Sahil Metals, located in Riyadh, Saudi Arabia, stands out as a premier manufacturer and supplier of top-notch Tool and Die Steel O1 Bars. Known for our commitment to quality and precision, we provide steel solutions that are perfect for tooling and various industrial applications. Our O1 tool steel bars are crafted to meet the highest international standards, ensuring excellent machinability, dimensional stability, and wear resistance. With a strong focus on reliability, timely delivery, and customer satisfaction, Sahil Metals has earned a reputation as a trusted partner for clients in need of dependable O1 tool steel products throughout Saudi Arabia and the Middle East.
Tool and Die Steel O1 Bars are oil-hardening tool steels, primarily made up of about 0.9% carbon and 1.0–1.4% manganese, with chromium (0.4–0.6%), tungsten, and vanadium added to boost hardenability and wear resistance. O1 is known for its excellent dimensional stability during heat treatment and good toughness, making it suitable for general-purpose tooling. After proper hardening and tempering, the steel typically achieves a hardness of 57–62 HRC. With moderate compressive strength and good machinability, O1 is perfect for applications that demand precision, edge retention, and minimal distortion during hardening.
| 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.
O1 Tool Steel Bars are widely utilized in general-purpose tooling applications where high hardness and dimensional accuracy are essential. They’re great for crafting cutting tools, dies, punches, knives, broaches, and gauges. Thanks to O1’s stability during heat treatment, it’s particularly valuable for tools that require tight tolerances and consistent performance. In sectors like metal stamping, woodworking, and mold making, O1 tool steel strikes a cost-effective balance between wear resistance, toughness, and ease of machining, making it a favorite among toolmakers and engineers alike.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sahil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Riyadh, Saudi Arabia
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