Typically, P20 steel includes chromium (Cr), molybdenum (Mo), and manganese (Mn), along with carbon (C) as its primary alloying elements. This composition lends the steel its strength, toughness, and wear resistance. Pre-hardened to about 28–32 HRC, it can be machined directly without needing heat treatment. It boasts a tensile strength of around 1000 MPa and good ductility, with a Brinell hardness ranging from 280 to 325 HB. This combination ensures excellent machinability and dimensional stability during tooling operations.
Typically, P20 steel includes chromium (Cr), molybdenum (Mo), and manganese (Mn), along with carbon (C) as its primary alloying elements. This composition lends the steel its strength, toughness, and wear resistance. Pre-hardened to about 28–32 HRC, it can be machined directly without needing heat treatment. It boasts a tensile strength of around 1000 MPa and good ductility, with a Brinell hardness ranging from 280 to 325 HB. This combination ensures excellent machinability and dimensional stability during tooling operations.
| C % | Mn % | Si % | Cr % | Mo % |
| 0.40% | 1.00% | 0.40% | 1.20% | 0.35% |
| Properties | Metric |
| Hardness, Brinell (Typical) | 300 |
| Hardness, Rockwell C (Typical) | 30 |
| Tensile Strength, Ultimate | 965-1030 MPa |
| Tensile Strength, Yield | 827-862 MPa |
| Elongation At Break (In 50 Mm (2″)) | 20.00% |
| Compressive Strength | 862 MPa |
| Charpy Impact (V-Notch) | 27.1-33.9 J |
| Poisson’s Ratio | 0.27-0.30 |
| Elastic Modulus | 190-210 GPa |
| Country | USA | German | GB/T | JIS |
| Standard | ASTM A681 | DIN EN ISO 4957 | GB/T 1299 | |
| Grades | P20 | 1.2311 | 3Cr2Mo | PDS-3 |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Thermal Expansion | 12.8 X 10-6/ºC | 20-425 | – |
When choosing P20 tool and die steel bars, consider machinability, toughness, hardness, heat treatment capabilities, corrosion resistance, application requirements, cost-effectiveness, and availability of suitable sizes for your specific needs.
Tool and die steel P20 bars are typically sized by their diameter and length, with common diameters ranging from 1 inch to 10 inches, and lengths ranging from 10 to 20 feet.
Tool and Die Steel P20 Bars are widely utilized in the production of plastic injection molds, die-casting dies, extrusion dies, and forming tools. Their superb machinability and consistent hardness make them perfect for crafting large molds with intricate designs. Additionally, P20 bars find applications in automotive tooling, electronic housing molds, and frames for heavy-duty stamping tools. The high polishability of P20 makes it ideal for molds that require a fine surface finish. Their durability under repeated mechanical and thermal stress makes them a dependable choice for high-volume production environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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