Wire for enforcement of low-carbon ferroconcrete ТТ 28.7-26209430-093:2012
Low-carbon galvanized cold-drawn steel wire of Technical Requirements ТТ 28.7-26209430-093:2012 is used for enforcement of concrete structures. Wire for enforcement of ferroconcrete has die-rolled section and is manufactured from 1,0 to 5,0 mm in diameter.
Supply of ТТ 28.7-26209430-093:2012 wire
Steel galvanized wire of ТТ 28.7-26209430-093:2012 of low-carbon die-rolled section for enforcement of concrete structures is supplied in coils of different diameters.
| Nominal wire diameter, mm | Coil weight, kg | Outer diameter, mm | Inner diameter, mm | Width, mm |
|---|---|---|---|---|
| 2,8 | 500-1000 | up to 750 | 300; 400; 500; 600 | 500±50 |
| 3,0 | ||||
| 3,8 | ||||
| 4,0 | ||||
| 4,7 | ||||
| 5,0 |
| Nom. wire diameter, mm | Nom. size d, mm | Limit deviation in size d, mm | Depth of indentation, h, mm | Limit deviation in depth h, mm | Nom. size of indentation s, m | Limit deviation in step of indentation s, mm | Lip length h, mm | Limit deviation in length of lip h, mm |
|---|---|---|---|---|---|---|---|---|
| 2,8 | 2,8 | +0,02 -0,06 |
0,10 | +0,05 -0,02 |
2,0 | ±0,2 | 0,5 | ±0,2 |
| 3,0 | 3,0 | +0,03 -0,09 |
0,15 | 0,6 | ||||
| 3,8 | 3,8 | +0,04 -0,12 |
0,20 | 2,5 | 0,7 | |||
| 4,0 | 4,0 | 0,8 | ||||||
| 4,7 | 4,7 | +0,05 -0,15 |
0,25 | 3,0 | 1,0 | |||
| 5,0 | 5,0 |
Step of indentation S and fillet radius of indentation surface with lips R are the information values of profiling tool and are not verified on the wire.
| Breaking tension P, kN (kgf), not less | Tension corresponding to proof strength P0,2, kN (kgf), not less | Nip quantity, not less | Stretch ratio σ100, %, not less | |
|---|---|---|---|---|
| 2,8 | 34.0 (334) | 30.5 (299) | 4 | 2,0 |
| 3,0 | 39.0 (398) | 35.0 (343) | ||
| 3,8 | 64.1 (628) | 56.0 (548) | 2,5 | |
| 4,0 | 71.0 (720) | 62.0 (630) | ||
| 4,7 | 93.7 (918) | 85.7 (840) | 3,5 | |
| 5,0 | 106.0 (1083) | 97.0 (955) |