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Hot-rolled ribbed steel bar and manufacturing method and application thereof
The invention discloses a hot-rolled ribbed steel bar and a manufacturing method and application thereof, and relates to the technical field of hot-rolled ribbed steel bars. The hot-rolled ribbed steel bar comprises the following chemical components: 0.20 to 0.25 weight percent of C, 0.25 to 0.60 weight percent of Si, 1.0 to 1.3 weight percent of Mn, less than or equal to 0.035 weight percent of S, less than or equal to 0.035 weight percent of P, 0.03 to 0.07 weight percent of V, 0.008 to 0.025 weight percent of Nb and the balance of Fe and inevitable impurities. The manufacturing method comprises the following steps: heating a steel billet containing the chemical components, carrying out hot rolling, and rapidly cooling to obtain the hot-rolled ribbed steel bar. The heating temperature ranges from 960 DEG C to 1050 DEG C; and the initial rolling temperature of the hot rolling is 940-1030 DEG C. The hot-rolled ribbed steel bar obtained through the manufacturing method is high in grain size level and strength and has excellent cold bending performance and appearance quality.
本发明公开了一种热轧带肋钢筋及其制造方法与应用，涉及热轧带肋钢筋技术领域。所述热轧带肋钢筋包括以下化学成分：C：0.20～0.25wt％，Si：0.25～0.60wt％，Mn：1.0～1.3wt％，S:≤0.035wt％，P:≤0.035wt％，V:0.03～0.07wt％，Nb：0.008～0.025wt％，其余为Fe和不可避免的杂质；其制造方法包括以下步骤：将含前述化学成分的钢坯加热后进行热轧、快速冷却后得到热轧带肋钢筋；所述加热温度为960～1050℃；所述热轧的开轧温度为940～1030℃。本发明的制造方法得到的热轧带肋钢筋晶粒度级别和强度均比较高，具有优良的冷弯性能和外观质量。
Hot-rolled ribbed steel bar and manufacturing method and application thereof
The invention discloses a hot-rolled ribbed steel bar and a manufacturing method and application thereof, and relates to the technical field of hot-rolled ribbed steel bars. The hot-rolled ribbed steel bar comprises the following chemical components: 0.20 to 0.25 weight percent of C, 0.25 to 0.60 weight percent of Si, 1.0 to 1.3 weight percent of Mn, less than or equal to 0.035 weight percent of S, less than or equal to 0.035 weight percent of P, 0.03 to 0.07 weight percent of V, 0.008 to 0.025 weight percent of Nb and the balance of Fe and inevitable impurities. The manufacturing method comprises the following steps: heating a steel billet containing the chemical components, carrying out hot rolling, and rapidly cooling to obtain the hot-rolled ribbed steel bar. The heating temperature ranges from 960 DEG C to 1050 DEG C; and the initial rolling temperature of the hot rolling is 940-1030 DEG C. The hot-rolled ribbed steel bar obtained through the manufacturing method is high in grain size level and strength and has excellent cold bending performance and appearance quality.
本发明公开了一种热轧带肋钢筋及其制造方法与应用，涉及热轧带肋钢筋技术领域。所述热轧带肋钢筋包括以下化学成分：C：0.20～0.25wt％，Si：0.25～0.60wt％，Mn：1.0～1.3wt％，S:≤0.035wt％，P:≤0.035wt％，V:0.03～0.07wt％，Nb：0.008～0.025wt％，其余为Fe和不可避免的杂质；其制造方法包括以下步骤：将含前述化学成分的钢坯加热后进行热轧、快速冷却后得到热轧带肋钢筋；所述加热温度为960～1050℃；所述热轧的开轧温度为940～1030℃。本发明的制造方法得到的热轧带肋钢筋晶粒度级别和强度均比较高，具有优良的冷弯性能和外观质量。
Hot-rolled ribbed steel bar and manufacturing method and application thereof
一种热轧带肋钢筋及其制造方法与应用
WU HAOHONG (author) / LIANG LIANG (author) / ZHANG SHUNKAI (author) / WANG HONGBING (author) / SHU CHUNYANG (author) / GUO HUANGXUN (author) / LI GUOCANG (author) / LIU XUHUI (author) / LUO GANG (author) / LIU NING (author)
2024-10-11
Patent
Electronic Resource
Chinese
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