X153CrMoV12 / 1.2379 Tool Steel

Delivery forms of steel circle 1.2379 / Kh12MF

Steel Round Bar 1.2379 / X153CrMoV12 / Х12МФ

General Characteristics

Steel 1.2379 (X153CrMoV12, Х12МФ) is a high-carbon, high-chromium tool steel known for its exceptional wear resistance, hardness, and toughness. It is widely used in applications requiring high durability and precision cutting.

Chemical Composition (%)

The main elements in the composition of 1.2379 steel:

• Carbon (C): 1.45 – 1.60
• Chromium (Cr): 11.00 – 12.50
• Molybdenum (Mo): 0.70 – 1.00
• Vanadium (V): 0.70 – 1.00
• Manganese (Mn): ≤ 0.40
• Silicon (Si): ≤ 0.40
• Phosphorus (P): ≤ 0.030
• Sulfur (S): ≤ 0.030

Mechanical Properties

• Hardness after heat treatment: 58-62 HRC
• Tensile strength: up to 2200 MPa
• Yield strength: up to 1700 MPa
• Impact toughness: excellent wear resistance and shock load tolerance

Key Advantages

✅ Outstanding wear and abrasion resistance ✅ High hardness after heat treatment ✅ Excellent dimensional stability ✅ Good toughness and shock resistance

Applications

🔹 Manufacturing of cutting tools, knives, and shear blades 🔹 Cold work tooling such as stamping dies and punches 🔹 High-wear components in metal forming 🔹 Extrusion tools and high-performance industrial applications