Industrial Surface Hardfacing Products
High chromium alloy designed for resisting high stress grinding abrasion with low impact. Engineered specifically for wear plate surfacing operations.
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Runxing RX-m Series customized CCO steel plates. Excellent protection for mining, cement chutes, and heavy processing industrial wear liners.
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Top-tier metallurgy formulas containing chromium carbide and complex borides to reinforce structural durability on worn industrial components.
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Heavy duty composite steel plate featuring a structural backing plate and a hard weld overlay, aligned with international DIN 8555 standards.
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Direct manufacturer supply. High-density chromium carbide microstructures providing optimal sliding and impact wear properties across high temps.
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Made of a premium structural steel backing & a high-density hard weld surfacing. Aligned to international abrasion resistance parameters.
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Engineered for high stress grinding abrasion. Guarantees long structural life of base metal substrates under aggressive low-impact cycles.
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Precision hardfacing materials offering consistent fusion bonds with zero degradation of core material properties during application.
Learn MoreChromium Carbide Overlay (CCO) wear plates represent the vanguard of surface engineering protection. Fabricated using heavy weld overlay systems, a mild steel substrate (often Q235, Q355, or ASTM A36) is clad with proprietary flux-cored wires containing a heavy concentration of Chromium Carbon alloys. During fusion, the chemistry structures itself into primary M7C3 carbides, providing unmatched abrasion resistance.
Our RX®wp series overlay features a high volume fraction of primary chromium-rich carbides embedded in a tough, eutectic matrix. With macro hardness ranging between 58 to 62 HRC, it delivers protection up to 10 times higher than classic carbon steels.
By controlling dilution rates during weld deposition, we ensure that the interface zone maintains mechanical strength, preventing delamination. The hard overlay operates effectively under extreme operating temperatures up to 350°C (and up to 600°C with custom alloying additions like Niobium, Tungsten, and Boron).
| Property / Spec | Standard Value | Runxing RX-m Premium |
|---|---|---|
| Base Plate Options | Q235B, Q355B, A36 | Customized (Up to High-Strength) |
| Chemical Composition | Cr: 15-30% | C: 3.0-5.5% | Cr: 25-35% | C: 3.5-5.5% + Trace Elements |
| Overlay Hardness | 55 - 60 HRC | 58 - 62 HRC (ASTM G65 Verified) |
| Carbide Structure | Primary Carbides | M7C3 crystalline structure (vol% > 35%) |
| Temp Resistance | Up to 300°C | Max 350°C (Special alloys up to 600°C) |
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Founded in 2010 in Tangshan, Hebei Province (the heart of China's heavy steel production clusters), Tangshan Runxing Machinery Co., Ltd. is a premier professional manufacturer focusing on the R&D, fabrication, and on-site servicing of hardfacing wear-resistant metal products.
Our core capabilities include Chromium Carbide Overlay (CCO) wear plates, custom processed wear liners, wear-resistant pipes and fittings, hardfacing flux-cored welding wires, automatic cladding machinery, and specialized roller surfacing repair services. We utilize advanced metal surface deposition technologies to offer customized solutions across cement, steel, mining, port, power, and dredging industries globally.
Export Authorization: All global export operations are handled exclusively by our authorized partner, Hebei Yuwan International Trade Co., Ltd. This strategic division allows our production team to focus 100% on product quality and manufacturing innovation while providing international clients with seamless logistics, custom clearance, and transactional support.
Proven Performance in Extreme Environments
Availability of crushers, chutes, and separator guides is critical. Our CCO plates extend the operating lifecycles of cement plant equipment by up to 300%.
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Mine operators globally trust our heavy-impact CCO wear plates to protect hopper boxes, dragline buckets, and haul truck liners from abrasive ores.
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Withstanding high temperatures, furnace coke abrasion, and sintering dust. Runxing plates excel in extremely harsh blast furnace conditions.
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Wear protection for fan blades, coal pulverizer housings, hopper liners, ash-conveying pipelines, and exhaust dust removal systems.
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High flow-rate terminal chutes, barge loaders, and grab buckets suffer high-velocity sliding wear. Our smooth overlay solutions optimize flow dynamics.
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Engineered high-purity alumina ceramics sintered at extreme heat to provide outstanding wear solutions for fine-grain chemical handling.
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Our heavy bimetallic composite wear pipes and elbows handle high-velocity sand/gravel mixtures without premature structural failures.
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Comprehensive reconstruction and surface hardfacing rebuild solutions for vertical grinding mill rollers, reducing overall operational overhead.
