Manganese Steel Series Products
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  • Manganese Steel Series Products

1. Introduction to the High Manganese Steel Series Products

High manganese steel is a wear-resistant steel series with high toughness and strong work hardening characteristics as its core advantages, especially suitable for conditions with strong impact and high stress. Its typical grades are Mn13 (ZGMn13) and a series of modified varieties.

Core Characteristics:

Characteristics

Principle

Numerical Performance

Work Hardening Ability

Martensitic phase transformation occurs on the surface layer under impact load, with hardness jumping from HB200 to HB500+

Hardening layer depth: 5-15mm

Ultra-high Toughness

Fully austenitic structure absorbs impact energy, tensile strength ≥800MPa

Impact toughness: ≥150J (maintained at -40°C)

Impact Fatigue Resistance

Under cyclic impact, the hardening layer and tough matrix cooperate to resist cracking

3-5 times higher crack resistance than ordinary steel

2. Mainstream Grades and Applicable Scenarios

1. Classic Mn13 series (National Standard ZGMn13) Composition: C 1.1-1.4%, Mn 11-14%, Si 0.3-0.8%, P/S ≤0.05% Heat treatment: 1050°C water quenching (austenitizing + water quenching)

Applicable parts: Jaw crusher jaw plates (strong impact conditions), cone crusher mantle, excavator bucket teeth (requires overlay welding reinforcement)

High Manganese Steel

Grade

Core Improvement

Performance Enhancement

Typical Application Scenarios

Mn13Cr2

Add 1.5-2.5% Cr

Hardness ↑15%, wear resistance ↑30%

Iron ore crusher liners

Mn18Cr2

Ultra-high manganese + chromium (Mn ≥17%)

Initial hardness HB250, hardening layer HB550+

Large gyratory crusher body liners

Mn13Mo

Add 0.2-0.5% Mo

Grain refinement, fatigue resistance ↑50%

Vibrating screen housing, hammer crusher hammers

Mn13RE

Add 0.03-0.1% mixed rare earth elements

Impact toughness ↑20%, improved low-temperature toughness

Polar mining equipment parts

3. Key Controls in Manufacturing Process

Smelting and Casting

Vacuum deoxidation: reduce oxygen content to ≤30ppm (reduce inclusions)

Low-temperature pouring: 1480-1520°C (prevent manganese burn-off)

Riser optimization: electromagnetic hot riser shrinkage compensation, shrinkage porosity rate ↓90%

Surface Strengthening Technology

Explosion hardening: pre-harden surface layer to HB350, reduce early wear

Tungsten carbide overlay welding: overlay WC on tooth tips/edges, life ↑200%

Three irreplaceable scenarios for high manganese steel

Super strong impact: crusher feed inlet with ore free-fall height >5m

Multi-directional stress: cone crusher mantle (three-dimensional compressive stress)

Extremely low temperature environment: -50°C polar mining equipment (austenitic structure does not embrittle)

High manganese steel, with its unique property of "the harder the impact, the harder the steel," remains the material of choice in high-energy wear scenarios in mining, metallurgy, building materials, and other fields.

Keywords

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Manganese Steel Series Products
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  • Manganese Steel Series Products

Manganese Steel Series Products

Our company specializes in manufacturing wear-resistant castings for grinding equipment, as well as main bearing shells and support shells of various specifications for mills.

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