Complaint
Mine steel strand usually is multi wires strand for prestressing , composited with 19 wires , including seale type and warrington type.We produce them strictly in accordance with standards GB/T31314 -2018 , YB/T 4428-2014 , DB 44/T 1504-2014 .
This product could be used for rock and soil anchoring,roadway anchoring / underground mine roof reinforcement .
ADVANTAGES
Steel Strand not only achieves high tensile strength, but also has better plasticity and toughness
USE
-Where can our Mine steel strand be used?
rock and soil anchoring,roadway anchoring / underground mine roof reinforcement .
SPECIFICATIONS
| Structure | Standard | Nominal diameter | Tolerance on Diameter | Nominal Area of Section | Weight of strand | Tensile Strength, Rm | Minimum Breaking load,Fm | 0,2% proof force , Fp0.2 | Elongation Lo=500mm, Agt | Curvative of strand | Lay Length | The Relaxation at 1000h (initial load to 70% of nominal max load ) (r/%) Not more than |
| (mm) | (mm) | (mm2) | (kg/1000m) | (N/mm2) | KN | KN | (%) | mm | mm | |||
| 1*19S | GB/T 5224-2014 | 20.3 | +0.40,-0.15 | 271 | 2149 | 1770 | 480 | 422 | 3.5 | 25 | (12-18)d | 2.5 |
| 1*19S | GB/T 5224-2014 | 20.3 | +0.40,-0.15 | 271 | 2149 | 1810 | 491 | 432 | 3.5 | 25 | (12-18)d | 2.5 |
| 1*19S | GB/T 5224-2014 | 20.3 | +0.40,-0.15 | 271 | 2149 | 1860 | 504 | 444 | 3.5 | 25 | (12-18)d | 2.5 |
| 1*19 | JIS3536 | 20.3 | +0.60,-0.25 | 270.9 | 2149 | 495 | 422 | 3.5 | 25 | (12-18)d | 2.5 |
