Runxing RX-m Series specifically engineered for heavy-duty mining and cement chute liners. Exhibits extreme resistance to severe abrasion.
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Precision-manufactured overlay plates with uniform wear patterns and minimal dilution rates. Highly customizable dimensions.
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Bimetallic wear-resistant composite steel plate featuring a structural steel backing bonded with a hard carbide surfacing layer.
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Wholesale-grade hardfacing materials designed to prolong processing machinery lifespan under intense friction environments.
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Self-shielded open arc welding wire engineered specifically for onsite rebuilding and heavy structural hardfacing projects.
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Premium composite material compliant with DIN 8555 standards. Features structural steel backing with proprietary hard surfacing.
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Specialized alloy designed to combat high stress grinding abrasion with low impact, optimized for overlay plate cladding.
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High-chromium self-shielded cored wires formulated for maximum alloy recovery and clean weld pool control.
Learn MoreIndustrial wear protection is defined by a material’s capacity to withstand severe friction, impact, and particle erosion. Chromium Carbide Overlay (CCO) has established itself as the global industry benchmark. Metallurgically, a premium CCO plate relies on a hypereutectic microstructure containing a high density of primary M7C3 chromium carbides embedded in a resilient, supportive austenitic matrix.
These hexagonal-shaped M7C3 carbides possess a typical microhardness of 1200 to 1600 HV (Vickers), equivalent to 70–80 HRC. The matrix itself generally rates between 55 and 62 HRC. This structural variance allows the material to yield local ductility under external stress while maintaining exceptional resistance to abrasion.
By optimizing the ratio of carbon and chromium, Runxing Machinery manufactures overlay plates with a high primary carbide volume fraction (typically between 30% and 45%). This formulation directly prevents micro-plowing and abrasive gouging in critical sectors like bulk material handling and milling.
| Substrate Base Grade | Overlay Layer Thickness | Chromium (Cr) content % | Carbon (C) content % | Overall Hardness Range | Typical Applications |
|---|---|---|---|---|---|
| Q235B / A36 / SS400 | 4mm to 6mm | 22% - 30% | 3.5% - 5.0% | 58 - 62 HRC | Chute Liners, Fan Blades, Hoppers |
| Q355B / S355 | 6mm to 10mm | 25% - 32% | 4.0% - 5.5% | 60 - 64 HRC | Cement Grinding Rolls, Mining Liners |
| Hardox / Heat-Resistant Steel | 8mm to 12mm+ | 28% - 35% | 4.5% - 6.0% | 62 - 67 HRC | Blast Furnace Tops, Steel Slag Chutes |
Heavy industrial operators in regions like North America, Western Europe, Australia, and South America face mounting operational costs due to mechanical wear. The global market size of wear-resistant coatings and cladding materials continues to expand rapidly as companies transition from reactive maintenance cycles to planned life-cycle extensions. Modern plants assess materials using "Cost per Ton of Throughput" rather than initial purchase costs.
In Russia and Central Asia, the extreme climates demand CCO solutions that can withstand thermal fluctuations without structural delamination. The development of deep-pit mines in South America and heavy quarrying in Australia requires CCO plates that offer localized wear profiles. Our export division, Hebei Yuwan International Trade Co., Ltd., handles overseas compliance, logistics, and supply chain logistics to guarantee lead times for mining concessions and steel consortiums globally.
Seamless customs clearance, document management, and international freight options through Yuwan Trade.
Proven to increase hardware operational life by 300% to 800% compared to typical structural steels.
Six consecutive years as a certified VAUTID partner, integrating premier welding materials and specifications.
Founded in 2010 in Tangshan, Hebei Province—the heartland of China's heavy industrial and metallurgical raw materials supply chain—Runxing Machinery is a professional manufacturer focused on the R&D, production, and on-site engineering service of hardfacing wear-resistant metal products. Over more than a decade, the enterprise has developed an integration of manufacturing expertise and localized field application insight.
Our catalog is anchored by chromium carbide overlay (CCO) wear plates, customized processed wear liners, wear-resistant pipes, hardfacing flux-cored welding wires, automatic hardfacing welding machines, and specialized industrial roller surfacing repair services. We strictly implement the business core of "Integrity, Superior Quality, Innovation & Sustainable Development", supported by advanced metal surface hardfacing equipment.
