D3 Tool Steel - Interlloy

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D3 Tool Steel (X210Cr12)

12% chrome steel, 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.

Colour Code

Red/Grey

Stocked Sizes

Condition of Delivery

Soft annealed to max. 248 HB

Related Specifications

Germany

DIN 1.2080

USA

AISI D3

Chemical Composition

Carbon

2.10

Chromium

12.0

Physical Properties

Thermal expansion coefficient
Thermal conductivity

Heat Treatment

Soft Annealing

Temperature	Cooling	Hardness
800 - 840^oC	furnace	max 248 HB

Stress Relief Annealing

Temperature	Cooling
600 - 650^oC	furnace

Hardening

Temperature	Cooling	Tempering
950 - 980^oC	oil, pressure (N₂) air or hot bath 500 - 550^oC	see tempering diagram

Thermal Cycle Diagram

Continuous Cooling Transformation Diagram (CCT)

Tempering Diagram

Interlloy believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.