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Beam

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Kazakhstan, Almaty
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Technical characteristics
  • BrandММК, НТМК
  • Materialст3, 09Г2С
Description

The beam is dvutavrovy

Hot-rolled dvutavrovy beams (two-Tauris) produced according to GOST 535-88 belong to this type of steel products.
Two-Tauris share on:
two-Tauris with parallel sides of shelves:

  • B – normal (20B, etc.);
  • Sh-shirokopolochny (20Sh, etc.);
  • To – columned (20K, etc.).

The range of dvutavrovy beams with parallel sides of shelves can correspond both to GOST 26020-83, and own specification HUNDRED ASChM 20-93 Nizhniy Tagil Iron and Steel Works, being the main producer of two-Tauris in Russia.
two-Tauris with a bias of sides of shelves:
usual (bias of internal sides of shelves of 6-12%) GOST 8239-89: No. 10, 12, 14, 16, etc.;
The range of such dvutavrovy beams corresponds to GOST 8239-89.
Special (M and C):

  • M – for suspended ways (a bias of internal sides of shelves no more than 12%): 18M, 24M, 30M, etc.;
  • With – for reinforcing of mine trunks (a bias of internal sides of shelves no more than 16%): 14C, 20C etc.

The range of such dvutavrovy beams corresponds to GOST 19425-74.
Number of a beam is its conditional size (height) in see.
For example: the normal two-Tauri 30B1 – h (beam height) =296mm, the normal two-Tauri 30B2 – h=299mm. All other sizes: width of shelves, wall thickness, etc. according to state standard specification.
The minimum number of the two-Tauri 10, maximum – 100 (100B4). Everything that above or is made only by the special order to manufacturers below.
The size of a beam is a distance between external sides of shelves.
Beams dvutavrovy are applied in large-panel, industrial and civil engineering to overlappings, a columned metalwork, bridge constructions, support and suspended ways.

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