Maduka Metals, a reputable manufacturer and supplier located in Abuja, Nigeria, specializes in high-quality Tool and Die Steel D2 Bars. These bars are celebrated for their remarkable hardness, wear resistance, and dimensional stability. Each bar is meticulously crafted to meet international standards, guaranteeing reliable performance in challenging tooling and machining tasks. Maduka Metals is dedicated to providing dependable steel solutions for various industries, including automotive, aerospace, and manufacturing. Thanks to cutting-edge processing technology and strict quality control, the company ensures that every Tool and Die Steel D2 Bar delivers outstanding durability, machinability, and resistance to deformation, even under intense stress and wear.
The composition of Tool and Die Steel D2 Bars includes carbon (1.5%), chromium (12%), molybdenum (0.9%), vanadium (0.9%), along with trace amounts of manganese and silicon. This blend of high carbon and chromium results in exceptional hardness and excellent resistance to abrasion and wear. Mechanically, D2 steel boasts a tensile strength of around 1000–1250 MPa in its annealed state and can achieve a hardness of 58–62 HRC after heat treatment. It maintains excellent dimensional stability during hardening and tempering, making it perfect for precision dies, cutting tools, and forming applications that require a long tool life.
| ASTM A681 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| D2 | 1.4 | 1.6 | 0.1 | 0.6 | 0.03 | 0.03 | 0.1 | 0.6 | 11 | 13 | 0.5 | 1.1 | 0.7 | 1.2 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| 1.2379/X153CrMo12 | 1.45 | 1.6 | 0.2 | 0.6 | 0.03 | 0.03 | 0.15 | 1.6 | 11 | 13 | 0.7 | 1 | 0.7 | 1 |
| JIS G4404 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| SKD11 | 1.4 | 1.6 | 0.6 | 0.03 | 0.03 | 0.4 | 11 | 13 | 0.2 | 0.5 | 0.8 | 1.2 | ||
| Mechanical Properties | Metric | Imperial |
| Hardness, Knoop (converted from Rockwell C hardness) | 769 | 769 |
| Hardness, Rockwell C | 62 | 62 |
| Hardness, Vickers | 748 | 748 |
| Izod impact unnotched | 77.0 J | 56.8 ft-lb |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 |
| Grades | D2 | 1.2379/X153CrMo12 | SKD11 |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Thermal expansion | 10.4 x 10-6/ºC | 20-100 | – |
Tool and Die Steel D2 Bars can be welded, but it's challenging due to their high carbon content. Preheating, post-weld heat treatment, and using specific filler materials are essential.
Tool and Die Steel D2 Bars are semi-corrosion-resistant due to high chromium content (12%). While not fully stainless, they offer moderate resistance to rust in less aggressive environments.
Tool and Die Steel D2 Bars are extensively utilized in industries that prioritize high wear resistance and precision. They are particularly suited for crafting blanking dies, forming tools, shear blades, punches, and industrial knives. In the automotive and aerospace fields, D2 Bars are essential for manufacturing cutting and stamping components that endure significant wear. They are also used in cold-working processes, such as drawing and extrusion dies, where exceptional edge retention is crucial. Furthermore, Tool and Die Steel D2 Bars are highly regarded in the tooling and engineering industries for their toughness, stability, and ability to withstand deformation under repeated mechanical stress.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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