1.2493 Steel Overview:
1.2493 is a high-carbon, high-chromium cold work tool steel renowned for its exceptional wear resistance, robust toughness, and impressive hardness retention at elevated temperatures. As a member of the high-alloyed chromium-molybdenum-vanadium steel family, this premium material is indispensable in the manufacturing sector, particularly for crafting cutting tools, forming dies, and other critical cold work applications.
Chemical Composition:
Properties:
1. High Wear Resistance: Thanks to its substantial chromium content, 1.2493 steel offers outstanding wear resistance, making it ideal for applications subjected to abrasive wear and heavy loads.
2. Good Toughness: Despite achieving high hardness levels, 1.2493 steel maintains excellent toughness, minimizing the risk of fractures or failures during usage.
3. High Hardness Retention: The alloy composition ensures 1.2493 steel retains remarkable hardness even at elevated temperatures, guaranteeing consistent cutting performance and dimensional stability.
4. Excellent Edge Retention: When subjected to proper heat treatment, 1.2493 steel maintains a sharp cutting edge, enhancing productivity and extending the lifespan of tools.
Applications:
1. Cutting Tools: 1.2493 steel is the material of choice for manufacturing cutting tools such as knives, blades, and shear blades, which are essential for cutting and shaping diverse materials, including metals, plastics, and rubber.
2. Forming Dies: This steel is extensively used in producing forming dies for cold forming and shaping operations, encompassing bending, drawing, and extrusion.
3. Cold Work Applications: Due to its high hardness, superior wear resistance, and exceptional toughness, 1.2493 steel is ideal for various cold work applications that demand precision machining and rigorous dimensional accuracy.
4. Punching Tools: It's widely employed in crafting punching tools designed for perforating or stamping sheet metal, plastics, and other materials.
Heat Treatment:
Annealing: Heat uniformly at 800-850°C (1472-1562°F), hold for sufficient time, then slowly cool in the furnace to below 600°C (1112°F) to ensure complete annealing.
Quenching: Preheat gradually to the austenitizing temperature of 980-1020°C (1796-1868°F), then quench rapidly in oil or air to attain full hardness.
Tempering: Immediately post-quenching, temper at 180-220°C (356-428°F) for 2 hours, followed by air cooling to achieve the optimal balance of hardness and toughness.
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