1.2379 X153CrMoV12
Chemical Composition : C
Si
Mn
Min.
%
1.45
0.10
0.20
Max.
%
1.60
0.60
0.60
P
S
0.030
0.030
Cr
Mo
V
11.00
0.70
0.70
13.00
1.00
1.00
Material Code : DIN
ASTM
JIS
GOST
1.2379 X153CrMoV12
D2
SKD10
Ch12MF
Properties : High carbon and high chromium, ledeburitic 12 % Cr alloyed cold work tool steel, excellent abrasion resistance due to a large volume of carbides in the microstructure, high cutting ability with edge holding properties, high compression strength, excellent deep hardenability and toughness properties, dimensional stability during heat treatment, high resistance to softening at elevated temperatures. Suitable for nitriding and electrical discharge machining.
Applications : High performance blanking, punching, stamping and cutting tools and dies up to 6 mm sheet thickness, thread rollings, chasers and dies, precision blanking dies, longitudinal and circular shear blades for plastic, paper and metal, cold forming and bending tools, tools for drawing, deep drawing and cold extrusion, hobbing tools, woodworking tools, milling cutters, reamers, broaches, pressing tools for the ceramics and pharmaceutical industries, cold piercers, measuring instruments and gauges, rolling cutters and shaping wheels, cold pilger mandrels, beading, flanging and straightening rolls, plastic injection moulds, especially cutting tools of austenitic material when nitrided.
Physical Properties : Density
: at 20 °C 7,70 kg/dm3
Thermal expansion between : 20 °C and... °C, 10-6 m/(mK)
Thermal conductivity : at 20 °C 20,0 W/(m.K) 100 °C
200 °C
300 °C
400 °C
500 °C
10,5
11,0
11,0
11,5
12,0
Heat Treatment : Annealing
: 800 - 850 °C
Hardness after annealing
: Max. 250 HB
Stress relieving
: 650 - 700 °C
Hot forming
: 1050 - 850 °C
Hardening
: 1020 - 1080 °C
Quenching media
: Oil, Salt bath ( 220 - 250 °C or 500 - 550 °C ) Air or compressed air
Hardness after quenching : 63 - 65 HRC Hardness after tempering : 100 °C
200 °C
300 °C
400 °C
64 HRC
61 HRC
59 HRC
58 HRC
ÖZ ÇELÝK TÝCARET LTD.ÞTÝ.
Heat Treatment Sequence 1200 1100
Hardening
1000 900
Air
2nd preheat stage
Temperature, °C
800 700 1st preheat stage 600
Tempering before nitriding
500
Salt bath Cooling in furnace
400
Tempering to working hardness
Salt bath
300 200 100
Oil
Stress relieving
0 Time
Cleaning / Hardness test
Time - Temperature - Transformation Diagram
Tempering Diagram
1200
70 Austenitizing 1020 °C 66
1000
62
Temperature, °C
900
K
Hardness, HRC
1100
Ac1e (2K/min)
800 Ac1b (2K/min)
700
100
P
600 0,38
500
0,9
50
6
1
A+K
5K/min
10,2
2K/min
18,0
58 54 50 46 42 X153CrMoV12 38
400
Heat treatment :
B
300
34
Ms KgM
200
Ms
0
M 870
100
870
1020 °C / Air
30
628
743
348
100 200 300 400 500 600 700 800
211
Tempering temperature, °C
0 10-1
100
101
102
103
104
105
106
Seconds Time
Minutes
1
10
100
1000
10000
Stock Sizes Round Bars mm 10.5
12.5
13.5
14.5
15.5
16.5
18.5
20.5
22.5
25.5
28.5
30.5
32.8
35.8
40.8
45.8
50.8
55.8
60.8
66
71
76
81
86
91
96
101.5
111.5
116.5
121.5
131.5
141.5
151.5
162
172
182
192
202
212
222
232
242
252.5
262.5
272.5
282.5
302.5
312.5
323
333
343
353
363
383
403
423
453
473
505
130
150
Square Bars mm 20
25
30
40
50
Flat Bars - Sheets mm
60
70
80
90
100
120
180
200
250
Width x Thickness
25 x 10 15 20
160 x 20 25 30 40 50
30 x 10 15 20 25
180 x 20 25 30 40 50
40 x
6 10 15 20 25 30
200 x 20 25 30 40 50 55 60 70 80 100 120 150
50 x
6 10 15 20 25 30 40
220 x 30 40 50
60 x
6 10 15 20 25 30 40
70 x 10 15 20 25 30 40 80 x
6 10 15 20 25 30 40 50 60
90 x 20 25 30 100 x
6 10 15 20 25 30 35 40 50 60 70 80
120 x 10 15 20 25 30 40 50 60 70 80 100
250 x 20 25 30 40 50 60 70 80 100 120 150 200 300 x 20 25 30 40 50 60 70 80 100 120 150 200 350 x 10 15 20 25 30 35 40 50 60 70 80 100 120 410 x 20 25 30 35 40 50 55 60 70 80 100 120 150 200 450 x 30 40 50 60 70 80 510 x 20 25 30 35 40 50 60 70 80 100 120 150 200
140 x 30 40 50 70
610 x 1.5
150 x 15 20 25 30 40 50 60 70 80 100 120
610 x 10 15 20 25 30 35 40 50 60 70 80
2 2.5
3 3.5
4 4.5
5 5.5
6
8
