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Tool Steels
Tool Steels A9
Principle Design Features
This alloy is one of the Cold Work, Medium Air Hardening type tool steels.
Known Forms
Flat Bar
Forgings-Discs
Hexagon Bar
Open Die Forgings
Plate
Round Bar
Seamless Rolled Rings
Square Bar
Billet
Contour Rings
Mandrel Rings
Shafts
Additional Data
Specifications
A681 (A-9),T30109Dismiss
Chemical Elements
| Carbon | 0.45 - 0.55 |
| Chromium | 4.75 - 5.5 |
| Iron | Balance |
| Manganese | 0.5 max |
| Molybdenum | 1.3 - 1.8 |
| Nickel | 1.25 - 1.75 |
| Phosphorus | 0.03 max |
| Silicon | 0.95 - 1.15 |
| Sulphur | 0.03 max |
| Vanadium | 0.8 - 1.4 |
Physical Properties
Density: 0.283lb/in³
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