Maduka Metals, a prominent manufacturer and supplier located in Abuja, Nigeria, is all about delivering top-notch Tool and Die Steel O1 Bars that are crafted for precision and durability. These bars are specifically designed to cater to the rigorous demands of toolmaking, die production, and industrial machining. With a strong focus on quality, Maduka Metals guarantees that each O1 Bar offers outstanding performance, precise dimensions, and consistent quality. The company caters to a diverse array of industries, including automotive, aerospace, and manufacturing, providing reliable steel solutions that boast superior hardness, wear resistance, and machinability for essential engineering and tooling tasks.
Tool and Die Steel O1 Bars are primarily made up of carbon (around 0.9%), chromium (0.5%), manganese (1.2%), tungsten (0.5%), along with trace amounts of vanadium and silicon. This unique blend results in remarkable hardness, dimensional stability, and toughness after oil hardening. In terms of mechanics, O1 steel shows a tensile strength of about 700–900 MPa in its annealed state and can reach a Rockwell hardness of up to 64 HRC when fully hardened. The fine-grained structure of the material ensures consistent wear resistance and excellent edge retention, making it perfect for precision tools and dies that require long-lasting reliability.
| CHEMICAL PROPERTIES | O1 STEEL (%) |
|---|---|
| Carbon | 0.85-1.00 |
| Manganese | 1.00-1.40 |
| Silicon | 0.50 |
| Chromium | 0.40-0.60 |
| Nickel | 0.30 |
| Tungsten | 0.40-0.60 |
| Vanadium | 0.30 |
| Copper | 0.25 |
| Phosphorus | 0.03 |
| Sulfur | 0.03 |
| MECHANICAL PROPERTIES | O1 STEEL (Imperial) |
|---|---|
| Tensile Strength | 245000 psi |
| Yield Strength | 218000 psi |
| Elongation at Break | 0.00% |
| Modulus of Elasticity | 31000 ksi |
| Hardness (Rockwell) | 50 |
| Hardness (Vickers) | 517 |
| Hardness (Knoop) | 513 |
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 |
| Grades | O1 | 1.2510/100MnCrW4 | SKS3 |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Thermal expansion | 10.6 x 10-6/ºC | 20-260 | – |
When choosing O1 tool and die steel bars, consider factors like hardness, wear resistance, machinability, heat treatment requirements, intended application (e.g., cutting, stamping), and cost-effectiveness for long-term use.
O1 tool and die steel bars have moderate resistance to corrosion due to their carbon content and alloy composition. However, they are not stainless and can rust without proper maintenance, such as coating or regular oiling.
Tool and Die Steel O1 Bars find extensive application in tool and die manufacturing, machining, and metalworking industries. They are particularly well-suited for creating cutting tools, gauges, punches, dies, reamers, and knives that require high dimensional stability and wear resistance. In the automotive and aerospace fields, O1 Bars are utilized for forming and shaping components that endure repeated stress. Their exceptional machinability and heat-treating properties also make them ideal for molds, shear blades, and precision instruments. All in all, Tool and Die Steel O1 Bars are highly regarded for their durability, hardness, and ability to maintain sharp edges even in challenging working conditions.
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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