Rock bolt assemblies are widely applied for WTG foundation system, contraction steel strecuture, pre-stress, post-tension applications.
STANDARD: ISO 898-1 ; GB/T 3098-1; associated
COMPONENTS: anchor rod, anchor ring assembly, nut, washer, PVC protective pipe, thread protective cap, heat-shrink tube, grease, etc……
ADVANTAGE:
Good performance:Excellent anti-delay fracture performance and long lifespan.
Fatigue test: No damage after 12 million times test.
MECHANICAL PROPERTIES:
| Grade | Dia | Tensile Strength Rm/MPa |
2% Elongation Limit RP 0.2/MPa |
Stress Under Proof Load SPf/MPa |
Elongation after fracture A/% |
Reduction oF Area after Fracture Z/% | Rockwell Hardness /HRC |
Bolt Length mm |
-40 ℃ Impact Absorb Energy K/J |
|
| min | max | max | ||||||||
| 8.8 | M16 ~M56 |
830 | 660 | 600 | 12 | 52 | 23 | 34 | 12000 | 27 |
| 9.8 | 900 | 720 | 650 | 10 | 48 | 28 | 37 | |||
| 10.9 | 1040 | 940 | 830 | 9 | 48 | 32 | 39 | |||
| 12.9 | 1220 | 1100 | 970 | 8 | 44 | 39 | 44 | |||
Post time: Aug-20-2020