| High Abrasion Resistance | Weld-overlay plate with a chromium-rich iron matrix and hard chromium carbides distributed through the deposit. | Overlay hardness commonly about 55–65 HRC; carbide volume fraction often approximately 30–50%, depending on the formulation and test method. | Chutes, hoppers, transfer points, conveyor liners, screens and other components exposed to sliding mineral abrasion. | Hardness test report, chemical analysis, metallographic report and wear-test method. |
| Impact and Abrasion Balance | Composite plate combining a tough carbon-steel backing with a wear-resistant chromium-carbide overlay. | Backing plate commonly selected in structural or pressure-vessel-type steel grades; overlay hardness is typically specified separately from backing hardness. | Mining, quarrying, steel, cement and recycling equipment where sliding wear occurs together with moderate impact. | Base-metal grade certificate, overlay hardness profile, bond or fusion inspection and dimensional report. |
| High-Temperature Wear | Chromium-carbide overlay formulated for elevated-temperature service, with the operating limit determined by the deposit chemistry and backing material. | Product capability must be confirmed at the actual service temperature; room-temperature hardness alone is not sufficient for qualification. | Cement kilns, sinter plants, boilers, incinerators and hot material-handling systems. | Elevated-temperature hardness data, thermal exposure results, service-temperature limit and welding procedure specification. |
| Crack-Controlled Overlay | Overlay engineered with controlled transverse checking or relief cracks to reduce residual-stress concentration in large wear surfaces. | Crack pattern, spacing and allowable crack size should be defined by the product specification; visible checking is not automatically a product defect. | Large liners, crusher discharge areas, chutes and panels requiring broad wear coverage. | Crack inspection procedure, crack-spacing record, surface photographs and acceptance criteria. |
| Cutting and Formability | Plate supplied with cutting guidance suitable for thermal cutting, machining limitations and controlled forming of the backing plate where permitted. | Plasma or abrasive waterjet cutting is commonly preferred for precise profiles; conventional drilling and forming may require special procedures. | Custom liners, replaceable wear parts, curved chutes and fabricated equipment components. | Cutting guide, minimum bend-radius data, hole-making instructions and fabrication procedure. |
| Weldability and Repair | Backing plate generally supports attachment welding, while the hard overlay requires compatible buffer layers and controlled heat input for repair or joining. | Preheating, interpass-temperature control and low-hydrogen consumables may be required according to backing grade, thickness and site conditions. | Field repairs, replacement liners, structural attachment points and maintenance-intensive processing equipment. | Welding procedure specification, recommended consumables, preheat chart and repair-welding instructions. |
| Dimensional and Surface Consistency | Consistent overlay thickness, flatness, plate dimensions and carbide distribution support predictable installation and service life. | Acceptance limits should be agreed for length, width, total thickness, overlay thickness, flatness and local surface discontinuities. | Automated liner fabrication, large-volume projects and applications requiring interchangeable wear components. | Inspection and test plan, dimensional inspection report, overlay-thickness map and surface-quality record. |
| Traceability and Quality Control | Reliable supply is supported by heat or batch traceability, documented inspection stages and clear product identification. | A complete quality package normally links the backing material, overlay batch, inspection results and shipping identification. | Safety-critical maintenance programs, multinational projects and applications with formal procurement controls. | Mill test certificate, certificate of conformity, batch traceability record and third-party inspection report where required. |