Changshu Longteng Special Steel Co., Ltd.
LONGTENG WELDING CONSUMABLES WELDING THE GLOBAL
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PC STEEL BAR PRESTRESSED CONCRETE STEEL BAR
1, Technical parameters of PC BAR
| Size(mm) | Surface Shape Type | Nominal steel area (S/mm2) | Tensile Strength (Mpa) | Yield Stress (Mpa) | Relaxation rate (%) | Elongation (%) |
| 7.1/7.4 | Spiral Groove | 39-41.7 | ≥1420 | ≥1280 | ≤2.0 | ≥7.0 |
| 9.0/9.2 | 62.4-66.5 | |||||
| 10.7/11 | 87.5-93.6 | |||||
| 12.6/13 | 121.5-129.9 |
2, Chemical composition (%) of PC BAR –Material 30MnSi
| C | Si | Mn | P(Max) | S(Max) | Cu(Max) |
| 0.28-0.33 | 0.60-0.90 | 0.90-1.30 | 0.03 | 0.035 | 0.3 |
3, Application : Concrete plie
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