With fully authorized export workflows routed through Hebei Yuwan International Trade Co., Ltd., we deliver engineered wear protection directly from the factory floor to heavy industrial plants globally, optimizing quality control and delivery schedules.
Purchasing teams seeking customized ODM CCO plates benefit significantly from the manufacturing ecosystem centered in Tangshan. Our specialized facilities achieve high precision and throughput through:
Automated numerical control systems powering four welding heads operating independently or in synchronization, ensuring thermal balance across the plate.
Direct access to locally sourced high-grade chromium, wire coils, and structural steel substrates lowers production costs and lead times.
Equipped with high-precision plasma cutting, CNC press brakes, rolling, and automated bolt hole chamfering to produce install-ready liners.
Critical raw material conveyors, chute liners, hopper guides, and separator fan blades demand wear solutions that prevent unexpected shut-downs.
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From hard rock ores to highly abrasive sands, our liners protect excavator buckets, dump truck beds, vibratory screens, and dragline buckets.
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Combats severe high-temperature abrasion, impact from raw sinter, blast furnace top equipment, coke distributor chutes, and slag recovery plants.
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Protects coal crushing feed lines, pulverized fuel pipelines, dust collector cyclones, ash sluice pipes, and boiler combustion chambers.
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Material handling grabs, hopper chutes, and discharge pipelines operating at high speeds require CCO protection to withstand marine environments.
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For applications where extreme sliding wear dominates without impact, sintered high-purity alumina ceramics complement our CCO lineup.
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Continuous product updates and modifications tailored to the specifications of global heavy machinery OEMs.
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Collaborating with major technical universities to evaluate high-temperature oxidation limits in next-generation overlay steels.
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Tangshan Runxing Machinery Co., Ltd. launches its new platform to optimize digital supply chains, streamlining industrial procurement and client relations.
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Participated in South Africa's premier construction, mining machinery, and energy technology expo, presenting advanced CCO solutions for Africa's mineral belt.
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Leaders and metallurgy experts from Tangshan University visited Runxing to research metal forming, reinforcing our engineering foundation.
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Tangshan Runxing continues its close integration with VAUTID Germany, ensuring our premium-grade overlay materials align with global welding specifications.
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Showcasing mining and excavation solutions at EXPOMIN, demonstrating how Runxing CCO plates lower operating costs in South American mining fields.
Read MoreWhen sourcing Chromium Carbide Overlay plates, procurement teams must evaluate the metallurgical integrity of the product over simple per-ton price points. Three key factors dictate performance in the field:
During the overlay process, the base metal (substrate) melts and mixes with the welding wire alloy. High dilution lowers the chromium and carbon concentrations in the wear layer, reducing carbide density. Runxing utilizes automated swing-speed control systems to maintain a flat, low-heat arc, keeping the dilution rate of the first layer below 15%.
Fine, transverse cracks are a natural occurrence in high-quality CCO plates. These cracks relieve thermal stresses induced during high-temperature weld deposition. Procurement engineers must verify that these cracks only penetrate the overlay layer and terminate at the fusion boundary, without propagating into the base plate substrate.
Post-cladding distortion is a common challenge in cold-forming. High-quality CCO manufacturers utilize heavy hydraulic levelers to ensure flatness within 3mm over a 1500mm x 3000mm area, simplifying onsite fitting, welding, and bolting.
Automated cladding systems with CNC interface, swinging weld mechanisms, and multi-gun controls for high production rates.
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Comprehensive engineering services, including structural drawing, assembly line design, and on-site wear diagnostics.
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Onsite and factory rebuilding solutions for coal mills and cement vertical roller mills to restore profile geometries.
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Industrial-grade wear plates optimized for extreme pressure environments. Custom dimensions are fabricated to order.
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Specifically engineered for mine chutes. Combats high sliding abrasion and moderate impacts in bulk shipping operations.
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Bimetallic wear composite panels with standard sizing and quick-delivery capabilities for emergency plant maintenance.
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Wholesale cladding wire supplies for industrial rebuild centers, heavy machinery repairers, and alloy rebuilders.
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Premium self-shielding hardfacing welding wires designed for open-arc applications under harsh field operating conditions.
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