Thread bar for reinforsed concrete

vintovoj-profil3
  • Diameter: 15, 16, 18, 20, 22, 25, 26,5, 32 mm
  • Yield strength, minimum: 500 MPa
  • Tensile strength, minimum: 880 MPa
  • Completed with couplers and nuts

Documentation:

imagen_005 vintovoj-profil-sert0

Basic information:

The thread bars differ from standard rebars by the fact that its protrusions not only serve for adhesion to the concrete, but also form a single thread along the entire length in order to screw fasteners - nuts, couplings, anchor nuts, etc.

Profiled hot-rolled thread bars are made according to own TU 0950-003-83936644-2013.

The thread bars, complete with connecting elements, are used in reinforced concrete structures and in other types of structures (without a concrete structure) in accordance with the requirements of SNiP 2.03.01-84 to the fields of application of reinforcing steel of the appropriate grades and classes in the form of entire bars without welded butt joints.

Technical Data:

Mechanical properties

Rolled metal class

Steel grade

Yield strength, minimum

Tensile strength, minimum

Relative elongation, %

Diameter

Breaking load, kN, minimum

N/mm²

kgf/mm²

N/mm²

kgf/mm²

Av500

76

500

50

883

90

5-14

16,0

160

20,0

250

22,0

300

25,0

390

AVt800

76

800

80

1000

100

8 (minimum)

25,0

491

Nominal diameter, cross-sectional area and mass of the rolled metal of 1m in length

Bar number (nominal diameter dr), mm

 

,Nominal cross-sectional area, mm²

 

Nominal weight of rolled metal with length of 1 m, kg

Maximum deviation, %

16,0

200,0

1,56

±4

20,0

314,0

2,44

±4

22,0

380,0

2,96

±4

25,0

491,0

3,80

±4

Note: the nominal weight of 1 m in length of the rolled metal is determined based on the nominal diameter at a steel density of 7.85 g/cm3

Nominal cross-sectional area, mm2 – the cross-sectional area of the rolling, equal to the cross-sectional area of a round smooth bar of the same nominal diameter.

Chemical elements

Steel grade

Mass fraction of elements,%

Carbon

Manganese

Silicon

Vanadium

Titanium

Zirconium

Sulfur

Phosphorus

maximum

Steel 76

0,74-0,84

0,75-1,25

0,18-0,55

-

-

-

0,045

0,035

Note: the presence of vanadium up to 0.025%, titanium - 0.02% is allowed

© «Tula Metal Rolling Plant», 2018

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