ENGINEERING STEELS + ALLOYS
D3 Tool Steel (X210Cr12) |
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| D3 toolsteel is a 12% chrome steel, it has very high wear resistance against abrasive and adhesive wear due to the high volume of hard carbides in the steel matrix, medium toughness, dimensionally stable, high compressive strength, not secondary hardenable.
Applications: Highly stressed cutting and punching tools for thin sheets, profile rolls, drawing and deep drawing tools, stone processing tools, knives for paper and plastics, shear knives for thin sheets.
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| Colour Code | Stocked Sizes | |
Red/Grey |
Rounds Flats
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60 mm - 262.5 mm Dia80 mm x 50 mm - 150 mm x 30 mm |
| Condition of Delivery |
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| Soft annealed to max. 248 HB | ||
| Related Specifications |
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| Germany | DIN 1.2080 |
| USA | AISI D3 |
| Chemical Composition | |||||||||||
| % | |||||||||||
| Carbon | 2.10 | ||||||||||
| Chromium | 12.0 | ||||||||||
| Physical Properties | |||||||||||
| Thermal expansion coefficient |  |
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| Thermal conductivity | |||||||||||
| Heat Treatment | |||||||||||
| Soft Annealing | |||||||||||
| Temperature | 800 - 840oC | ||||||||||
| Cooling | furnace | ||||||||||
| Hardness | max 248 HB | ||||||||||
| Stress Relief Annealing | |||||||||||
| Temperature | 600 - 650oC | ||||||||||
| Cooling | furnace | ||||||||||
| Hardening | |||||||||||
| Temperature | 950 - 980oC | ||||||||||
| Cooling | oil, pressure (N2) air or hot bath 500 - 550oC |
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| Hardness | see tempering diagram | ||||||||||
| Thermal Cycle Diagram | |||||||||||
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| Continuous Cooling Transformation Diagram (CCT) | |||||||||||
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| Tempering Diagram | |||||||||||
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