50+ years of experience with providing wide area of specialty product services
Duroxite® AP Electrode
Hardfacing Electrode, Wear-Resistant Electrode, Flux-Cored Electrode, Electrode for Welding, Abrasion-Resistant Electrode, High-Performance Electrode, Impact-Resistant Electrode, Electrode for Metal-to-Metal Wear, Overlay Electrode, Electrode for Hardfacing Applications
Duroxite® AP Electrode is a solid cored electrode designed for parts exposed to metal-to-metal wear, metal-to-earth wear, impact and high-abrasion conditions. This hardfacing electrode has an extruded coating with alloy constituents, which gives good impact and abrasion resistance. While the deposits are forgable, they require special tools for machining.Duroxite® AP Electrode offers excellent weldability and can be applied in all positions. It serves as a wear-resistant electrode ideal for a wide range of challenging applications.
Duroxite® AP Electrode is compatible with carbon, low alloy, manganese steels and other steel substrates. This flux-cored electrode is suitable for both single and multiple-layer deposits, up to three layers. Preheating, interpass temperature, and post-weld heat treatment should be applied based on the base metal’s recommendations. For welding in downhill or uphill positions, it is recommended to use a reduced feed speed and current. As a high-performance electrode, it delivers outstanding durability for demanding applications.
Key Benefits
- Duroxite® AP Electrode is a hardfacing electrode suitable for welding in all positions.
- The deposited overlay consists of medium alloy martensite, providing excellent abrasion and impact resistance, making it an ideal abrasion-resistant electrode.
- Duroxite® AP Electrode is also highly impact-resistant, making it perfect for components exposed to severe wear.
Typical Applications
Duroxite® AP Electrode is widely used in applications that experience moderate to high impact and severe abrasion. Typical examples include bucket teeth, tillage tools, bucket lips, bucket sides, cutting edges, sand dredge equipment, dragline buckets, conveyor chutes, grizzly bars, screw flights, metal shredders, sliding metal parts, tyre shredder knives, extruder screws, tamper feet, churn drills, and muller tyres. This electrode for welding is particularly well-suited for all-position welding and for restoring hardfacing sealing runs on clad wear plate fabrications. It is an ideal choice for hardfacing applications.
Standard Dimensions
| Standard diameter Metric |
|---|
| 4.0 mm |
Mechanical Properties
| Typical all-weld metal surface Hardness 1) | |
|---|---|
| Hardness: 2-layer deposit on mild steel | Hardness: 3-layer deposit on mild steel |
| 55 – 60 HRC | 55 – 60 HRC |
1) Surface hardness is measured on machined flat surface just below overlay surface.
Test results for mechanical properties
Test results for mechanical properties, deposit overlay chemical composition, surface hardness, and ASTM G65-A weight loss were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, substrate chemistry and working temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended applications.
Chemical Composition
| Typical all-weld metal analysis (Weight %) | |||||
|---|---|---|---|---|---|
| C (%) |
Mn (%) |
Si (%) |
Cr (%) |
Mo (%) |
Fe |
| 0.5 | 0.6 | 0.6 | 5.2 | 1.3 | Balance |
Welding recommendations
| Welding conditions | |
|---|---|
| Current type | Welding positions |
| DCEP (Direct current electrode positive) | All Positions including flat, horizontal, vertical, overhead |
Welding parameters recommendations
| Diameter | Amperage (A) | |
|---|---|---|
| Metric | Range | Optimum |
| 4.0 mm / 0.1562 mm | 140 – 220 | 170 |
Delivery Conditions
| Standard package | Diameter | Weight |
|---|---|---|
| Type | Metric | Metric |
| Box | 4.0 mm / 0.1562 mm | 20 kg |
Fabrication and Other Recommendations
Welded overlay components can be processed through welding, cutting, forming, and machining. For detailed recommendations, refer to the Duroxite® Product brochure or consult your local technical support representative.
Safety precautions
Welding or cutting Duroxite® products generates gases and harmful fumes that are chemically complex and challenging to classify with hexavalent chromium being the primary toxic component. It is essential to use proper exhaust ventilation systems and fume-extraction torches, along with appropriate protective clothing and respiratory protection for operators. This electrode for metal-to-metal wear must be handled with the necessary safety precautions to protect the health of the operator.