Discover our foundational selection of bimetallic chromium carbide overlay plates, premium hardfacing alloys, and specialized manufacturing equipment.
High-Quality bimetallic overlay plating utilizing proprietary metallurgical fusion methods for extreme structural protection.
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Premium wholesale hardfacing consumables engineered to deposit protective matrices with outstanding mechanical durability.
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Custom-machined CCO plates tailored directly from our advanced fabrication floor to match specific abrasion indices.
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Self-shielded hardfacing wire eliminating the need for external shielding gases, optimized for field maintenance.
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Runxing RX-m Series plates designed for high impact, high stress mining, and cement chute liner environments.
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Composite material wearplate consisting of structural steel backing and hard weld surfacing conforming to DIN 8555.
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Self-shielded high-alloy wire engineered to resist high-stress grinding abrasion with low impact structural loads.
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Plasma Transferred Arc technology setups for high-efficiency, automated surface overlay applications.
Explore Specifications →In high-stress industrial applications, surface degradation due to sliding abrasion, impingement, and heavy impact stands as the leading cause of structural failure and unscheduled downtime. Tangshan Runxing Machinery Co., Ltd. resolves these operational criticalities through advanced metallurgical design of Chromium Carbide Overlay (CCO) Wear Plates. Structurally, our CCO wear plates are composite systems formed by fuse-depositing a highly alloyed, chromium-rich powder or flux-cored wire onto a ductile structural backing plate (typically ASTM A36, Q235B, or custom structural carbon steels).
The core wear defense mechanism is rooted in the formation of primary M7C3 carbides within a tough austenitic matrix. During the open-arc or submerged-arc welding process, rapid cooling parameters are calibrated to yield a hypereutectic microstructure. In this phase configuration, the primary M7C3 carbides (with an exceptional microhardness ranging between 1200 and 1600 HV) precipitate perpendicular to the wear interface. This oriented configuration guarantees that sliding abrasive forces encounter the hard tips of these carbide hexagonal needles, minimizing surface cutting and shear deformation.
Unlike standard quench-and-tempered martensitic steels (such as Hardox or AR-type plates), which rely on uniform lattice distortion for hardness, CCO plates utilize a dual-phase composite structure. While martensitic steels lose hardness rapidly when exposed to temperatures exceeding 250°C, the primary M7C3 carbides in Runxing's plates remain metallurgically stable at service temperatures reaching up to 600°C. This makes our CCO plates the industry standard for sinter plants, cement clinker systems, and blast furnace applications.
| Property / Specification | Runxing RX®wp 7600 series | Standard Martensitic Steel (AR400/500) |
|---|---|---|
| Bulk Hardness | 58 - 62 HRC (650 - 750 HBW) | 360 - 500 HBW | Microhardness of Carbides | 1200 - 1600 HV0.3 | N/A (Uniform Matrix) |
| Volume Fraction of Carbides | 35% - 45% (M7C3) | 0% |
| Max Service Temperature | 600°C (1112°F) | 250°C (482°F) |
| ASTM G65 Wear Resistance Index | < 0.15g mass loss (Procedure A) | > 0.85g mass loss |
We analyze working conditions across heavy industries to design customized alloy compositions and layout configurations that extend asset lifespans up to 10x compared to mild steels.
Raw mill chutes, cyclones, classifier guides, and separator blades encounter high-velocity particulate flow. The availability of critical equipment determines plant uptime. Our CCO liners prevent premature erosion under heavy dust loads.
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Dragline buckets, shovel liners, hopper chutes, and truck beds face severe sliding abrasion coupled with high-impact forces. Our RX-m series utilizes micro-alloying to prevent matrix spalling under impact stresses.
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Coke chutes, blast furnace bell systems, and sinter screens operate under brutal thermal loads and corrosive gas streams. Our high-temperature alloys maintain hardness up to 600°C without microstructural softening.
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Fan blades, conveyor chutes, coal pulverizer liners, and dust exhaust piping systems are kept running at peak efficiency by utilizing precise overlay thicknesses to prevent erosion from pulverized fuel.
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Receiving hoppers, stacker-reclaimer liners, and transfer chutes handle tons of abrasive ores daily. Installing custom cut-to-shape Runxing CCO plates reduces maintenance cycles and increases daily transshipment rates.
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For extreme erosion profiles, we supply specialized solutions, including high-purity sintered alumina ceramics. These components provide tailored defenses in non-weldable areas and chemical-processing environments.
View Case Studies →The industrial landscape is moving toward decarbonization and operational optimization, making long-lasting wear materials more critical than ever. Runxing's metallurgical research is currently focused on three core engineering directions:
By incorporating precise additions of Niobium (Nb), Titanium (Ti), Vanadium (V), and Tungsten (W) into our flux-cored wires, we can produce secondary complex carbides. These elements precipitate at earlier stages of the weld pool solidification, acting as nucleation sites that refine the coarse primary chromium carbides. This structural refinement increases fracture toughness and improves wear resistance under high-impact conditions.
