Industrial equipment operating in heavy wear environments undergoes rapid degradation through abrasion, impact, adhesion, and thermal cycling. As a premier OEM Hard Facing Welding Rod Manufacturer, Tangshan Runxing Machinery Co., Ltd. delivers engineered alloys and wear protection components designed to restore, protect, and extend the active working life of heavy infrastructure. Our technology focuses on introducing a protective layer composed of hard chromium carbide ($Cr_7C_3$) precipitates locked in a resilient matrix, providing wear resistance that outperforms standard carbon steel up to twenty times over. Discover our customized industrial portfolios below.
High-deposition alloy wire options built to offer resistance against severe mineral grinding and abrasive wear.
Bimetallic structural plates designed with complex wear-resistant surface deposits for high-stress applications.
Optimized for open-arc welding systems, removing the requirement of external shielding gas tanks during field work.
Engineered for high stress mining environments, cement chutes, and structural bulk loading liners.
Premium grade backing paired with a hard overlay matching the strict criteria of DIN 8555 standards.
Constructed with structural steel backing and hard weld overlay, providing reliable structural reinforcement.
Specifically designed to resist severe grinding abrasion with low impact stresses on machine surfaces.
Superior quality deposition alloys that enhance critical machinery components against heavy service fatigue.
In modern metallurgy, hardfacing is a key process to optimize industrial service life. By depositing specialized alloy layers onto low or medium-carbon steel bases, engineers can modify surface performance without paying for expensive, solid-alloy structural steel elements. Hardfacing alloys are classified according to their primary microstructure, which typically falls into three main groups: Austenitic alloys (primarily for high impact work hardening), Martensitic alloys (offering balance between structural strength and moderate wear resistance), and Chromium Carbide Alloys (ideal for extreme sliding abrasion).
The choice of welding consumables is determined by the specific wear mechanism: Three-body abrasion requires a dense dispersion of primary $Cr_7C_3$ carbides with high micro-hardness, while severe impact requires tough alloys that prevent cracking. Modern material science balances carbide density with matrix toughness to prevent spalling and delamination under stress.
We provide chemical composition options containing Carbon (C), Chromium (Cr), Manganese (Mn), and Boron (B) to match target hardness profiles from 55 HRC to over 65 HRC, ensuring optimal performance under varying thermal and chemical environments.
Our systems support submerged arc welding (SAW) and open-arc cladding (FCAW-G/S) to ensure deep weld penetration, low dilution rates, and smooth bead finishes across all industrial component geometry profiles.
Our overlays are built to withstand high stress sliding abrasion and particle impact, preventing early failures in transfer chutes, classifiers, hopper systems, and processing equipment.
Tangshan Runxing Machinery Co., Ltd., based in Tangshan, Hebei Province, is a professional manufacturer focused on the R&D, production, and on-site construction services of hardfacing wear-resistant metal products. Our plant produces chromium carbide overlay (CCO) wear plates, custom-fabricated liners, wear-resistant pipes and fittings, hardfacing flux-cored wires, automatic welding systems, and mill roll rebuilding services.
Operating under the core principles of "Integrity, Superior Quality, Innovation & Sustainable Development," we deploy surface hardfacing technologies across the globe. Our industrial wear solutions support processing plants in Russia, Central Asia, and Africa, minimizing plant shutdowns and optimizing throughput. All our export operations are managed by Hebei Yuwan International Trade Co., Ltd., allowing our production facility to focus on product consistency and on-time delivery.
