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I-Beam is another kind of Hot-Rolled Structrural Steel which is mostly used as main structure of building. Beam is used for steel construction rather than concrete construction and it makes the building looks more beautiful and lighter. The main producer of steel beam in Thailand is Siam Yamato Steel (SYS) which is our main supplier. All of our steel beams have passed the standard of TIS 1227-1996, JIS G 3129-1990 and JIST G 3101-1995. Size of I-Beams depends on each site as there are various sizes; the common grade for I-Beam are SS400 and SS540. The difference between I-Beam and WF Beam is that its flanges are tapered while the latter has straight flanges. Having tapered flanges allow I-Beam to be more stable and support more forces so it widely used in machinary and crane industry. As it can be seen that I-Beam has 2 Rs for the tapered flanges of its features.

 

HxB Weight Standard Sectional Dimension
H B T1 T2 R1 R2
kg/m kg/6m kg/9m kg/12m mm mm mm mm mm mm
150x75 17.1 102.6 153.9 205.2 150 75 5.5 9.5 9 4.5
200x100 26 156 234 312 200 100 7 10 10 5
200x150 50.4 302.4 453.6 604.8 200 150 9 16 15 7.5
250x125 38.3 229.8 344.7 459.6 250 125 7.5 12.5 12 6
55.5 333 499.5 666 250 125 10 19 21 10.5
  48.3 289.8 434.7 579.6 300 150 8 13 12 6
300x150 65.5 393 589.5 786 300 150 10 18.5 19 9.5
  76.8 460.8 691.2 921.6 300 120 11.5 22 23 11.5
350x150 58.5 351 526.5 702 350 150 9 15 13 6.5
87.2 523.2 784.8 1046.4 350 150 12 24 25 12.5
400x150 72 432 648 864 400 150 10 18 17 8.5
95.8 574.8 862.2 1149.6 400 150 12.5 25 27 13.5
450x175 91.7 550.2 825.3 1100.4 450 175 11 20 19 9.5
115 690 1035 1380 450 175 13 26 27 13.5
600x190 133 798 1197 1596 600 190 13 25 25 12.5
176 1056 1584 2112 600 190 16 35 38 19

Note: Special spec and customized steel can be ordered via +66(38) 026 509 Hot-Dip and Coated Primer Services are avaliable

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