X153CrMoV12 Steel Grade: The Go-To Choice for High Performance Tools

Specification of X153CrMoV12 Steel Grade:

1. Material Name: X153CrMoV12 Steel Grade
2. Standard: DIN EN ISO 4957
3. Equivalent Grades: AISI D2, JIS SKD11
4. Chemical Composition:
– Carbon (C): 1.45 – 1.60%
– Chromium (Cr): 11.00 – 12.00%
– Molybdenum (Mo): 0.70 – 0.90%
– Vanadium (V): 0.50 – 0.70%
– Silicon (Si): 0.10 – 0.40%
– Manganese (Mn): 0.20 – 0.40%
– Phosphorus (P): max 0.030%
– Sulfur (S): max 0.030%
5. Density: 7.70 g/cm3
6. Hardness: 58 – 62 HRC (Rockwell C hardness)
7. Melting Point: 1421°C
8. Young’s Modulus: 210 GPa
9. Thermal Conductivity: 23 W/m·K
10. Coefficient of Thermal Expansion: 10.9 x 10^-6 /°C
11. Magnetic Properties: Slightly magnetic
12. Heat Treatment:
– Annealing: Heat at 850-900°C for 2-6 hours followed by slow cooling in the furnace (approx. 20°C per hour) to about 600°C, then air cooling.
– Quenching: Preheat at 850-900°C, then raise the temperature to 1000-1040°C and soak for about 30 minutes. Quench in oil or air.
– Tempering: Heat to the desired tempering temperature between 150-500°C and hold for the desired time. Air cool.
13. Applications:
– High-performance cutting tools such as knives, blades, punches, and dies.
– Cold working tools and dies for forming, bending, cutting, and punching operations.
– Plastic mold tools for injection molding, extrusion, and blow molding.
– Shear blades, woodworking tools, and reamers.
14. Advantages:
– Excellent wear resistance and high hardness for extended tool life.
– Good dimensional stability and resistance to deformation during heat treatment.
– High toughness and good resistance to chipping, making it suitable for heavy-duty applications.
– High compressive strength, enabling it to withstand high loads and pressures.
– Good machinability and grindability, allowing for ease of tool production and sharpening.
– Good resistance to corrosion and oxidation, ensuring tool longevity.
15. Limitations:
– Relatively high cost compared to lower-grade tool steels.
– Limited resistance to thermal shock and high-temperature softening.
– Requires proper heat treatment and maintenance to maximize performance and lifespan.
X153CrMoV12 Steel grade
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