8th March 2020, this project resume construction, site staffs work in protective hat, masks, suits. Everyone pays attention on self security during COVID-19 epedumic.
Anyang Longteng Heat Treatment Material Co.,Ltd is the subcontractor for WTG foundation anchor bolt systerm in 200MW YUANQU wind farm project, Shanxi Province, providing M42*4140 grade 8.8 prestressed ground anchor bolt assembly for 100 turbines.
PRESTRESSED ANCHOR BOLT
| 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: May-22-2020