PSB830 Cold-rolled Threaded Steel 32MM
Revision Content and Purpose of the New National Standard. From the changes in the 2018 steel reinforcement new standard, it mainly includes: 1) Adding provisions for smelting methods, i.e., steel should be smelted in a converter or an electric arc furnace, with secondary refining allowed as necessary; 2) Adjusting strength grades, eliminating 335MPa*** reinforcement and adding 600MPa*** reinforcement, forming a series of strength grades at 400MPa, 500MPa, and 600MPa, with PSB1080 anti-floating anchor bolts priced low, and adding reinforcement grades with "E" for seismic resistance; 3) Appropriate tightening of tolerances, with stricter allowances for length, bend, and weight tolerances, clearly stating that weight tolerances are not subject to re-inspection, and tightening the provisions for size and weight tolerances while explicitly stating that weight tolerances are not subject to re-inspection; 4) Adding relevant inspection methods, including the addition of microstructure inspection provisions and accompanying macroscopic microstructure, cross-sectional Vickers hardness, and microstructure inspection methods; and adding requirements for microstructure inspection and their corresponding inspection methods.
Main applications of cold-rolled threaded steel
In conventional metal materials, you'll commonly see ribbed, hot-rolled threaded bar steel reinforcement. Due to its vertical longitudinal rib, it requires threading the bar ends before forming the thread, and then using a sleeve connector to assemble. In the specialized reinforcement field, for PSB1080 anti-float anchor bolts, the hot-rolled threaded steel doesn't need to be threaded. Thanks to its continuous thread, it can be directly connected with a specialized hot-rolled threaded steel connector. This method is applicable for anchor bolts, without affecting their load-bearing and anchoring properties.
Graded ribbed rebar floating anchor rods are crucial construction control points in underground engineering. They are vital to the overall construction quality of the basement. During the design process, professionals typically use standard rebars as anchors. To achieve the design value of the foundation bolts, it is common to place two or more standard steel foundation bolts in a single bolt hole. As a result, even though standard rebars are not effective in ensuring construction quality, PSB1080 floating anchor rods have good quality, which also results in cost waste. After optimizing the design drawings and adopting the principle of strength substitution, a more scarce graded ribbed rebar (with a tensile strength design value of 10N/mm2) has been used to replace the original standard rebars. This not only improves construction quality but also reduces economic costs.
PSB1080 Anti-Floating Anchor Bolt Customization - Anti-Floating Anchor Bolt - Jiangsu Zhongzhen Special Steel Co., Ltd. Strive for the future, forge ahead. Jiangsu Zhongzhen Special Steel Co., Ltd. is committed to becoming a strategic partner for win-win, co-existence, and joint progress with you, and is also determined to become a competitive enterprise in metal building materials. Let's soar together and achieve success!
