D2 / 1.2379 / X155CrVMo12-1 Tool Steel | High-Carbon, High-Chromium Grade

D2 Tool Steel (X155CrVMo12-1 / 1.2379) is a high-carbon, high-chromium cold work tool steel widely recognized for its exceptional wear resistance, hardness, and toughness. Belonging to the ledeburitic class of steels, it contains a high amount of carbon (~1.5%) and chromium (~12%), which gives it outstanding dimensional stability and resistance to abrasion.

At Nifty Alloys L.L.C., we supply D2 Tool Steel round bars, plates, and sheets that meet international standards. This grade is popular in tool-making, cutting dies, punches, and industrial knives where strength and durability are crucial.

If you’re looking for reliable suppliers of 1.2379 Tool Steel, X155CrVMo12-1 Steel, or D2 Tool Steel, you’re at the right place.

Key Features of D2 / 1.2379 Tool Steel

• High Wear Resistance – Excellent for applications with constant abrasion.
• Good Hardness (up to 60–62 HRC after heat treatment) – Ensures long tool life.
• High Chromium Content (~12%) – Provides better corrosion resistance compared to other tool steels.
• Dimensional Stability – Minimal distortion during heat treatment.
• Excellent Toughness – Withstands heavy loads and stress.
• Versatility – Suitable for a wide range of cold work applications.