Isis Metals, a trusted metal supplier based in Manila, Philippines, provides top-notch **P20 Tool and Die Steel Bars** perfect for mold-making and various tooling tasks. P20 is a pre-hardened alloy steel celebrated for its outstanding machinability, consistent hardness, and excellent polishability, making it a go-to choice for plastic injection molds and die-casting tools. Isis Metals offers P20 bars in multiple sizes and conditions, ready for immediate fabrication. With a commitment to reliable sourcing, rigorous quality control, and attentive customer service, Isis Metals has become a favored supplier for toolmakers and manufacturers in need of durable, dependable steel solutions for medium-duty tool and die applications.
P20 tool steel generally consists of 0.28–0.40% carbon, 0.60–1.00% manganese, 0.90–1.20% chromium, along with trace amounts of molybdenum, nickel, and silicon. It’s pre-hardened to around 280–320 HB (28–34 HRC), striking a great balance between strength and toughness. With a tensile strength of about 965 MPa (140,000 psi), P20 also boasts good dimensional stability during machining. Its uniform hardness across the cross-section ensures reliable performance in mold cavities and cores. While it can be nitrided or chrome plated for added surface hardness, it usually doesn’t need further heat treatment, which helps save time and costs for mold makers and fabricators.
| 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.
P20 Tool and Die Steel Bars find extensive use in the plastics industry for crafting injection molds, blow molds, and die-casting dies. Its superb polishability makes it ideal for mold cavities that demand a high-quality surface finish. Additionally, P20 is utilized in holders, jigs, bolsters, and tooling frames. In sectors like automotive and consumer goods, it supports medium-run mold applications, proving its versatility and reliability in various manufacturing processes.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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