CARBON STEEL H BEAM Q355B HM is named due to its shape. The parallel pieces are known as flanges, which are wider than I-beam – hence the name wide flange beam – and the line drawing included piece is called the web. Wide flange beam is also known as H-beam due to their distinctive shape, similar to a capital letter “H” when viewed at the cross section. This shape is very efficient for carrying loads of weight without bending.
CARBON STEEL H BEAM Q355B HM Chemical Composition (Hot rolled)
Hot rolled steel chemical composition based on heat analysis.
| Chemical Composition (Heat Analysis), %, ≤ | ||||||||||
| Steel Grade | Quality Grade | C | Si | Mn | P | S | Cr | Ni | Cu | N |
| Q355 | Q355B | 0.24 | 0.55 | 1.6 | 0.035 | 0.035 | 0.30 | 0.30 | 0.40 | 0.012 |
| Q355C | 0.20 | 0.030 | 0.030 | 0.012 | ||||||
| Q355D | 0.20 | 0.025 | 0.025 | – | ||||||
CARBON STEEL H BEAM Q355B HM is an economical and efficient profile with more optimized section area distribution and more reasonable strength to weight ratio, so it is named because its section is the same as the English letter "H". Because all parts of H beam are arranged at right angles, H beam has been widely used for its advantages of strong bending resistance, simple construction, cost saving and light structural weight in all directions.
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