Starc Metals stands out as a top-notch manufacturer and supplier located in Canberra, Australia, specializing in high-quality Tool and Die Steel O1 Bars tailored to meet a variety of industrial needs. With a strong commitment to quality, precision, and durability, Starc Metals delivers materials that excel even in the toughest conditions. Our O1 Tool Steel Bars are well-known for their impressive machinability, high hardness, and remarkable dimensional stability after heat treatment. Thanks to our advanced manufacturing techniques and rigorous quality control, we ensure that every O1 Bar provides consistent strength, reliability, and performance for all your toolmaking and engineering projects.
The composition of Tool and Die Steel O1 Bars includes carbon (0.85–1.00%), manganese (1.00–1.40%), chromium (0.40–0.60%), tungsten (0.40–0.60%), and vanadium (0.30%). This carefully balanced mix results in a fine-grained structure that boasts excellent wear resistance and toughness. O1 steel is known for its good hardenability, achieving a Rockwell hardness of 57–62 HRC after oil hardening. It also maintains outstanding dimensional stability during heat treatment, making it perfect for precision tools. The blend of toughness, edge retention, and machinability guarantees reliable performance across a wide range of tooling applications.
| 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 are widely utilized in scenarios where high wear resistance, fine edge retention, and dimensional stability are crucial. They are perfect for crafting cutting tools, dies, punches, blanking tools, gauges, and forming dies. Additionally, O1 Bars are employed in the production of woodworking tools, knives, and precision components that require a sharp, long-lasting edge. Thanks to their excellent machinability and ability to maintain tight tolerances, O1 steel is a favorite among toolmakers and engineers in the automotive, aerospace, and industrial sectors, known for its reliability and versatility in demanding tasks.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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