Duplex Coating Rock Bolt
- Size:R32N
- Ultimate Tensile Strength (KN):280
- Yield Strength (KN):230
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Introduction
(1) Introduction:
The duplex coating rock bolt adopts two corrosion-prevention measurements on the bolt surface, hot-dip galvanizing and epoxy coating which can prevent corrosion very well. It is mainly used in conditions which are inflenced by underground water such as road, railway, water conservancy project, subsea tunnel, etc.
(2) Specifications:
The duplex coating rock bolt adopts two corrosion-prevention measurements on the bolt surface, hot-dip galvanizing and epoxy coating which can prevent corrosion very well. It is mainly used in conditions which are inflenced by underground water such as road, railway, water conservancy project, subsea tunnel, etc.
(2) Specifications:
| Size | Ultimate Tensile Strength (KN) | Yield Strength (KN) |
Hot-dip galvanized zinc coating thickness(μm) |
Epoxy Layer Thickness （μm） | Excecutive Standard |
| R32N | 280 | 230 | ≥70 | ≥60 | 1.Hot-dip galvanizing: ISO1461 2. Epoxy Layer: ISO1519 |
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