ODM Flux Cored Welding Wire Factory & Factories

Global Industrial Hardfacing Engineering Solutions & Premium Metallurgical Wear-Resistant Composite Materials

1. The Global Landscape of Hardfacing & Wear-Resistant Metallurgy

In modern heavy industries—ranging from bulk mining and steel processing to cement production and power generation—the deterioration of structural machinery elements due to extreme impact and abrasive mechanisms presents a persistent challenge. Abrasive wear results in significant downtime, decreased machine efficiency, and high capital expenditure. To mitigate these material integrity threats, industrial operators rely on hardfacing overlays and wear liners.

At the center of this protective technology is the Flux Cored Welding Wire (FCW). Engineered for high-deposition, structural versatility, and precise metallurgical delivery, ODM flux cored wires are the industry standard for component restoration and protective overlay fabrication. Today's global market demands specialized alloy formulations—predominantly chromium-carbide combinations (Fe-Cr-C matrix systems) designed for specific industrial environments.

Key Research Insight: The shift toward automated Open-Arc cladding processes has intensified demand for self-shielded flux cored wires. These wires eliminate the logistical challenges of external shielding gas systems in outdoor maintenance and rebuild yards, optimizing field productivity.

Through robust engineering and scientific formulation, contemporary ODM factories develop customized flux formulations containing critical primary carbide forming elements, including Chromium (Cr), Carbon (C), Niobium (Nb), Boron (B), and Molybdenum (Mo). Choosing the appropriate wear wire formulation is crucial to ensuring that wear-resistant plates (CCO) can withstand high-temperature abrasion, impact deformation, and structural degradation.

Core Industrial Deliverables

Featured Engineering & Repair Offerings

Runxing Machinery provides a comprehensive suite of hardware, consumable chemistry, and repair services for industrial plant longevity.

Wear Plate

Composite Wear Plate

Composite wear plate built with structural steel backing and a hard weld surfacing overlay. RX®wp 7600 delivers extreme wear defense, engineered in alignment with DIN 8555 requirements to ensure high-stress abrasion protection.

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Welding Wire

Flux Cored Welding Wire

Self-shielded flux cored welding wire featuring high-chromium alloys designed to resist high-stress grinding abrasion. Optimal deposition and minimal dilution guarantee a high concentration of primary chromium carbides.

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PTTA

PTTA Surfacing Alloys

High-integrity alloys engineered for specialized plasma cladding and hardfacing. Designed to provide a dense, defect-free deposition zone across custom component geometries in extreme service conditions.

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Welding Equipment

Surfacing Machinery

Highly automated, efficient CNC surfacing machinery with a space-saving footprint and simplified maintenance. Configured for solid, flux-cored, and open-arc wires to rebuild complex system components.

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Machining and Engineering

Machining & Engineering

Our custom machining capabilities ensure that pre-clad wear plates can be cut, formed, rolled, and bolted into complex geometries according to site design drawings and specifications.

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Roll Repair

Grinding Mill Roll Repair

Comprehensive wear recovery and hardfacing repair solutions for coal pulverizers, vertical roller mills, and steel casting rolls, extending the operational life of heavy rotative components.

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2. Metallurgy of Hardfacing: The Physics of Chromium Carbide Overlay (CCO)

To understand why specific OEM/ODM flux-cored wires excel in industrial environments, we must analyze their metallurgical microstructure. During deposition, the molten wire forms a coating characterized by a high volume fraction of primary M7C3 chromium carbides embedded in a tough, austenitic matrix.

The carbon and chromium ratios are balanced to exceed the eutectic composition limit, promoting the formation of hexagonal primary carbides. These carbides, which typically register a microhardness between 1200 and 1600 HV, provide superior resistance to low-stress scratching, high-stress grinding, and gouging abrasion. In contrast, the surrounding matrix supports the hard carbides, preventing premature micro-spalling and chipping under impact.

