WHY HOT ROLLED FULLY THREAD REBARS ARE NOT CONTINUOUSLY THREADED
Fully thread rebars are widely used for pre-stressing and post-tesnioning purposes.
The reason why it’s chosen is, despite its high mechanical properties, but also because it can fit a nut directly without screw a new thread.
But Why these threads are not continuous?
As we all know, threads can be cut, cold-rolled, and cast. These hot-rolled pre-stressing rebars are cast by modules. During production, there are two modules cover the rod body, then the thread shape. So there are always a gap that haven’t been covered. So this is why the thread is not continuous on hot-rolled fully thread rebars. But don’t worry, the nuts can still fastened well enough.
Rolling Method: Hot rolled, Heat-treated
Grade: PSB500, PSB780, PSB830, PSB930, PSB1080
Standard: KSD3504, JIS3112,CAN/CSAG30.18-M92,BS4449-1998,ASTM615/706, DIN488-1
Recommended article:Studded T Post: The Versatile Solution for Secure Fencing
Steel Warehouse Buildings: A Comprehensive Guide to Optimize Your Investment
How does the Geotube technology work to contain and stabilize soil and other materials?
What is WPC board used for?
How to design a corrugated metal pipe culvert?
Exterior Wall Reinforcement: How Alkali Resistant Fiberglass Mesh Boosts Stucco Durability
Unleash Your Creativity with Vitreous Glass Mosaics: A World of Color and Artistry
Diameter: regular 15, 20, 25, 28, 32, 36, 40, 50 mm or as customer’s demands
Length: As customer’s demands
Yield strength: 500/780/830/930/1080 MPa
Tensile strength: 630/980/1030/1080/1230 Mpa
Accessories: Full force hex nut, dome washer, bearing plate, coupler, nylon nut
Place of origin: China
Application: Mining, tunneling, construction,slope stabilization
Supply ability: 500 Tons per month
Steel Grade | Yield Strength MPa | Tensile Strength MPa | Elongation after Fragure A% | uniform Elongation Agt% | Stress Relaxation | |
Original Stress | Relaxation rate after 1000h r/% | |||||
PSB500 | ≥500 | ≥630 | ≥10 | ≥2.5 | – | ≤3 |
PSB780 | ≥780 | ≥980 | ≥7 | ≥3.5 | 0.8R | ≤3 |
PSB830 | ≥830 | ≥1030 | ≥6 | ≥3.5 | 0.8R | ≤3 |
PSB930 | ≥930 | ≥1080 | ≥6 | ≥3.5 | 0.8R | ≤3 |
PSB1080 | ≥1080 | ≥1230 | ≥6 | – | 0.8R | ≤3 |
More details please click here
Recommended article:What are the advantages of aluminum sliding doors?
How to Maintain and Extend the Lifespan of Your FRP Tank
How to Install Alkali-Resistant Fiberglass Mesh for Tile Backsplash?
What is the advantage of steel roof truss?
What Types of Structures Benefit from Post-Tensioning?
Basic Types of Steel Building Structure
What is the use of Scaffolding Base Jack?