精轧螺纹钢抗拉强度
强度级别 屈服强度/MPa 抗拉强度/MPa 断后延伸率/%
PSB500 ≥500 ≥630 ≥10
PSB785 ≥785 ≥980 ≥7
PSB830 ≥830 ≥1030 ≥6
PSB930 ≥930 ≥1080 ≥6
PSB1080 ≥1080 ≥1230 ≥6
