Тра . 09, 2025 12:22 Back to list
(austenitic manganese steel)
Austenitic manganese steel, specifically grades containing 12-18% manganese content, demonstrates exceptional work-hardening capabilities. This high manganese austenitic steel variant achieves surface hardness up to 550 HB through impact-induced deformation, while maintaining core toughness exceeding 200 J at -40°C. The metastable austenitic structure enables...
Comparative testing reveals austenitic manganese steel
's superiority:
Property | High Mn Austenitic | Martensitic Steel | Chromium Carbide |
---|---|---|---|
Wear Rate (mm³/km) | 0.15 | 0.42 | 0.08 |
Impact Toughness (J) | 185 | 35 | 12 |
Hardening Depth (mm) | 25-40 | 5-8 | 2-3 |
Field data shows 30% longer service life in rail crossing applications versus boron-treated steels.
Supplier | Mn Content (%) | UTS (MPa) | Price/Ton ($) |
---|---|---|---|
SteelCo AB | 14.2 | 980 | 2,450 |
Metallurgix LP | 12.8 | 920 | 2,150 |
AlloyWorks Corp | 16.5 | 1,050 | 2,780 |
Custom austenitic manganese formulations address:
A 3-year field trial in Chilean copper mines demonstrated:
Water-quenching protocols achieving cooling rates of 50°C/sec prevent carbide precipitation. Post-machining stress relief at 280-320°C maintains dimensional stability within ±0.05mm/m.
Recent advancements in micro-alloying with 0.08% niobium show 15% improvement in cyclic impact resistance. Emerging applications include renewable energy component manufacturing and advanced material handling systems.
(austenitic manganese steel)
A: Austenitic manganese steel is a high-alloy steel containing 10-14% manganese, known for its exceptional toughness, wear resistance, and work-hardening properties. It retains an austenitic structure at room temperature due to manganese's stabilizing effect. Common applications include mining equipment and railway components.
A: High manganese austenitic steel hardens under impact or pressure, increasing surface hardness while maintaining a ductile core. This work-hardening behavior makes it ideal for abrasive environments. Its microstructure prevents crack propagation under stress.
A: Austenitic manganese steel excels in impact and abrasion resistance, critical for crusher liners and shovel buckets. Its ability to withstand repeated deformation minimizes wear. The material also resists corrosion in harsh mining conditions.
A: Welding austenitic manganese steel requires preheating and specialized electrodes to avoid brittleness. Machining is challenging due to work-hardening, often necessitating grinding or casting. Post-processing heat treatment may restore ductility.
A: Unlike carbon steels, austenitic manganese steel maintains non-magnetic austenite structure without quenching. It offers superior impact absorption and strain hardening. Carbon steels lack comparable wear resistance in high-stress applications.
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