Physical and mechanical properties

Material   NICRO 12.1 NICRO 22 NICRO 22V NICRO 31 NICRO 52 NICRO 52.6 NICRO 62.5 CARBO 13 CARBO 24 CARBO 32 TITANIUM
Type  
CrNi 17 7
CrNiMo 17 12 2
CrNiMo 17 12 2
CrNiTi 13 4
CrNiCuTi 15 7
CrNiCuTi 15 7
CrNiCu 15 5
Ck 67
-
-
Grade 2
Similar material DIN
1.4310
1.4401
1.4401
1.4313
-
-
-
1.1231
-
-
3.7035
AISI
301
316
316
-
-
-
-
-
-
-
-
Tensile strength RT N/mm²
1150
1100
1130
1080
1150
1550
1450
1200
1420
1280
390
0,2% yield offset strength RT N/mm²
950
970
1000
1050
1100
1500
1410
970
1320
1220
275
Hardness Rockwell HRC
37.0
33.0
33.0
33.5
37.0
47.5
46.0
36.0
44.5
42.0
-
Vickers HV 10
360
330
330
330
360
480
460
350
440
410
160
Elongation 50 mm %
18
12
12
5
8
6
8
8
6
5
20
Welding factor  
0.70
0.65
0.70
0.95
0.95
0.80
0.75
0.80
0.75
0.80
0.95
Fatigue strength under
reversed bending stress *)		 RT N/mm²
480
440
440
480
500
700
650
450
550
550
250
Modulus in elasticity 20°C N/mm²
200,000
200,000
200,000
205,000
200,000
200,000
200,000
210,000
210,000
205,000
106,000
200°C N/mm²
180,000
180,000
180,000
-
-
-
-
-
-
-
-
Density kg/dm3
7.90
7.95
7.95
7.70
7.74
7.74
7.80
7.85
7.85
7.82
4.53
Mean thermal
expansion coefficient		 20-100°C 10-6m/m°C
16.0
16.5
16.5
10.8
10.9
10.9
10.8
11.1
12.0
11.8
8.5
20-200°C 10-6m/m°C
17.0
17.5
17.5
11.2
11.5
11.5
10.8
11.9
12.5
12.4
8.9
20-300°C 10-6m/m°C
-
-
-
11.7
11.7
11.7
11.3
12.5
12.9
12.6
-
20-400°C 10-6m/m°C
-
-
-
-
-
-
-
12.9
-
-
-
Specific heat J/g°C
0.50
0.50
0.50
0.46
0.50
0.50
0.42
0.46
0.45
0.46
0.52
Thermal conductivity 20°C W/m°C
15
15
15
21
16
16
16
46
40
38
20
Specific electric resistance 20°C 0hm mm/m²
0.73
0.75
0.75
0.60
0.80
0.80
0.77
0.13
0.20
0.20
0.78
Max. permissible
operating temperature		 °C
250
250
250
350
350
350
300
400
250
350
250
°F
480
480
480
660
660
660
572
750
480
660
480
Tensile strength at max.
permissible operating temp.		 N/mm²
940
870
900
970
900
1250
1160
850
1300
1100
225
0,2% yield offset strength at
max. permissible oper. temp.		 N/mm²
770
770
800
930
830
1180
1130
720
1100
1050
135