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{Thalachrome SI} Diameter from 16 to 125 mm0 pages
{Thalachrome SI}
Standard induction hardened bar
From Ø 16 to 125 mm
Chemical analysis
C (%)
Si (%)
Mn (%)
S (%)
P (%)
V (%)
Cr (%)
Mo (%)
Ni (%)
Ck45
Steel grade
0.42-0.50
≤ 0.40
0.50-0.80
≤ 0.035
≤ 0.035
-
≤ 0.40
≤ 0.10
≤ 0.40
N (%)
-
20MnV6
0.16-0.22
0.10-0.50
1.30-1.70
0,020-0,035
≤ 0.035
0.10-0.20
-
-
-
-
38MnVS6
0.34-0.41
0.15-0.80
1.20-1.60
≤ 0.025
≤ 0.035
0.08-0.20
≤ 0.30
≤ 0.08
-
0.010-0.020
Cf53
0.42-0.57
0.15-0.35
0.40-0.70
≤ 0.035
≤ 0.025
-
-
-
-
-
C35E
0.32-0.39
≤ 0.40
0.50-0.80
≤ 0.035
≤ 0.035
-
≤ 0.40
≤ 0.10
≤ 0.40
-
For Ck45 and C35E : Cr + Mo + Ni ≤ 0.63%
Mechanical properties
Re (N/mm²)
Ck45
Rm (N/mm²)
A%
Ø = 16 mm
≥ 340
≥ 620
≥ 10
18 ≤ Ø ≤ 100 mm
≥ 305
580 – 850
≥ 16
100 < Ø ≤ 125 mm
≥ 275
560 - 800
≥ 16
Ø = 20 mm
38MnVS6
Cf53
C35E
≥ 450
550 - 780
≥ 17
20 < Ø ≤ 70 mm
≥ 450
550 - 780
≥ 18
70 < Ø ≤ 125 mm
20MnV6
≥ 390
530 - 780
≥ 18
18 ≤ Ø ≤ 115 mm
≥ 520
800 - 950
≥ 12
18 < Ø ≤ 40 mm
≥ 400
690 - 830
≥ 12
40 < Ø ≤ 125 mm
≥ 370
640 - 780
≥ 12
16 ≤ Ø ≤ 40 mm
≥ 315
560 - 750
≥ 18
40 < Ø ≤ 110 mm
≥ 275
560 - 760
≥ 19
Heat treatment
t Hardness depth :
tt From Ø 16 mm : between 0.5 and 1.0 mm
tt From Ø 18 to 40 mm : between 1.0 and 2.0 mm
tt From Ø 42 to 80 mm : between 1.25 and 2.5 mm
tt From Ø 82.55 to 125 mm : between 2.0 and 3.0 mm
t Surface hardness :
tt Steelgrade Ck45 : between 55 and 60 HRC.
tt Steelgrade 20MV6 : between 42 and 52 HRC.
tt Steelgrade 38MnVS6 : between 55 and 60 HRC.
tt Steelgrade Cf53 : between 62 and 64 HRC.
tt Steelgrade C35E : between 52 and 57 HRC.
URANIE INTERNATIONAL
BP 40325 - Le Meux
F-60618 La Croix Saint-Ouen Cedex
