預應力混凝土用螺紋鋼筋 (精軋螺紋鋼) 力學性能要求
強度級別 |
屈服強度/MPa |
抗拉強度/MPa |
斷后延伸率/% |
PSB500 |
≥500 |
≥550 |
≥10 |
PSB785 |
≥785 |
≥980 |
≥7 |
PSB830 |
≥830 |
≥1030 |
≥6 |
PSB930 |
≥930 |
≥1080 |
≥6 |
PSB1080 |
≥1080 |
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