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Fields of application
Hot-rolled wire rod with smooth sections is used for the reinforcement of concrete for elements and structures made of reinforced and pre-compressed concrete. From OB 37 ligatures are formed often, that hold the reinforcing together.
More info
On the surface of the product a thin layer of oxide is allowed, with the condition, that after the cleaning, the resulted thickness must not fall under the allowed minimum. Surface defects are allowed such as: unevenness, scratches, striations or asperities, with the condition that the maximum deepness/height of these not to lead to a diameter or form with limit deviations higher than those mentioned in the product standard.
Wire rod is delivered in bundles or in case of nominal diameters of maximum 12 mm also in coils.
Available size 8 mm – 32 mm

Mechanical properties

OB 37 Re N/mm2 Rm N/mm2 A5 %
255 (d=6-12) 360 25
235 (d=14-40) 360 25

Chemical composition

OB 37 C Si Mn S P Ti or Nb
0,23 0,07 0,75 0,045 0,045

Size (mm) Weight (kg/m)
6 0.22
8 0.40
10 0.62
12 0.89
14 1.21
16 1.58
18 1.99
20 2.46
22 2.98
25 3.85
28 4.84
32 6.31

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