Maria Pipes and Tubes is a reliable manufacturer and supplier of Tool and Die Steel D2 Bars based in Kuala Lumpur, Malaysia. We pride ourselves on delivering top-notch products that cater to precision tooling and various industrial applications. D2 steel, known for its high carbon and chromium content, boasts remarkable wear resistance, impressive hardness, and excellent toughness. Our D2 bars undergo rigorous quality control to guarantee dimensional accuracy and consistency, making them perfect for challenging environments. With their outstanding durability and performance, these bars find extensive use in industries like automotive, aerospace, manufacturing, and engineering, ensuring they stand the test of time in heavy-duty applications.
Tool and Die Steel D2 Bars generally consist of 1.50–1.60% Carbon, 11–13% Chromium, 0.70–1.20% Molybdenum, about 0.90% Vanadium, along with trace amounts of Manganese and Silicon. This well-balanced alloy composition results in impressive hardness (reaching up to 60–62 HRC after heat treatment), excellent wear resistance, and high compressive strength. D2 steel maintains its dimensional stability during heat treatment and offers exceptional resistance to abrasion, deformation, and impact. With a blend of strength, toughness, and durability, these bars are perfect for crafting high-precision industrial tools that perform reliably under demanding conditions.
| 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 are widely utilized in the production of precision dies, cutting tools, punches, shear blades, industrial knives, and forming tools. Their remarkable hardness and wear resistance make them ideal for applications that involve repeated impact and abrasive wear. In the automotive sector, they are essential for stamping dies and forming molds. In aerospace, they are used in components that demand high strength and stability. Additionally, they find applications in plastic molding, extrusion dies, and cold work processes where precision and durability are crucial for optimal performance.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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