Duroxite® 101 consists of a mild steel base that is welded with a layer of highly wear-resistant material, making it ideal for various applications. The hardfacing overlay is designed to endure extreme abrasive wear and impact conditions. With its ideal carbide concentration, Duroxite® 101 offers exceptional wear resistance from the top surface down to 75% of the overlay depth. Coupled with the Hardox® 450 backing plate, it delivers superior wear and impact resistance compared to traditional mild steel-backed overlay plates. This high-performance Abrasion Resistant Plate is specifically engineered to handle demanding working environments.
Key Benefits
Typical Applications
Duroxite® 101 is commonly used across the mining, cement, and power generation sectors. Specific applications include:
Industry | Applications |
Mining | Loader bucket liners, bucket lip and side shrouds, jaw shrouds |
Cement | Heel pads and dewatering conveyors |
Power | Coal discharger chutes |
Metric unit | Imperial unit |
---|---|
1.85 m x 2.85 m | 6.1′ x 9.3′ |
1.2 m x 2.4 m | 4′ x 8′ |
1.5 m x 3.0 m | 5′ x 10′ |
1.8 m x 3.0 m | 6′ x 10′ |
Metric Unit | Imperial Unit |
---|---|
1.2 m x 2.4 m | 4′ x 8′ |
1.4 m x 3.0 m | 4.6′ x 10′ |
1.5 m x 3.0 m | 5′ x 10′ |
1.8 m x 3.0 m | 6′ x 10′ |
2.4 m x 3.0 m | 8′ x 10′ |
Wear properties | ASTM G65 – Procedure A weight loss 2) | |||
---|---|---|---|---|
Number of overlay passes | Typical surface hardness1) (HRC) | Typical surface hardness1) (HV) | Surface (g max) | 75 % depth of overlay 3) (g max) |
Multiple passes | 59 – 64 | 675 – 800 | 0.18 | 0.18 |
1) Surface hardness is measured on machined flat surface just below overlay surface.
2) ASTM G65 – Procedure A weight loss, is a standard test measuring sliding abrasion resistance using a dry sand/rubber wheel apparatus. ASTM G65-Procedure A is the most severe test method.
3) ASTM G65 – Procedure A weight loss, wear test is conducted at 75% depth of the overlay materials to ensure consistently good wear resistance from the top surface through to the depth of 75% of the overlay.
Microstructure
The typical overlay microstructure of Duroxite® 101 consists of a high percentage of very hard primary M7C3 chromium-rich carbides, with a hardness of around 1700 HK, evenly distributed in a ductile eutectic austenite matrix. The volume fraction of primary carbides is kept between 30% and 50%, ensuring an optimal balance of wear resistance and uniform bonding.
*) HK is the Knoop microhardness which is primarily used for very brittle materials.
Tolerances
Thickness
Overall and overlay thickness tolerances are guaranteed to be within ±10% of the specified thickness.
Flatness
Plate flatness tolerance guaranteed over 1.5 m (5′).
Metric unit |
|||
---|---|---|---|
Metric unit | 1.5 m x 3.0 m | 1.8 m x 3.0 m | 2.4 m x 3.0 m |
5 mm on 8 mm | 12 mm | 32 mm | 38 mm |
6 mm on 6 mm | 12 mm | 32 mm | 38 mm |
10 mm on 10 mm | 6 mm | 19 mm | 25 mm |
12 mm on 12 mm | 3 mm | 12 mm | 12 mm |
For custom sizes, please consult your local sales representative or Hardox® Wearparts center for flatness guarantees.
Duroxite® 101 is typically provided in an as-welded condition, but can also be supplied in a ground condition if requested.
Welding, cutting, forming and machining
Recommendations for welding, cutting, forming, and machining are available in the Duroxite® Products brochure or can be obtained by consulting your local technical support representative.
Welding or cutting Duroxite® products generates gases and harmful fumes that are chemically complex and challenging to categorize. The primary toxic component in these fumes is hexavalent chromium. It is recommended to use proper exhaust ventilation systems, fume-extraction torches, and appropriate protective clothing and respiratory protection for operators.