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Steel Strand for Prestressed Concrete（9.3-21.8MM）
1. Material: High carbon steel wire rod SWRH77B, SWRH82B
2. Structure: 1*3, 1*7
3. Standards: Astma416, BS5896, EN10138-3, AS/NZS4672, GB/T5224
4. Diameter:
5. Tensile strength:
6. Coil weight: 2-3.5/ton. 7. Elongation at maximum load: not less than 3.5%
8. Elongation rate: not less than 3.5%
9. Initial load: not greater than 70%
10. Relaxation rate (1000 hours): 2.5%
11. Raw material: SWRH77B/82B wire
12. Transportation: 10-15 working days
Mainly used for manufacturing prestressed concrete components using various tensioning processes, such as large railway and highway bridge roof trusses, crane beams, industrial and civil precast concrete panels, wall panels, prestressed concrete television stations, nuclear power plants, etc.
