Hemi Metals, based in Hamilton New Zealand, is the leading manufacturer and supplier of high-grade steel products for various industrial applications. A quality-driven company, it has gained recognition through the different types of materials that are offered to customers, like high-demanding Tool and Die Steel P20 bars, which are trusted because of their durability and precision. P20 bars have excellent machinability, hardness, and wear resistance. Therefore, they are used extensively in molds, dies, and tooling. In addition, the products from Hemi Metals have better quality and reliability, and as such, are trusted partners for many industries such as automotive, aerospace, and manufacturing.
Tool and die steel P20 bars contain, by weight, mostly carbon (0.28–0.40%), chromium (1.5–2.0%), manganese (1.50–2.0%), silicon (0.80–1.0%), and trace of sulfur and phosphorus. The common mechanical properties of the grade of steel are tensile strength ranging from 800–1000 MPa, yield strength around 550 MPa, and hardness of 28–32 HRC, besides providing good toughness and impact resistance, excellent for high-performance applications. P20 bars are heat-treated for maximum hardness with excellent machinability and wear resistance. These make them particularly suitable for injection molding, die-casting, and other tooling applications.
| 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 also used for many applications in molds, dies, and tooling components due to their excellent machinability, durability, and resistance to wear. Common uses include injection mold, blow molds, and stamping dies. The high tensile strength and fine grain structure of the steel, which allows it to be heat treated, make it excellent for parts subject to high pressure and friction. P20 bars are also used in making plastic molds, die-casting tools, and punch dies. Their stability under high temperatures and toughness make them essential in high-performance manufacturing environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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