Mat.No. 1.2601, DIN X165CrMoV12

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Designation by Standards Mat. No. DIN EN AISI 1.2601 X165CrMoV12 X160CrMoV121 - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 1.65 0.33 0.30 11.50 0.60 - 0.30 0.50 - Description Ledeburitic Cr-steel for high performance cutting tools, toughness better than D3, possibility of nitriding. This alloy possesses a very high compressive strength and is deep hardening. Applications Cutting tools, stamping, woodworking, drawing, deep ...

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Designation by Standards

Mat. No.	DIN	EN	AISI
1.2601	X165CrMoV12	X160CrMoV121	-

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
1.65	0.33	0.30	11.50	0.60	-	0.30	0.50	-

Description
Ledeburitic Cr-steel for high performance cutting tools, toughness better than D3, possibility of nitriding. This alloy possesses a very high compressive strength and is deep hardening.

Applications
Cutting tools, stamping, woodworking, drawing, deep drawing and pressing tools, cold working rolls, measuring tools.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 210
Density [g/cm³]: 7.70
Thermal conductivity [W/m.K]: 20.0
Electric resistivity [Ohm mm²/m]: 0.65
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10^-6 ^oC^-1

20-100^oC	20-200^oC	20-300^oC	20-400^oC	20-500^oC
10.5	11.0	11.0	11.5	12.0

Continuous Cooling Transformation (CCT) Diagram

Time-Temperature Transformation (TTT) Diagram

Soft Annealing
Heat to 800-840^oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 255.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650^oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 980-1010^oC followed by oil, air quenching or warm bath quenching. Hardness after quenching is 63-65 HRC.

Tempering
Tempering temperature: 150-400^oC.

Tempering Temperature (^oC) vs. Hardness (HRC)

100^oC	200^oC	300^oC	400^oC
64	62	60	58

Tempering Diagram

Forging
Hot forming temperature: 1050-850^oC.

Machinability
The machinability rating of OCR12EX is roughly 20-25% that of free machining carbon steel 1018. Due to its abrasion resistant nature, machining in the hardened condition should be limited to finish grinding.

Disclaimer
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.