High Manganese Hammer Head with Tungsten Carbide Hardfacing
Mn13 / Mn18 Steel Core + WC Overlay
2–3× Longer Wear Life vs. Standard Manganese
Engineered for primary & secondary crushers. The tough manganese base absorbs heavy impact, while the tungsten carbide hardfacing resists severe abrasion and cutting wear.
Hardfacing Hardness
Impact Toughness (Core)
Service Life Extension
Product Overview
This is not just a manganese hammer – it's a dual-metal composite. We start with a high-quality austenitic manganese steel substrate (Mn13 or Mn18), which provides exceptional impact toughness and work-hardening capability. Then, we apply a tungsten carbide (WC) hardfacing layer using a specialized robotic welding process to the main impact and wear zones.
The result? A hammer head that doesn't crack under heavy shock and doesn't wear down quickly against abrasive materials like limestone, clinker, or iron ore. This combination directly attacks your cost per ton – the only metric that truly matters in crushing operations.
Application Note: Ideal for hammer crushers, impact crushers, and reversible impactors in cement plants, mines, and quarries.
Products Description
The table below shows the distinct properties of the manganese core and the WC hardfacing:
| Parameter | Manganese Substrate (Core) | Tungsten Carbide Hardfacing (Overlay) |
| Material Grade | Mn13 (ZGMn13) / Mn18 | WC + Cr + Mo alloy |
| Hardness | HB ≤ 229 (as-cast) → HRC ~45 (work-hardened) | HRC 62 – 66 |
| Impact Toughness | ≥ 150 J (exceptional) | N/A (hardfacing layer) |
| Chemical Composition (Core) | C: 1.1–1.4%, Mn: 12–14%, Si: ≤0.6% | WC: 60–65%, Cr: 4–6%, Mo: 1–2% |
| Thickness (Hardfacing) | - | 6 – 12 mm (customizable per wear zone) |
| Key Feature | Work-hardening, high impact resistance | Extreme abrasion & cutting wear resistance |
Weight tolerance: ±2% to ensure rotor balancing. Dynamic balancing test available upon request.
Why Choose WC-Hardfaced Manganese Hammers?
Dual-Metal Synergy
The tough manganese core absorbs severe impact forces without cracking, while the ultra-hard WC overlay resists gouging and sliding abrasion. This is the optimal combination for crushing highly abrasive materials.
Dramatically Lower Cost Per Ton
Although the initial cost is higher than standard manganese, the 2–3× longer service life means fewer change-outs, less downtime, and significantly lower cost per ton of crushed material.
Precision Workmanship
We use robotic CNC hardfacing to ensure a uniform, dense overlay with minimal dilution (less than 8%). This prevents spalling and ensures the hardfacing stays intact throughout the hammer's life.
Rotor-Friendly Weight Precision
Strict weight control and symmetrical hardfacing application ensure perfect rotor balance. We can provide dynamic balancing certificates to protect your crusher bearings and main shaft.
Typical Applications & Materials
Quarrying
Limestone, basalt, granite aggregates
Cement Plants
Clinker, gypsum, raw meal crushing
Mining
Iron ore, copper ore, gold ore
Recycling
Construction waste, asphalt, slag
Customized hardfacing patterns available for different feed sizes and material hardness.
Manufacturing & Quality Assurance advantage
Heat Treatment
Solution treatment at 1050°C + water quenching for optimal work-hardening matrix.
Robotic Hardfacing
Precision multi-pass welding with controlled interpass temperature to prevent cracks.
NDT & Hardness
100% dye penetrant inspection on hardfacing + hardness test (HRC) for every batch.
Dynamic Balance
Optional dynamic balancing test to ensure stable rotor operation at high speeds.
Customization Capabilities
No two crushers are the same. We offer full customization based on your specific working conditions:
Any size / drawing
Hardfacing thickness (6–15mm)
Patterned overlay (grid / dot / stripe)
Mn13 / Mn18 / Mn22 substrate
Get a precise quote: Please provide your hammer drawing, rotor weight requirements, and material to be crushed (e.g., limestone 150MPa).
Products Description
25+ Years Casting
Manganese & alloy steel expertise
In-House Welding Lab
Proprietary WC alloy formula
Quick Turnaround
Sample in 15 days, bulk in 30 days
Global Exports
Supplied to 40+ countries
Ready to lower your Cost Per Ton?
Send us your drawing and we'll propose the optimal WC hardfacing layout.
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