Mine and tunnel rock bolt, anchor bolt

Short Description:

LEFT AND RIGHT SIDED REINFORCED THREAD ANCHOR BOLT ANCHOR BAR  FOR MINING ROOF SUPPORT Twisted Steel, shim,plate, Nut, Ball Pad MECHANICAL PROPERTIES                                                                                                                                                  Steel Grade Yield Strength Tensile Strength Elongation After Fracture Elongation under Max Force Impact Absorb Energy Rel/MPa Rm/MPa A/% Agt/% kv2/J NOT LESS THAN Industrial Standard MG33...


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Product Tags

LEFT AND RIGHT SIDED REINFORCED THREAD ANCHOR BOLT ANCHOR BAR  FOR MINING ROOF SUPPORT

HTB1y2shqYwTMeJjSszf760btFXaK Twisted Steel, shim,plate, Nut, Ball Pad

MECHANICAL PROPERTIES                                                                                                                                                 

Steel Grade Yield Strength Tensile Strength Elongation After Fracture Elongation under Max Force Impact Absorb Energy
Rel/MPa Rm/MPa A/% Agt/% kv2/J
NOT LESS THAN
Industrial Standard MG335/MG400 335 500 15 40
MG500 500 700 22 100
Our company Standard 600 600 750 19 9 90
700 700 850 17 7.5 80
785 785 930 16 5.5 60
830 830 1030 15 4.5 50

 

GENERAL DIMENSION                                                                                                                                                          

 

Suface Type Nominal DiameterDn/mm Nominal Cross SectionSn/m㎡ Weight per meterg/m Top strength levelMPa
Levorotation, no longitudinal rib 16 201.06 1578 800
Levorotation, no longitudinal rib 18 254.47 1998 800/1080
Levorotation, no longitudinal rib 20 314.16 2466 800
Levorotation, no longitudinal rib 22 380.13 2984 800
Levorotation, no longitudinal rib 25 490.88 3853 800/1080
Levorotation, no longitudinal rib 28 615.75 4834 800
Levorotation, no longitudinal rib 32 804.25 6313 800/1080

 

PRODUCTION PROCESS                                                                                                                                                        

1. 600MPa ~ 700MPa Raw material — Heat Treatment — Mechanical Property Test — Sawing/Cutting — Reduce diameter — Screw thread — Test — Packaging — Stock in 2. 335MPa ~ 500MPa Raw Material — Reduce diameter — Screw thread — Test — Packaging — Stock in

APPLICATION                                                                                                                                                                             

General introduction: High Strength Dn16mm Anchor Bolt Our rock bolt is an advanced rock bolt which can ensure the anchoring effect for complex ground conditions ranging from sand and gravel to inconsistent fill, boulders, rubble and weathered rock, as well as through footings and base slabs. It is particularly applied in the following geological conditions, such as weathered rock, gravel layer, back fill, hard conglomerate, etc. Rock anchor can be integrated with the functions of drilling, grouting and anchoring to provide higher bonding stress than smooth steel pipe depending on continuous wave thread. It is extensive applied in all kinds of constructions, such as railway system, metro project and infrastructure development. And It is widely used in tunneling, mining, slope stabilization and foundation support. Rock bolt including deformed steel bar bolt and round steel bar bolt. What’s more deformed steel bar could including full thread bar anchor rock bolt and it could be divided into left handed thread bolt and right handed thread bolt.


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