Engineered for extreme wear, impact, and high-temperature industrial environments
Precision-engineered composite plates with chromium carbide-rich deposits welded onto heavy structural steel backings.
Designed for cement plant chute liners and mining operations requiring peak wear life under abrasive stress.
Excellent composite steel plate featuring standard-setting wear-resistant cladding to double structural runtime.
Superior deposition wires engineered for overlay welding and surface restoration of industrial components.
Perfect for on-site machinery refurbishment, eliminating the need for shielding gas tanks during fabrication.
Standard composite wearplate containing high chromium overlay welded onto a ductile structural backing plate.
Specifically designed to resist severe high-stress grinding abrasion with minimum impact sensitivity.
State-of-the-art PTA-welded wear plates offering flawless chemical homogeneity and wear protection.
Industrial components in steel mills, cement plants, mines, and power generation facilities are subjected to aggressive mechanical destruction. Surface deterioration occurs primarily through sliding abrasion, high-velocity erosion, impact stresses, and localized corrosion. Standard structural steels and even conventional quenched-and-tempered (Q&T) alloys lack the microstructural profile required to withstand continuous abrasive bombardment.
This is where Chromium Carbide Overlay (CCO) bimetallic wearplates play a critical role. Comprising a ductile structural backing plate (such as Q235B steel) clad with a high-alloy, weld-deposited surface, CCO plates provide a dual benefit: structural weldability and unmatched wear-resistant hardness.
By shifting the primary interface to a chromium-dense alloy deposit, systems experience up to a 10x improvement in operation lifecycle over structural steel, minimizing unplanned shutdowns and reducing long-term plant maintenance costs.
Founded in 2010, Tangshan Runxing Machinery is a premier R&D and production powerhouse specializing in metal surfacing, wear liner customization, and pipeline hardfacing. Leveraging localized engineering mastery in Hebei, China, we export advanced metallurgical solutions globally.
Global Partner: All export logistics, shipping, international customs clearance, and secure transaction workflows are fully managed by Hebei Yuwan International Trade Co., Ltd., ensuring safe delivery and complete compliance for global enterprises.
Read More About Us >Sourcing from Tangshan Runxing Machinery means tapping directly into Hebei Province’s premier industrial steel manufacturing hub. Our factory utilizes cutting-edge production systems, including four-gun automatic overlay welding gantries, to deliver bimetallic sheets with optimal carbide uniformity and flat profiles.
The wear resistance of bimetallic overlay plates depends on the morphology, size, and distribution of the hard carbide phases. Under thermal surfacing conditions, chromium and carbon react to form M7C3 primary chromium carbides. The volume fraction of these primary carbides should ideally range between 30% and 50% to prevent brittleness while maintaining maximum surface protection.
| Alloy Element | Carbon (C) | Chromium (Cr) | Manganese (Mn) | Silicon (Si) | Microhardness |
|---|---|---|---|---|---|
| Standard CCO Overlay | 3.5% - 5.5% | 25% - 35% | 0.5% - 2.5% | 0.8% - 2.0% | 58 - 62 HRC |
| Complex Hardfacing Wires | 4.0% - 6.0% | 22% - 30% | 1.0% - 3.0% | 1.0% - 2.5% | 60 - 65 HRC |
*Note: Specialty grades incorporating Niobium (Nb), Titanium (Ti), or Boron (B) can be engineered for severe temperature scenarios exceeding 600°C or environments subject to intense impact.
From mineral processing extraction to steel production systems, Runxing wearplates keep infrastructure online
Protects critical equipment, including vertical coal mill feed chutes, hopper liners, separator fans, and cyclone dust collectors, from continuous raw material abrasion.
Protects heavy-duty excavators, dragline buckets, truck dump beds, and chute transfer systems from high-velocity sliding rock abrasion.
Protects sintering screens, blast furnace guide hoppers, and coke handling chutes from severe temperatures and abrasion.
Protects pulverizer coal conduits, fan blades, coal pulverizer housings, and ash disposal systems from abrasive wear.
Protects ship loader chutes, storage bins, hopper walls, and dredging discharge lines handling bulk solids and abrasive slurries.
Sintered high-purity alumina ceramics designed for extreme wear under low-impact conditions, supplementing CCO plates.
