Tool & Alloy Steel Bars
D2, H13, O1 & EN31 tool and bearing steel bars for die making, hot-work tooling and precision bearing components.

Product Overview
Our tool and alloy steel bar range serves die makers, mould manufacturers and bearing component producers with grades selected for wear resistance, toughness or dimensional stability depending on the tooling application.
D2 and O1 cover cold-work die and gauge applications, H13 serves hot-work forging and die-casting dies, and EN31 (52100-equivalent) is the standard for precision bearing races and rollers.
Tool & Alloy Steel Bars — In Our Stockyard
Available Grades
| Grade | Standard | Typical Service |
|---|---|---|
| D2 (AISI D2) | ASTM A681 | High-carbon, high-chromium cold-work die steel |
| H13 (AISI H13) | ASTM A681 | Chromium hot-work steel for forging & die-casting dies |
| O1 (AISI O1) | ASTM A681 | Oil-hardening cold-work steel for gauges & punches |
| EN31 (AISI 52100 equiv.) | IS 1570 | Bearing-grade steel for races & rollers |
Specifications
- Diameter6mm – 250mm
- Length1m – 3m
- ManufactureHot Rolled, Forged, Ground
- ConditionSoft Annealed
- TestingHardness, Dimensional, UT on request
- CertificationEN 10204 3.1 Mill Test Cert.
- PackingBundled, tagged by heat number
- GradesD2, H13, O1, EN31
Technical Note — Bar is supplied soft-annealed with a documented hardness band suited to machining before heat treatment; on request we can pre-select stock closest to your target grain-flow orientation for large die blocks.
Applications
Die & Mould Making
Bearing Components
Press Tooling
Forging Dies
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