| Customization: | Available |
|---|---|
| Connection: | Female |
| Structure: | Universal |
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Prestressing screw bars are rolled externally threaded in large diameter, high strength, high dimensional accuracy of straight bars. The bars can be connected at any cross section though coupling or screwed anchored.Prestressing screw bars are widely used in large-scale water conservancy projects, industrial and civil construction of continuous beam and large frame structure, roads, railways and middle bridges, nuclear power plants and other projects anchor. It is easy for connection, the anchor is simple, strong adhesion, tension anchor is safe, reliable, easy using, etc., and also saving steel, reducing component size and weight.
Coupler is mainly a cylindrical part, and there will be this type of part in many machinery, there are threads at both ends of the connector, and the threads at both ends also have a great role, and the thread is needed in the connection process. It will be used in buildings, when the steel bar connection in heavy buildings will need to this connector, its compression resistance is very good, and the connection performance is also very good, used in a variety of foundation pit anchoring, railways, municipal construction, Bridges, geotechnical, highway, slope anchoring and other fields.
| Steel Grade | Yield Strength Mpa |
Tensile Strength Mpa |
Elongation at Failure A% | Uniform elongtion Agt% | Stress Relaxation | |
| Original Stress |
Relaxation rate after 1000h r/% | |||||
| PSB500 | ≥500 | ≥500 | ≥10 | ≥3.5 | 0.7Rm | ≤4.0 |
| PSB785 | ≥785 | ≥980 | ≥8 | ≥3.5 | 0.7Rm | ≤4.0 |
| PSB830 | ≥830 | ≥1030 | ≥7 | ≥3.5 | 0.7Rm | ≤4.0 |
| PSB930 | ≥930 | ≥1080 | ≥7 | ≥3.5 | 0.7Rm | ≤4.0 |
| PSB1080 | ≥1080 | ≥1230 | ≥6 | ≥3.5 | 0.7Rm | ≤4.0 |
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