发布时间:2025-01-31 05:26:33
1、HRB400是热轧带肋钢筋、三级螺纹钢,H、R、B 分别为热轧(Hotrolled)、带肋(Ribbed)、钢筋(Bars)三个词的英文首位字母,400是屈服强度。
2、热轧是相对于冷轧而言的,冷轧是在再结晶温度以下进行的轧制,而热轧就是在再结晶温度以上进行的轧制。
3、带肋简单的说就是有螺纹的钢筋,表面轧制成具有三面或两面月牙形横肋的钢筋。
4、屈服强度是材料开始发生明显塑性变形时的最低应力值,亦即抵抗微量塑性变形的应力。
离婚析产取得房屋现要将该房屋转让给他人应如何确定购房时间是否满五年
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