Deposition and Cladding Methods

  • Open Arc (Self-Shielded): This method uses gasless flux-cored wires with denitrifiers and deoxidizers in the core, eliminating the need for shielding gas and facilitating outdoor operations.
  • Gas Metal Arc Welding (GMAW / Submerged Arc): This approach produces premium-grade, low-porosity surfaces. Submerged-arc processes are ideal for thick cladding and heavy component reconstruction.
  • Plasma Transferred Arc (PTA): This technique provides precise dilution control and a low heat-affected zone (HAZ), making it suitable for intricate geometries and high-alloy formulations.

The Dilution Control Factor

Proper dilution management is critical to hardfacing quality. If the base metal fuses excessively with the surfacing deposit, the carbon and alloy concentrations in the overlay will decrease, lowering wear resistance. Our advanced machinery control platforms manage arc swing, voltage, and travel speed to maintain dilution levels below 10-15%, ensuring maximum wear protection.

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Corporate Authority & Reliability

Tangshan Runxing Machinery Co., Ltd.

Founded in 2010, Tangshan Runxing Machinery Co., Ltd. is a specialized manufacturer of hardfacing wear-resistant metal products, located in Tangshan, Hebei Province—the heart of China's metallurgy. Runxing maintains modern, research-backed production lines that fabricate premium-grade chromium carbide overlay (CCO) wear plates, custom liners, wear-resistant pipe elements, flux-cored welding wires, and automated surfacing machinery.

We work closely with leading academic institutions, including Tangshan University (Materials Science Division), to continuously optimize alloy chemistry and manufacturing technologies. For over six consecutive years, Runxing has been an authorized agent for VAUTID (Germany), applying high-end German wear-facing technology to meet demanding industrial specifications.

To streamline global supply chains, our export transactions are handled by Hebei Yuwan International Trade Co., Ltd. This partnership covers customs clearance, compliance paperwork, multi-currency financing, and secure logistics, allowing our factory to focus entirely on quality control, development, and production scheduling.

2010
Established Year
6+ Yrs
VAUTID Qualified Agent
10k+ Tons
Annual Core Deposition
20+
Global Trade Corridors
Global Operations

Field-Proven Industry Applications

Our hardfacing materials and techniques are engineered to protect critical equipment in high-impact and high-wear environments.

Cement Plant Hardfacing

Cement & Limestone Mills

Raw feed hoppers, chute liners, vertical roller mill (VRM) tyres, and table segments suffer continuous high-stress grinding abrasion. Runxing CCO plates and wear wires help plants maximize uptime and extend component service life.

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Mining Equipment Hardfacing

Mining & Extraction Chutes

Excavator buckets, dragline components, truck body liners, and primary crushers encounter high-impact loads. Custom CCO plates and specialized hardfacing wires provide cost-effective protection in these demanding conditions.

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Steel Mill Wear Solutions

Steel Processing & Blast Furnace

Coke distributor chutes, sinter plant screens, guide rollers, and hot hopper parts operate under combined mechanical abrasion and extreme heat. Our high-chromium, high-temperature overlays are engineered to perform in these conditions.

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Power Generation Wear Elements

Coal-Fired Power Plants

Coal pulverizer mill rollers, fan housings, and exhaust ducts require long-term wear protection. Precise hardfacing overlays prevent material loss and maintain system efficiency over extended operating cycles.

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Port Dredging Material Transfer

Ports & Dredging Equipment

Dredging cutter heads, pump casings, and material discharge elbows face wear from water, sand, and stone. Specialized chromium carbide overlays provide the protection needed for continuous operation.

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Alumina Ceramic Alternative Solutions

Alumina Ceramic Liners

High-purity sintered alumina ceramics provide an alternative wear-protection method. These materials are suitable for chemical processing, fine powder handling, and low-impact sliding environments.

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3. Technical Roadmap: The Future of Hardfacing Technology

The hardfacing industry is evolving toward higher automation, improved chemical precision, and reduced environmental impact. Our research and development efforts focus on several key areas:

A. Next-Generation Nanostructured Alloys

Standard chromium carbide structures have grain boundary sizes in the tens of micrometers. Our advanced development team is working on nanostructured iron-based alloys. By refining the grain size down to the nanometer scale, the overlay material achieves higher hardness along with improved toughness, avoiding the traditional trade-offs between brittle fracture and wear life.

