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In industries exposed to high wear environments—such as mining, cement production, steelmaking, and power generation—component failure due to abrasion and impact remains a major operational challenge. Modern wear-resistant technologies, especially those based on hardfacing overlay materials, are proving essential in reducing equipment downtime, extending service life, and cutting total maintenance costs. Among these, JH Hardfacing is delivering specialized solutions that combine metallurgical performance, field adaptability, and customization.
Hardfacing is the process of depositing wear-resistant materials—usually high-chromium or complex carbides—onto the surface of steel parts to withstand extreme operating conditions. Rather than replacing entire components, hardfacing allows users to restore and reinforce existing parts.
Surface hardness up to HRC 58–65 depending on alloy formulation
Overlay thickness from 3mm up to 25mm, tailored to expected wear depth
Uniform carbide distribution ensures resistance to sliding abrasion, particle erosion, and medium impact
Compatible with high-temperature environments up to 650°C (1,202°F)
Excellent metallurgical bonding between base and overlay ensures zero delamination
Custom alloy systems designed to match industry-specific wear patterns
Product Specification Highlights:
Base plate: Q235, Q345, or stainless steel
Overlay: Fe-Cr-C alloy or complex alloy with Nb, Mo, B
Hardness: HRC 60±2 (700–900 HV)
Service life: 5–10 times longer than AR400 or NM400 base steel
Flatness tolerance: ≤3mm/m; Thickness tolerance ±0.5mm
Ideal Applications:
Chutes, hoppers, and transfer points in mining – withstand continuous material impact and abrasion from ore particles
Clinker handling systems in cement plants – high temperature and particle abrasion
Coal feeder and ash pipeline in power plants – prevent thinning and blow-through failure
Mill and fan linings in steelmaking – high flow velocity and dust-laden gas erosion
Why It Works: The high-volume fraction (35–50%) of primary chromium carbides forms a hard matrix resistant to wear from fine, sharp particles. In real use cases, JH wear plates have maintained structural integrity after 12+ months in cement separator blade assemblies—3 times longer than traditional NM500 wear steel.
Product Specification Highlights:
Wire types: Open arc or submerged arc
Diameter: 1.6mm, 2.8mm, 3.2mm, 4.0mm
Deposition rate: Up to 6–8kg/hour
Hardness range: HRC 55–65
Microstructure: Uniform carbides in austenitic or martensitic matrix
Ideal Applications:
On-site repair of excavator buckets, crushers, and mixer blades
Rotating equipment such as screw conveyors, fans, and impellers
Coal mill components requiring high-volume rebuilding without disassembly
Why It Works: JH flux-cored wire enables high deposition efficiency and low spatter, reducing post-weld processing. In mobile mining repair operations, it cuts surfacing time by 30% and extends reworked part life by up to 500%, compared to base-only steel components.
Product Specification Highlights:
Inner overlay: 3–8mm chromium carbide, welded spirally or longitudinally
Outer pipe: Seamless or welded mild steel pipe (Q235, Q345)
Hardness: HRC 58–62
Bend radius: Customizable (≥3D recommended)
Service temperature: Up to 650°C
Ideal Applications:
Pneumatic ash transport lines in power plants
Slurry or mineral tailing transport in mining
Clinker or cement dust flow systems
Why It Works: These pipes provide 2–4 times the wear resistance of ceramic-lined steel and offer better flexibility against thermal shock. One power plant using JH elbows in its dry bottom ash system reported a 70% drop in replacement frequency over two maintenance cycles.
JH Hardfacing supports OEMs and maintenance contractors with tailored solutions:
CAD-based wear part modeling
Custom plate cutting: flame, plasma, laser
Complex forming: cone, spiral, elbow, cylinder, dome
Bimetal wear part assembly with bolting or welding options
Technical guidance for surfacing process selection
Whether for bulk wear plate projects or complex 3D pipe systems, JH’s engineering team ensures wear protection performance matches actual wear mechanisms—abrasion, impact, gouging, or erosion.
With proven data on wear resistance, service life, and field performance, JH Hardfacing offers industry-ready solutions that help clients:
Extend component life by up to 10×
Reduce unexpected shutdowns by 40–60%
Optimize inventory and maintenance budgets
Improve equipment uptime in high-stress operations
As industries continue seeking durable, long-term protection for critical components, wear-resistant surfacing will remain a cornerstone of industrial efficiency—and JH Hardfacing is ready to lead this transformation with customized, data-driven solutions.
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