Prestressingscrew 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.
| 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 |
Product And Factory Display
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q5:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q6:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Q7:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q8: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q9:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q10:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q11:What is your working time?
A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.
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