B. Precision Automated Multi-Gun Surfacing

Modern industrial repair shops require highly consistent results. Runxing's latest CNC hardfacing systems feature up to four independent welding heads operating in sync. These machines use closed-loop feedback systems to continuously adjust voltage, current, and torch oscillation based on real-time temperature tracking of the weld pool. This level of control minimizes distortion and keeps dilution levels to a minimum.

C. Global Supply Chain Compliance and Logistical Operations

In partnership with Hebei Yuwan International Trade Co., Ltd., Runxing handles international logistics and regulatory requirements. Our export operations comply with relevant global standards, including ASME, DIN 8555, and EN certifications. This ensures that every shipment of hardfacing plates and welding wires arrives on site with full material test reports and trace documents.

News & Exhibition Timeline

Events & Industry Connectivity

Stay updated on Runxing's global event presentations, academic partnerships, and operational news.

Website launch news

Runxing Machinery Launches Advanced Web Service Platform

We have officially launched our updated digital platform to enhance access to technical documentation, product parameters, and custom ordering options for buyers worldwide.

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Electra Mining Africa Exhibition

Runxing Machinery Showcases at Electra Mining Africa 2024

In September 2024, our engineers demonstrated our latest self-shielded wires and custom overlay liners to mining companies and equipment builders at Johannesburg.

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University Research Partnership

Tangshan University Academic Visit and R&D Inspection

Dean Yuan Shaoqiang, Vice Dean Li Jing, and Professor Yang Yuehui visited our facility to review our joint development work on alloy wire formulations and robotic cladding.

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German VAUTID Cooperation

Runxing Reaffirms VAUTID Agency for the Sixth Consecutive Year

By renewing our long-term partnership with Germany's VAUTID, we continue to combine European metallurgy with local production efficiency to serve our global clients.

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EXPOMIN Exhibition Chile

Expanding South American Operations at EXPOMIN 2023

Our engineering team joined the mining conference in Santiago, Chile, presenting our custom wear linings and bimetallic plates to major mining operations across the region.

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Continuous Production Updates

Production Expansion and Quality Upgrades at Tangshan Facility

We have added two high-frequency alloy wire drawing lines and automated spooling systems, increasing our annual production capacity of flux-cored wire.

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Technical FAQ

Frequently Asked Questions

Answers to common questions regarding flux-cored wires, custom CCO wear plates, and industrial surfacing repairs.

What is the typical chemical composition of Runxing's high-hardness CCO wear plates?
Our standard chromium carbide overlay (CCO) plates, such as the RX®wp 7600 series, generally contain between 4.0% to 5.5% Carbon (C) and 25% to 35% Chromium (Cr). This balance forms primary M7C3 hexagonal carbides with microhardness values of 1200–1600 HV, supported by a tough austenitic matrix.
When should I use self-shielded (open-arc) flux-cored wire instead of gas-shielded wire?
Self-shielded (open-arc) wire is designed for outdoor repair work or on-site welding where wind can disrupt external shielding gas. The core of the wire includes special deoxidizers and denitrifiers that protect the weld pool. Gas-shielded processes are better suited for controlled shop environments, producing minimal slag and low emissions.
How does Hebei Yuwan International Trade Co., Ltd. assist with international orders?
Hebei Yuwan is our authorized export partner. They manage all commercial trade requirements, including export licensing, customs declarations, shipping logistics, payment collection, and trace documentation, ensuring smooth deliveries to our global customers.
What standards do Runxing's hardfacing materials conform to?
Our products conform to major international standards, including DIN 8555 (e.g., MSG 10-GF-60-G classification) and relevant ASME specifications, ensuring consistent mechanical performance and chemistry across all batches.
Authorized Standards

Production Quality & Certified Distribution

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