- DIN 2379
Standards : X153CrMoV12
| Element | Content (%) |
|---|---|
| Carbon (C) | 1.40 – 1.60 |
| Chromium (Cr) | 11.0 – 13.0 |
| Molybdenum (Mo) | 0.70 – 1.20 |
| Vanadium (V) | 0.70 – 1.00 |
| Manganese (Mn) | 0.20 – 0.60 |
| Silicon (Si) | 0.10 – 0.60 |
| Nickel (Ni) | ≤ 0.30 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
Grade Brief
AISI D2 is a high-carbon, high-chromium alloy tool steel renowned for its exceptional wear resistance and abrasion resistance, achieved through the large volume of carbides in its microstructure. It is particularly suited for long production runs in cold work applications where both high wear resistance and high compressive strength are required.
Key Features
- High wear and abrasion resistance.
- Good dimensional stability during heat treatment.
- Moderate corrosion resistance in hardened and polished condition.
- Widely used in blanking dies, forming dies, punches, and cutting tools.
Mode of Supply
Kuber Multi Metals is the largest stockiest and supplier of HCHCR D2 Steel in flat, square and round bar. We provide steel in all sizes as your requirements. HCHCR D2 die steel is available in flat, square and round shape. Consult our team who will assist you for HCHCR D2 steel query.
D2 Tool Steel
| Category | Specification |
|---|---|
| Standard | AISI D2 / ASTM A681 / UNS T30402 |
| Type | Cold Work Tool Steel (High Carbon – High Chromium) |
| Supply Condition | Annealed (~HB 200–250), De-carb-free rounds, flats, and squares |
Steel Properties
HCHCR-D2 steel is Cold Work Steel with High Carbon High Chromium contents. The Quality with high wear resistant and toughness properties due to Vanadium addition of 0.90% . Normally it supply condition is an Annealed and will offer hardness to reach 57-59 HRC. It can be machinable in the annealed condition. D2 is the superior steels than D3 due to high alloys properties.
| Property | Value |
|---|---|
| Hardness (Annealed) | ~HB 200–250 |
| Hardness (Hardened & Tempered) | 56–62 HRC |
| Tensile Strength (Ultimate) | ~1900–2100 MPa |
| Compressive Strength | Very High |
| Toughness | Moderate (lower than lower-alloy steels) |
| Wear Resistance | Excellent |
Physical Properties
The physical properties can vary slightly depending on the specific composition and heat treatment of the D2/ DIN 2379/ AISI D2 steel. Its always recommended to refer to the manufacturer’s specifications for precise information.
| Temp. Range (°C) | 20–100 | 20–200 | 20–300 | 20–400 |
|---|---|---|---|---|
| Expansion Coefficient | 10.6 | 11.5 | 11.8 | 12.3 |
| Temperature (°C) | 20 | 350 | 700 |
|---|---|---|---|
| Conductivity | 16.7 | 20.5 | 24.2 |
Heat Treatment
| Process | Temperature Range | Cooling Method | Result |
|---|---|---|---|
| Annealing | 845–900°C | Furnace cool (10–20°C/hr) to 600°C, then air | HB 200–250 |
| Stress Relieving | 650–700°C | Furnace cool | Reduces stresses |
| Hardening | Austenitize at 1010–1040°C (after preheats at 450–500°C & 850–900°C) |
Air/gas quench | Full hardness |
| Tempering | 150–540°C (double tempering recommended) |
Air cool | 56–62 HRC |
| Cryogenic (optional) | –80°C to –196°C | Deep freeze, then temper | Reduces retained austenite |
Thermal Properties
| Property | Value |
|---|---|
| Operating Temperature Limit | Up to 540–600°C |
| Thermal Conductivity (20°C) | ~24–26 W/m·K |
| Specific Heat Capacity (20°C) | ~460 J/kg·K |
| Coefficient of Expansion | ~11.5 × 10⁻⁶ /°C (20–600°C) |
Application
Blanking and forming dies, Punches and shear blades, Cold extrusion tools, Industrial knives and cutting tools, Long-run production tooling
Conclusion
AISI D2 tool steel is a high-carbon and high-chromium cold work steel that produces excellent wear management, dimensional stability, and compressive strength. Because it has a high carbide composition, it is particularly applicable with long production tooling, wherein durability and precision are paramount. Though comparable in toughness to lower-alloy steels, its capacity to remain hard and resist abrasion makes it one of the most popular tool steels in blanking dies, forming dies, punches, cutting tools, and industrial knives.
Addition to other Grades
HCHCR-D2 Steel , HCHCR-D3 Steel , P20+Ni Steel , P20 Steel , P20 HH , Stavax ESR , DB6 Steel , H13 Steel, H11 Steel, H21 Steel, H10 Steel, H12 Steel, M2 Steel, M35 Steel, M42 Steel, T1 Steel, C 45, MS Steel, En 31, En 24 , En 353 , En 19 , En 8 , En 8D , En 9 , En 47 , 20 Mncrs , SAE8620 , DIN 2379 Steel, DIN 2080 Steel, DIN 2738 Steel, DIN 2311 Steel, DIN 2714 Steel, DIN 2344 Steel , DIN 2343 Steel, DIN 2581 Steel, DIN 2365 Steel, DIN 2606 Steel, DIN 3343 Steel, DIN 3243 Steel, DIN 3247 Steel, DIN 3355 Steel , AISI D2 Steel, AISI D3 Steel, AISI P20+Ni Steel, AISI P20 Steel, AISI L6 Steel, AISI H13 Steel, AISI H11 Steel, AISI H21 Steel, AISI H10 Steel, AISI H12 Steel, AISI M2 Steel , AISI M35 Steel, AISI M42 Steel , AISI T1 Steel