View SolutionsWhy Procurement Managers Choose China Supply Chains
Located in Tangshan, Hebei, our factory sits directly inside the world's most dense steel production region. This guarantees immediate access to premium steel backing substrates (Q235B, Q355B, etc.) and reduces structural plate sourcing costs to a minimum.
Our proprietary four-gun automated overlay cladding units operate with high-speed swing controls and specialized cooling technologies. This ensures minimal heat-affected zones (HAZ), uniform dilution rates, and a flat cladding surface requiring zero additional milling.
Runxing has partnered with the premium German wear material provider VAUTID since 2019, serving as a trusted regional representative. Every batch of CCO wear plates conforms to ASTM G65 abrasion testing protocols and displays consistent mechanical reliability.
Stay Updated with Runxing Machinery
Our platform entered active operations to streamline global B2B procurement of high-hardness CCO wear plates and flux-cored wire supplies.
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Our engineering team met key mining partners in Johannesburg, presenting localized anti-abrasive solutions for heavy iron ore and coal extraction setups.
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A delegation of academic specialists inspected our cladding production lines to push advanced research on high-alloy hardfacing metallurgy.
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Solidifying our technical integration, our factory remains authorized to utilize and distribute German-grade premium VAUTID wear-resistant compounds.
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Establishing presence in the Latin American mining corridors, our customized CCO liners and crusher shell replacements garnered significant attention from global copper giants.
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Modern heavy industry is shifting from reactive maintenance to proactive surface lifetime management. Procurement managers no longer focus solely on the initial cost per square meter of wear-resistant steel. They prioritize the Total Cost of Ownership (TCO) and equipment availability rates.
By shifting to advanced high-hardness CCO wear plates, heavy operations experience up to 5x fewer shutdowns, saving hundreds of thousands of dollars in labor and lost production output. The demand for customized ODM fabrications is also rising, with companies seeking pre-bent, pre-drilled, and counter-bored wear liners that fit directly into their structural chutes.
Sustainability Factor: Fabricating components using hardfaced overlays helps lower overall structural weight. Steel mills and cement plants can operate light chutes and high-speed separator fans with thin, lightweight base plates protected by ultra-hard CCO overlays, saving operational power.
Furthermore, automation in hardfacing is paving the way for digital tracking. Our research explores embeddable wear indicators and predictive analytics models to predict exactly when a liner needs replacement, preventing catastrophic failures.
Technical Reference & Buying Guide
A standard CCO plate consists of a mild structural backing steel (like Q235B or ASTM A36) welded with a highly alloyed overlay. The overlay composition generally features carbon levels between 3.5% and 5.5%, and chromium concentrations between 25% and 35%. This high concentration forms primary M7C3 chromium carbides within a tough matrix, achieving high hardness levels of 58-62 HRC.
Yes, CCO plates can be cold-formed and rolled into pipe structures or curved chute liners, provided the rolling radius matches recommended limits (usually, rolling is done with the overlay on the inner side). They cannot be easily drilled or machined using standard HSS tooling due to their extreme hardness. We utilize plasma arc cutting, waterjet cutting, or air-carbon arc gouging, and insert pre-designed counter-bored mounting holes or weld studs on the base metal plate.
Surface stress-relief cracking is a normal, inherent characteristic of high-quality chromium carbide overlays. The high-density thermal application and rapid cooling induce stress. These micro-cracks relieve structural tension without penetrating through the base steel substrate, and they do not affect wear performance. During operation, these cracks remain stable and do not cause delamination.
Our quality control department tests every production run for overlay thickness, chemistry profile via spectrometers, and hardness across multiple points. We also perform ASTM G65 wear testing on samples. All international commerce, letters of credit, customs clearances, and multi-modal logistics are handled via our authorized export firm, Hebei Yuwan International Trade Co., Ltd.
Engineered Wear Assemblies
Intelligent CNC overlay systems with interactive parameters and swing controls, engineered to maximize welding efficiency and quality.
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On-site build-up repair services for cement vertical mills and steel mill table rollers, optimizing operational cycles.
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Seamless carbon steel pipes protected internally with custom chromium carbide cladding. Ideal for sand, gravel, and dredge slurry lines.
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We process plates into custom shapes with counter-bored bolt holes, secure mounting slots, and complex curves using plasma arc tools.
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Our proprietary formulation flux-cored wires designed to deposit highly wear-resistant chromium-rich carbides under open-arc welding.
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Hardfaced wear plates designed with specialized perforation patterns to withstand severe sliding abrasion in dry bulk screening facilities.
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Lightweight base metals balanced with thin, high-density CCO cladding to protect dynamic fan assemblies in cement operations.
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Wear-prone pipeline elbows lined with high-carbide overlays to resist high-velocity abrasive slurry flows.
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Runxing machinery