Mat.No. 1.2767, DIN X45NiCrMo4
Designation by Standards Mat. No. DIN EN AISI 1.2767 X45NiCrMo4 40NiCrMoV16 - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.45 0.25 0.35 1.35 0.25 4.05 - - - Description Nickel cold work tool steel. Goof hardenability and thougness. Ability for polishing, photoetching and erosion treatment. Applications Forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, p...
Designation by Standards
Chemical Composition (in weight %)
Nickel cold work tool steel. Goof hardenability and thougness. Ability for polishing, photoetching and erosion treatment.
Forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, piercers, etc.
Physical properties (avarage values) at ambient temperature
Density [g/cm3]: 7.84
Thermal conductivity [W/m.K]: 28.0
Coefficient of Linear Thermal Expansion 10-6 oC-1
Continuous Cooling Transformation (CCT) Diagram
Time-Temperature Transformation (TTT) Diagram
Heat to 610-850oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 262.
Stress relieving to remove machining stresses should be carried out by heating to 650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Harden from a temperature of 840-870oC followed by oil. air or warm bath (180-220oC) quenching. Hardness after quenching is 56 HRC.
Tempering temperature: 150-400oC.
Tempering Temperature (oC) vs. Hardness (HRC)
Click the image to enlarge the diagram.
Hot forming temperature: No data.
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.