We supply and export O1 Tool Steel in plates, sheets, bars, blocks, and flats to industries across the world. A cold-work oil-hardening tool steel, O1 has good wear resistance, toughness, and machinability, as well as high dimensional stability following heat treatment.
If you're searching for a reliable steel grade for gauges, punches, knives, or dies, O1 Tool Steel is your affordable option. With ISO-certified quality, fast delivery, and custom sizes, Nifty Alloys is the partner of choice for O1 Tool Steel.
What is O1 Tool Steel?
O1 Tool Steel is a cold-work, oil-hardening tool steel that delivers a balance of toughness, wear resistance, and machinability. Unlike air-hardening grades such as A2, O1 hardens in oil, which minimizes distortion and provides excellent dimensional stability.
Because of its affordable cost and ease of machining, O1 is one of the most widely used tool steels for general-purpose tooling.
- Also known as: DIN 1.2510, JIS SKS3, EN 90MnCrV8
- Category: Cold Work Tool Steel
- Hardness: 57–62 HRC after heat treatment
Applications of O1 Tool Steel
Chemical Composition (Typical)
Ground Flat Stock
Forging
Equivalent Grades of O1 Tool Steel
Available Forms & Size Range
Heat Treatment & Hardening Process
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Nifty Alloys LLC is a trusted O1 tool steel supplier in Dubai, UAE, offering high-quality oil-hardening cold work steel conforming to UNS T31501 / DIN 1.2510 / ASTM A681. This grade is widely used in cutting tools, dies, punches, gauges, and knife blades due to its excellent hardness, wear resistance, and dimensional stability . O1 tool steel provides reliable performance with good machinability and predictable heat treatment characteristics. We supply this material in bars, plates, sheets, and custom-cut sizes, all with Mill Test Certificates (MTC) for full traceability. Nifty Alloys ensures fast delivery across GCC (UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain) and global exports to Europe, Asia, Africa, and the Americas.
