |
| 440 | 85 | 389 | 52 |
| 446 | 12 | 199 | 8 |
| 446 | 12 | 199 | 8 |
| 446 | 67 | 378 | 42 |
| 487 | 17.5 | 300 | 14.5 |
| 489 | 17.5 | 300 | 14.5 |
| 492 | 12 | 199 | 8.8 |
| 492 | 12 | 199 | 8.8 |
| 496 | 14 | 200 | 9.2 |
| 496.2 | 21 | 303.8 | 14.2 |
| 499 | 23.5 | 300 | 16.5 |
| 500 | 15.2 | 170 | 10 |
| 533 | 15.6 | 209 | 10.2 |
| 540 | 114 | 411 | 71 |
| 548 | 95 | 395 | 59 |
| 597 | 17.5 | 230 | 11 |
| 597 | 24.5 | 300 | 18 |
| 597 | 24.5 | 300 | 18 |
| 599 | 12.8 | 178 | 10 |
| 612 | 19.6 | 229 | 11.9 |
| 616 | 34 | 302 | 23 |
| 707 | 27.5 | 300 | 18 |
| 710 | 25 | 262 | 17 |
| 715 | 31.5 | 300 | 20.5 |
| 718 | 36.5 | 320 | 23 |
| 725 | 36.5 | 300 | 23 |
| 859 | 31 | 292 | 17 |
| 881 | 18.5 | 299 | 15 |
| 900 | 22 | 300 | 15.5 |
| 903 | 20.1 | 304 | 15.2 |
| 970 | 21.1 | 300 | 16 |
| 990 | 21 | 320 | 16 |
| 1006 | 29 | 320 | 18 |
| 1013 | 32.5 | 320 | 19.5 |
Indian Standard Medium Weight Beam Application


| Beam height | Flange thickness | Flange width | Flange thickness |
|---|---|---|---|
| h | s | b | t |
| 94 | 6.5 | 200 | 10 |
| 110 | 7 | 240 | 10.5 |
| 122 | 7 | 180 | 10 |
| 124 | 8 | 260 | 12 |
| 127.5 | 10 | 260 | 15.5 |
| 144 | 8.5 | 200 | 13 |
| 146 | 9 | 200 | 15 |
| 148.5 | 11.5 | 300 | 17.5 |
| 167 | 10 | 250 | 14 |
| 169 | 10.5 | 250 | 16 |
| 190.5 | 9.5 | 300 | 14 |
| 193 | 11 | 400 | 16.5 |
| 196.5 | 13 | 400 | 20 |
| 241 | 14.5 | 300 | 17.5 |
| 247 | 16.5 | 300 | 23.5 |
| 290 | 16 | 320 | 20.5 |
| 298 | 20 | 320 | 28.5 |