Ongoing engineering research to design specialty overlay structures that deliver increased durability in abrasive environments.
Custom engineering solutions designed to meet the demands of emerging industrial applications and green energy systems.
Navigating the logistics of heavy manufacturing exports requires a secure supply chain, reliable quality control, and compliant international trade processing. Tangshan Runxing Machinery operates with a dedicated export trade structure to ensure a seamless transaction experience for our partners globally.
To maintain production focus and quality control, all global sales transactions, international shipping, customs clearances, and payment processing are managed by Hebei Yuwan International Trade Co., Ltd.
Each production batch undergoes ultrasonic testing (UT) for bonding integrity, dye penetrant inspections for cracks, and Rockwell C (HRC) tests to verify carbide hardness.
Utilizing CNC plasma cutting and cold bending systems, we supply fully fabricated, bolt-ready liners matching exact OEM CAD drawings.
We offer comprehensive engineering support to optimize liner layout design, select wear alloys, and provide on-site installation consulting.
"Our goal is to help your team lower operating costs per ton of material handled by optimizing wear liner performance."
Runxing's international exhibition history and collaborative research initiatives
We launched our new web platform to enhance client connectivity and streamline the procurement of wear-resistant materials.
Presented our latest bimetallic CCO plates and hardfacing wires at the Johannesburg mining and construction exhibition.
Collaborated with Dean Yuan Shaoqiang's research team to optimize welding material formulations and hardfacing techniques.
Recognized as an authorized regional partner for high-grade German VAUTID welding consumables since 2019.
Showcased custom-engineered wear plates and liners tailored to the requirements of the South American mining industry.
Manufacturing processes are fully compliant with ISO 9001, DIN 8555, and international welding standards
Technical explanations and answers to common questions about bimetallic wearplates and hardfacing alloys
Quenched & Tempered (Q&T) steels like Hardox are structural steel alloys hardened through heat treatment, offering uniform hardness (typically 400-500 HBW) throughout the plate. CCO wear plates are bimetallic composites consisting of a mild steel base plate clad with a high-alloy overlay. The overlay contains primary M7C3 chromium carbides with microhardness ratings up to 1500 HV. CCO plates deliver up to 5-10 times the wear life of Q&T steels in severe sliding abrasion applications, though they are less suitable for high-impact environments.
Yes. CCO plates feature a mild steel backing (typically Q235B or ASTM A36) that allows them to be welded directly to existing structures using standard low-hydrogen welding consumables. They can be cut to shape using plasma arc or laser systems (cutting from the backing side is recommended). CCO plates can also be cold formed or rolled into curves and cylinders, with the overlay on the inner or outer face depending on the application.
Surface check cracks are normal and occur during the weld overlay process. Rapid thermal contraction during cooling creates relief cracks in the carbide surface. These cracks stop at the fusion line and do not propagate into the ductile backing steel. They help relieve internal stress and do not affect the plate's wear resistance.
Standard CCO plates are suitable for operating temperatures up to 350°C (660°F). For high-temperature environments (up to 650°C), we add alloying elements such as Niobium (Nb), Tungsten (W), Cobalt (Co), or Boron (B) to stabilize the carbide structure and prevent softening.
Tangshan Runxing Machinery focuses entirely on manufacturing, product development, and quality control. Hebei Yuwan International Trade Co., Ltd. handles all export operations, customs clearance, shipping logistics, and international payment processing, ensuring a reliable transaction workflow for global customers.
High-performance welding machinery, heavy engineering parts, and roller restoration services
Fully automated CNC hardfacing welding systems equipped with four independent guns for high-efficiency CCO sheet fabrication.
Custom structural design, profiling, and machining services to fabricate bolt-ready wear assemblies from technical CAD drawings.
Surfacing restoration and refurbishment services for vertical mill grinding rolls, table segments, and continuous caster rolls.
Engineered bimetallic wear sheets designed to optimize equipment runtime in abrasive industrial environments.
Runxing RX-m series wear plates designed for chute liners in mining and cement plants.
High-alloy bimetallic composite plates designed to withstand severe sliding abrasion.
High-deposition welding consumables designed for overlay welding and rebuild applications.
Self-shielded hardfacing wires designed for efficient, gas-free welding during on-site equipment repairs.
Runxing machinery