Modern engineering designs demand weight reduction without compromising surface protection. Runxing's engineering team is developing thin-gauge CCO plates, depositing a 3mm wear layer onto a 3mm or 4mm base plate. Controlling deformation and dilution rates in thin-gauge configurations requires highly precise arc parameters, which are managed by our automated digital welding equipment.
Through our proprietary flux formulations, we have reduced heavy smoke emission during the open-arc overlay process by 25%. Additionally, our R&D is focused on maximizing the recovery rate of alloying powders, reducing resource waste while maintaining structural integrity.
Located in Tangshan, Hebei Province—the steelmaking heartland of China—Tangshan Runxing Machinery Co., Ltd. has established itself as an integrated R&D, production, and on-site servicing powerhouse. Operating from our automated facility, we manufacture high-grade chromium carbide overlay (CCO) wear plates, hardfacing flux-cored welding wires, and custom processed wear liners.
Our location offers direct access to high-quality raw materials, allowing us to maintain stable pricing and rapid production lead times. All international logistics, customs clearance, global payments, and export documentation are managed by our authorized partner, Hebei Yuwan International Trade Co., Ltd., ensuring seamless door-to-door delivery for our global customers.
Procuring CCO plates requires careful verification of technical specifications. Standard quality criteria for our international clients include:
We work closely with machinery manufacturers, maintenance teams, and distributors worldwide to provide on-site technical support and customized products.
Our digital platform (www.runxing-machinery.com) streamlines global sourcing, providing quick access to product data sheets and engineering support.
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At the Johannesburg exhibition, we showcased our high-performance mining overlays, designed to withstand the harsh abrasive conditions found in African iron ore and gold mines.
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In 2023, leaders and material engineering professors from Tangshan University visited our facility to collaborate on refining high-temperature surfacing technologies.
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For six consecutive years, Runxing has served as a qualified partner for VAUTID, integrating their premium welding materials into our customized wear products.
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We participated in EXPOMIN 2023 to present our custom crusher plates and chute liners directly to major mining operations across South America.
Read More →Beyond wear plates, Runxing provides full-service rebuilding, weld overlays, and refurbishment for heavy industrial components subject to intense surface deterioration.
We manufacture high-efficiency, multi-arc overlay welding machines equipped with CNC swing controllers. These systems are designed to repair grinding rollers and produce uniform wear-resistant composite plates.
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Our workshop offers complete fabrication services, including plasma cutting, rolling, and welding. We can supply pre-drilled, count-sunk CCO wear liners ready for bolt-on installation.
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We rebuild worn vertical grinding rolls and roller presses for the cement, steel, and coal industries. Our surfacing techniques restore original dimensions and extend operational lifespans.
Learn More →Find answers to common technical and logistical questions about specifying, installing, and sourcing our wear-resistant products.
These are stress-relief cracks that form naturally during weld solidification. Because the weld overlay has a different thermal expansion rate than the backing carbon steel, stress builds up as it cools. These hairline cracks release the tension and prevent the plate from warping. They terminate at the fusion boundary and do not compromise the plate's structural performance.
Yes. The backing plate is made from standard structural steel (like Q235B or ASTM A36), which is easily weldable to your equipment frame. The plates can be cut using plasma arc cutting systems from the backing side toward the overlay. They can also be cold-formed or rolled (usually with the overlay on the inner curve) depending on the thickness configuration.
Our standard base metal is Q235B structural carbon steel. For specialized applications, we can use pressure vessel steels, high-strength low-alloy steels, or stainless steels (such as 304 or 316) to provide corrosion resistance in chemical or wet environments.
All of our international trade operations—including contract execution, customs clearance, shipping arrangements, and payment collection—are handled by our authorized partner, Hebei Yuwan International Trade Co., Ltd. This division of labor allows our factory to focus entirely on quality control, custom fabrication, and R&D.
In high-abrasion environments (such as sliding sand, sinter dust, or coal handling), a chromium carbide overlay plate can last 4 to 10 times longer than standard quenched and tempered AR500 steel plates, depending on the severity of the abrasion and thermal conditions.
We maintain strict manufacturing standards, from raw materials and alloy formulation to automated weld deposition, ensuring consistent wear resistance in every batch.
Select a product to view technical specifications, available thickness options, chemistry profiles, and request a quote.
High-Quality bimetallic overlay plating utilizing proprietary metallurgical fusion methods for extreme structural protection.
Quote & Order →
Premium wholesale hardfacing consumables engineered to deposit protective matrices with outstanding mechanical durability.
Quote & Order →
Custom-machined CCO plates tailored directly from our advanced fabrication floor to match specific abrasion indices.
Quote & Order →
Self-shielded hardfacing wire eliminating the need for external shielding gases, optimized for field maintenance.
Quote & Order →
Runxing RX-m Series plates designed for high impact, high stress mining, and cement chute liner environments.
Quote & Order →
Composite material wearplate consisting of structural steel backing and hard weld surfacing conforming to DIN 8555.
Quote & Order →
Self-shielded high-alloy wire engineered to resist high-stress grinding abrasion with low impact structural loads.
Quote & Order →
Plasma Transferred Arc technology setups for high-efficiency, automated surface overlay applications.
Quote & Order →
Runxing machinery