Material X120mn12
X120Mn12 is part of a broader family of wear-resistant steels, including high-manganese, medium-manganese, and quenched-tempered low-alloy steels. The choice of grade depends on impact load, abrasion intensity, and service environment, making it essential to match the material with the specific wear conditions.
- Description
X120Mn12 is a high manganese austenitic steel widely used as a wear-resistant material. In addition to X120Mn12, there are several commonly used steel grades designed for high-impact and abrasion-resistant applications. These grades differ mainly in manganese content, carbon content, and hardness, allowing engineers to select the most suitable material for a specific environment.
Common Wear-Resistant Steel Grades
1. High Manganese Steels
These steels are fully austenitic and known for work-hardening under impact. Examples include:
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X120Mn12 / 1.3401: European DIN grade with 11–14% Mn, 1.1–1.4% C.
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Mn13: Chinese GB grade similar to X120Mn12, widely used in mining and crusher applications.
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Hadfield Steel: Classic manganese steel with similar composition, renowned for impact and abrasion resistance.
Applications: Crusher liners, grinding mill liners, bucket liners, impact hammers.
2. Medium Manganese and Medium Carbon Wear Steels
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X100Mn12 / Mn12: Slightly lower carbon content, moderate work-hardening, used where extreme hardness is not required.
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X120Mn13: Higher manganese for better austenite stabilization and wear performance.
Applications: Conveyor liners, chutes, hoppers, and moderately abrasive environments.
3. Low-Alloy Wear-Resistant Steels
These steels combine high hardness with toughness, usually through quenching and tempering. Common examples:
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AR400 / AR500 (Abrasion Resistant Steel): Used in heavy wear applications where high hardness is required from the start.
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NM360 / NM400: Non-magnetic or low-magnetic wear-resistant steels with balanced toughness.
Applications: Mining equipment, earth-moving machines, wear plates.
4. Specialized High Hardness Steels
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Hardox 400 / 500: Quenched and tempered steels with high hardness for extreme abrasion resistance.
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NM600 / NM700: Used in high-impact, high-abrasion environments such as cement, quarry, and heavy machinery.
Summary Table of Common Wear-Resistant Steel Grades
| Category | Typical Grade | Key Features | Main Applications |
|---|---|---|---|
| High Manganese | X120Mn12, Mn13, Hadfield Steel | Austenitic, work-hardening, high toughness | Crusher liners, bucket liners, impact hammers |
| Medium Manganese | X100Mn12, X120Mn13 | Moderate work-hardening, good toughness | Chutes, hoppers, conveyor liners |
| Low-Alloy AR Steel | AR400, AR500, NM360 | Pre-hardened, high abrasion resistance | Mining, earth-moving, wear plates |
| High Hardness Steel | Hardox 400/500, NM600/700 | Extreme hardness, high wear resistance | Cement, quarry, heavy machinery |















