| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | SJT |
| Model Number: | psb |
| usage: | for prestressing |
| technique: | hot rolled |
| surface treatment: | normal/oil/epoxy coated/galvanize coat |
| standard: | PSB500 PSB550 PSB 1080 |
Quick Details
Specifications
Full Screw Thread Steel Bars for prestress and Acessories
1.Commodity: Rock Bolt for the Prestressing of Concrete
2.Grade: PSB785,PSB830,PSB930,PSB1080
3.Material:40Si2MnV
4.Length:6m-12m
5.Diameter: 15mm,18mm,25mm,32mm,40mm,50mm
6.Packing: In bundle
we can provide the sperical nut, anchor nut and anchor plate square accordingly.
Contacter: christopher
Email: sales12_sjtAT
Skype: chiritopher.zhu13
Phone: 86-22-23462770-618
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Steel Grade |
Yield Strength |
Tensile Strength |
Elongation |
Uniform Elongation |
Stress Relaxation |
||
|
Mpa |
Mpa |
Original Stress |
Relaxation Rate After 1000h |
Relaxation Rate After 10h |
|||
|
PSB500 |
≥500 |
≥630 |
≥10% |
|
|
≤3% |
≤1.5% |
|
PSB785 |
≥785 |
≥980 |
≥7% |
≥3.5% |
0.8R |
≤3% |
|
|
PSB830 |
≥830 |
≥1030 |
≥6% |
||||
|
PSB930 |
≥930 |
≥1080 |
≥6% |
||||
|
PSB1080 |
≥1080 |
≥1230 |
≥6% |
≥2.5% |
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