1.2493 Steel Overview:
1.2493 is a high-carbon, high-chromium cold work tool steel celebrated for its superior wear resistance, commendable toughness, and exceptional hardness retention at elevated temperatures. Falling under the category of high-alloyed chromium-molybdenum-vanadium steels, it is extensively used in the manufacturing industry for crafting cutting tools, forming dies, and other cold work applications.
Chemical Composition:
Properties:
1. High Wear Resistance: Thanks to its high chromium content, 1.2493 steel showcases outstanding wear resistance, making it ideal for applications involving abrasive wear and substantial loads.
2. Good Toughness: Despite its impressive hardness, 1.2493 steel maintains remarkable toughness, minimizing the risk of fractures or failures during use.
3. High Hardness Retention: The unique alloy composition of 1.2493 steel ensures it retains high hardness levels even at elevated temperatures, guaranteeing consistent cutting performance and dimensional stability.
4. Excellent Edge Retention: With appropriate heat treatment, 1.2493 steel preserves a sharp cutting edge, resulting in enhanced productivity and prolonged tool life.
Applications:
1. Cutting Tools: 1.2493 steel is widely used for crafting cutting tools like knives, blades, and shear blades, ideal for cutting and shaping various materials, including metals, plastics, and rubber.
2. Forming Dies: It is also employed in manufacturing forming dies used for cold forming and shaping operations, such as bending, drawing, and extrusion.
3. Cold Work Applications: Due to its high hardness, wear resistance, and toughness, 1.2493 steel is ideal for various cold work applications demanding precision machining and dimensional accuracy.
4. Punching Tools: It is utilized in crafting punching tools used for perforating or stamping sheet metal, plastics, and other materials.
Heat Treatment:
Annealing: Heat uniformly at 800-850°C (1472-1562°F), maintain at temperature for adequate time, then cool slowly in the furnace to below 600°C (1112°F) for complete annealing.
Quenching: Preheat slowly to the austenitizing temperature of 980-1020°C (1796-1868°F), then quench swiftly in oil or air to achieve full hardness.
Tempering: Immediately post-quenching, temper at 180-220°C (356-428°F) for 2 hours, followed by air cooling to attain the desired combination of hardness and toughness.
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