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High Strength threaded Bar

Classification：

High Strength threaded Bar

key word：

Cable

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  • DESCRIPTION

  • As a kind of pre-stressing structural steel bar with the advantages of high strength, low relaxation rate, good welding performance, convenient and reliable connection, easy tensioning construction, etc., the high-strength rebar is widely used in the construction of large-scale water conservancy projects, continuous beams and large-scale frame structures in industrial and civil buildings, large-span bridges of highways and railroads, nuclear power plants and suspension bridges with the main cables in ground anchors, etc., as well as in the construction and anchoring of the rock body.

    Diameter: Φ28~Φ100mm

    Strength grade: PSB930~PSB1080

    Reference standard:

    GB/T20065-2016 Threaded steel bars for prestressed concrete

    High-strength prestressing rebar is divided into levels by yield strength, and its code is "PSB" plus the minimum value of yield strength, P, S, B are the first letters of Prestressing, Scres-thread, Bars, etc. For example, PSB830 indicates that the standard value of yield strength is 830MPa. For example: PSB830 indicates that the standard value of yield strength is 830MPa rebar.

    Mechanical Properties of High Strength Prestressed Rebar

    level Yield strength Yield Strength
    Rp0.2
    Mpa    		 Tensile strength Tensile strength
    Rm
    Mpa    		 Severed elongation Rate
    A %    		 Maximum force Total elongation
    Agt %    		 Stress relaxation properties
    Not less than Initial stress Stress after 1000h
    Relaxation rate Vr/%
    PSB785
    785
    980
    8
    3.5
    0.8Rp0.2
    ≤4.0
    PSB830
    830
    1030
    7
    PSB930
    930
    1080
    7
    PSB1080
    1080
    1230
    6

    High Strength Prestressed Rebar Size

    Base circle diameter D
    mm    		 Thread height h 
    mm    		 Thread bottom width b 
    mm    		 Pitch l 
    mm
    65
    3
    12
    22
    70
    3
    12
    22
    75
    3
    12
    22
    80
    3.5
    12
    		 24
    85
    3.5
    12
    		 24
    90
    3.5
    12
    		 24
    95
    3.5
    12
    		 24
    100
    3.5
    12
    		 24
    110
    3.5
    12
    		 24
    120
    3.5
    		 12 24
    130
    3.5
    		 12 24

    Note: Special customization is available upon request.

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