Guangdong Gonmo New Material Technology Development Co., Ltd.
Composite wear-resistant steel
A specialized steel manufacturer. We only make steel grades with qualities that are fine-tuned to make applications stronger, lighter, safer, easier to produce, more long-lasting, fuel efficient and sustainable – all depending on what’s highest on the users’ list of priorities.
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Normal Size
| Product | Normal Size (Length × Width) | Normal Thickness (Base + Wear Layer in mm) |
| Composite wear-resistant |
3.0 m × 1.4 m 3.5 m × 1.4 m |
3+3, 4+4, 6+4, 6+6, 8+4, 8+6, 8+8, 10+4, 10+5, 10+6, 10+8, 10+10, 12.5+12.5, 15+15 |
Composite wear-resistant steel is a type of bimetallic composite special steel. It is manufactured via metallurgical bonding processes (such as surfacing welding and hot-rolled cladding) by combining a low-carbon steel base plate (ensuring toughness, weldability and formability) with a high-hardness wear-resistant alloy layer (providing wear resistance).
Thickness dimensions represent: base plate (carrying layer) + wear-resistant layer, e.g. 3+3, 4+4 6+4 etc.
Normal Size
Composite wear-resistant plate
Model
| Model | Wear-resistant layer C content (%) | Cr & Et (%) | Volume fraction of Cr7C3 carbide | Hardness HRC |
| Laser-welded composite wear-resistant plate | 3–5.5 | 27–45 | 50% | 58–63 |
| Thickness (mm) | Wear layer thickness (mm) | Dimensions (mm) |
| 3–20 | 3–15 | 1500×3000 (2000×3000) |
Description
Wear-resistant composite steel plates, also known as bimetallic clad wear-resistant composite steel plates, are manufactured by overlay welding a wear-resistant alloy layer of a certain thickness—with high hardness and excellent wear resistance—onto the surface of ordinary low-carbon steel or low-alloy steel. They are suitable for working conditions with large-area wear.
Composite wear-resistant plate (microcracks)
Model
| Model | Wear-resistant layer C content (%) | Cr & Et (%) | Volume fraction of Cr7C3 carbide | Hardness HRC |
| Plasma surfacing composite wear-resistant plate | 3–5.5 | 27–45 | 40% | 55–61 |
| Thickness (mm) | Wear layer thickness (mm) | Dimensions (mm) |
| 3–20 | 3–15 | 1500×3000 (2000×3000) |
Description
The wear-resistant layer and the base layer of the composite steel plate achieve full metallurgical bonding, forming an integral structure. The wear-resistant layer features uniform thickness and a flat surface, with the flatness of the entire plate comparable to that of ordinary carbon steel plates. Stress relief cracks exist on the surface of the wear-resistant layer—these cracks are confined exclusively to the overlay welding layer and do not extend into the base layer. Such stress relief cracks can significantly reduce residual stress and deformation induced in the base layer during the overlay welding process, thereby avoiding a reduction in the base layer's strength and having no impact on the service performance of the wear-resistant plate.
The main composition of the wear-resistant layer is high-carbon and high-chromium alloy. Depending on the specific requirements and service conditions of different users, the high-temperature-resistant wear-resistant plates may also contain additional alloying elements such as Mo, W, V, B, Nb, and Ti. The metallographic structure of the wear-resistant layer consists of eutectic + M7C3 primary carbides or complex carbides, enabling excellent wear resistance under various working conditions, including room temperature, high temperature, high impact, medium impact, and low-stress impact environments.
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