To assist procurement managers and maintenance engineers, we supply custom hardfacing alloy wire configurations. Our standard reference spectrum below outlines typical chemistries and applications:
| Alloy Group | Hardness Range (HRC) | Primary Elements | Key Performance Traits | Typical Industrial Applications |
|---|---|---|---|---|
| Martensitic Steel | 50 - 58 HRC | Fe-Cr-Mn-Si | Good resistance to metal-on-metal wear, adhesive friction, and moderate impact forces. | Crane wheels, shafts, agricultural soil preparation tools, track rollers. |
| Chromium Carbide Overlay (CCO) | 58 - 65 HRC | Fe-Cr-C (Rich Cr7C3) | Extreme sliding abrasion resistance; maintains performance up to 350°C temperatures. | Cement chute liners, hopper linings, mining dragline buckets, fan blades. |
| Complex Carbides (Nb/W/V additions) | 60 - 67 HRC | Fe-Cr-Nb-W-V-C | Superior abrasion resistance at elevated operating temperatures reaching up to 650°C. | Sinter plant screens, blast furnace components, coke chute wear plates. |
| Austenitic Manganese | 20 HRC (Work hardens to 50+) | Fe-Mn-Cr-C | High impact absorption with surface work-hardening behavior; tough core. | Jaw crusher plates, rock pulverizers, railway frogs and switch tracks. |
Equipment availability is essential for cement plants. Our CCO wear plates protect separators, vertical roller mill tables, and feed chutes from continuous limestone abrasion.
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We supply wear-resistant materials designed to withstand severe mineral impact, protecting excavation buckets, dump bodies, and slurry transfer systems.
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Steel plants require materials capable of operating under high temperatures and corrosive environments, including sinter screens and blast furnace charge buckets.
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We provide wear protection for fan blades, fuel pulverizer parts, and coal conveying systems, minimizing downtime in coal-fired power stations.
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Bulk materials transfer causes high wear in storage hoppers and chutes. Our overlay plates extend the lifespan of port material handling equipment.
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For applications where metallic weld overlays are not suitable, we offer high-purity sintered alumina tiles to provide erosion protection.
Explore Ceramic Liners >Our manufacturing processes comply with international industry standards. Our bimetallic wear plates and hardfacing wires are manufactured and tested to meet DIN 8555 classifications (e.g., MF-10-GF-65-GR) and ASTM G65 Procedure A standards for dry sand rubber wheel abrasion testing. This systematic testing ensures our products meet high wear resistance standards under real-world operating conditions.
For over six consecutive years since 2019, Tangshan Runxing Machinery has partnered with the German wear-protection brand VAUTID, acting as a qualified agent and integrator of their premium alloy formulations. This cooperation combines German metallurgy with our large-scale production and machining capacity in China.
Our current R&D efforts focus on developing next-generation nanostructured alloy systems and reducing dependency on high-cost alloying elements like Cobalt. By optimizing the distribution of chromium carbides on a molecular level, we aim to produce overlay plates that offer higher fracture toughness without sacrificing surface hardness. This research supports the development of lighter, thinner wear plates with extended operational life.
We have launched our updated web platform, runxing-machinery.com, designed to provide a comprehensive digital catalog and technical resources for wear protection systems.
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Our team participated in the Electra Mining Africa exhibition in Johannesburg, South Africa, presenting our range of wear plates and hardfacing wires to mine operators across the continent.
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In 2023, leaders and materials research teams from Tangshan University visited our facility to inspect our manufacturing lines and discuss joint research projects on welding metallurgy.
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Maintaining our status as a qualified VAUTID partner since 2019 allows us to integrate specialized wear-resistant materials into our custom manufacturing and surfacing services.
We presented our wear-resistant solutions for bulk materials handling and milling at the EXPOMIN exhibition in Santiago, Chile, expanding our footprint in the South American market.
CNC-controlled overlay systems equipped with a 10.2-inch interface and four-torch capability for high-speed surfacing.
Fabrication of replacement components, wear plates, and machine parts built to client specifications.
Rebuilding worn rolls, crusher shafts, and steel mill rollers using customized alloy layers.
High-hardness replacement liners designed to protect cement grinding tables and classifiers from abrasive wear.
Thick overlay plates designed to withstand impact and sliding abrasion from rock and mineral ores.
Complex carbide overlays designed to maintain hardness and resist oxidation at elevated temperatures.
Lightweight wear-resistant plates engineered to shield fan blades from erosion by high-velocity ash particles.
Impact-resistant hardfacing materials designed to extend the service life of port loading and unloading gear.
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