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Manganese Wear Plate

High manganese steel wear plates offer a combination of impact toughness, abrasion resistance, and work-hardening capability.

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Product Details

Manganese wear plate refers to high manganese (Mn) steel plates that exhibit exceptional wear resistance under impact and abrasion. High manganese steel is widely used in mining, cement, metallurgy, and material handling, particularly for crusher liners, mill liners, and excavator teeth.

While Mn13 is the most commonly used grade, other high manganese grades such as Mn16, Mn17, Mn18, and Mn20 are also available, each tailored for specific wear and impact requirements.

1. High Manganese Steel Grades

1.1 Mn13

Composition:

C: 1.0–1.3%

Mn: 12.0–14.0%

Si: 0.3–1.0%

Cr: ≤1.0%

Characteristics:

Excellent work hardening property

Good toughness and ductility

Hardness increases with impact

Applications:

Crusher liners

Mill liners

Excavator bucket teeth

Heavy-duty mining equipment

1.2 Mn16

Composition:

C: 1.0–1.3%

Mn: 15.0–17.0%

Si: 0.3–1.0%

Cr: ≤1.0%

Characteristics:

Higher manganese content than Mn13

Stronger work-hardening ability

Slightly higher surface hardness under impact

Applications:

Medium to high-impact crusher components

Mill liners in abrasive environments

Mining machinery with moderate abrasion

1.3 Mn17

Composition:

C: 1.0–1.3%

Mn: 16.5–17.5%

Si: 0.3–1.0%

Cr: ≤1.0%

Characteristics:

Improved wear resistance over Mn16

High toughness for repeated impact

Better durability in severe wear conditions

Applications:

High-impact crusher plates

Industrial hoppers and chutes

Heavy machinery liners

1.4 Mn18

Composition:

C: 1.0–1.3%

Mn: 17.0–18.0%

Si: 0.3–1.0%

Cr: ≤1.0%

Characteristics:

Very high impact resistance

Excellent work-hardening effect

Suitable for severe abrasion and heavy shock load

Applications:

High-impact crushers

Mining and ore processing machinery

Components exposed to both abrasion and impact

1.5 Mn20

Composition:

C: 1.1–1.3%

Mn: 19.0–21.0%

Si: 0.3–1.0%

Cr: ≤1.0%

Characteristics:

Maximum work-hardening capability

High surface hardness under heavy impact

Exceptional durability in extremely harsh conditions

Applications:

Crusher jaw plates for hard rock

Heavy-duty mill liners

Mining machinery in high-abrasion areas

2. Key Features of Manganese Wear Plates

Work Hardening: Surface hardness increases with impact and abrasion

High Toughness: Core remains ductile to resist cracking

Impact Resistance: Ideal for high-shock environments

Durable: Extends service life, reduces maintenance costs

Customizable: Can be cut, drilled, and welded for specific applications

3. Summary Table of High Manganese Steel Grades

Grade	Mn (%)	C (%)	Hardness (HB)	Key Applications
Mn13	12–14	1.0–1.3	200–260 (annealed)	Crusher liners, mill liners, bucket teeth
Mn16	15–17	1.0–1.3	220–280	Medium-impact crusher parts, mill liners
Mn17	16.5–17.5	1.0–1.3	240–300	High-impact crusher plates, hoppers
Mn18	17–18	1.0–1.3	250–320	Severe abrasion and impact, mining machinery
Mn20	19–21	1.1–1.3	280–360	Hard rock crushers, heavy-duty liners, ore processing equipment

4. Conclusion

High manganese steel wear plates offer a combination of impact toughness, abrasion resistance, and work-hardening capability.

Choosing the right grade depends on abrasion severity, impact intensity, and application environment:

Mn13–Mn16: Moderate wear and impact

Mn17–Mn18: Severe abrasion with repeated impact

Mn20: Extreme wear and heavy-duty impact environments

These materials are widely used in mining, construction, cement, and material handling industries, ensuring longer service life and reduced maintenance costs.