Tabella dei materiali
|
CAT. ACCIAI
|
Analisi chimica di colata %
|
Caratteristiche mecc.
|
Trattamento
termico |
||||||||||
|
DESIGNAZIONE
|
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|
UNI
|
AISI
|
C
% |
Mn
% |
Si
% |
Cr
% |
Ni
% |
Mo
% |
ALTRI
% |
R
kg/mm2 |
Rs min
kg/mm2 |
A min
% |
DUREZZA
|
|
|
CEMENTAZIONE
|
|||||||||||||
|
C 10
|
1010
|
0.07/0.12
|
0.30/0.70
|
1.0 max
|
(50/90)
|
(30)
|
(12)
|
Cementazione tempra e distensione
|
|||||
|
16NiCr 11
|
3415
|
0.12/0.18
|
0.30/0.60
|
0.75 max
|
0.60/0.90
|
2.50/3.00
|
(115/145)
|
(90)
|
(9)
|
c.s.
|
|||
|
18NiCrMo5
|
0.15/0.21
|
0.60/0.90
|
1.0 max
|
0.70/1.00
|
1.20/1.50
|
0.15/0.25
|
(125/155)
|
(100)
|
(8)
|
c.s.
|
|||
|
DA BONIFICA
|
|||||||||||||
|
C 30
|
1030
|
0.27/0.34
|
0.50/0.80
|
0.75 max
|
(65/80)
|
(45)
|
(17)
|
Bonifica
|
|||||
|
C 40
|
1040
|
0.37/0.44
|
0.50/0.90
|
0.75 max
|
(71/86)
|
(50)
|
(15)
|
c.s.
|
|||||
|
C 50
|
1050
|
0.47/0.55
|
0.60/0.90
|
0.90 max
|
(77/92)
|
(55)
|
(13)
|
c.s.
|
|||||
|
38NiCrMo4
|
9840
|
0.34/0.42
|
0.50/0.80
|
0.75 max
|
0.70/1.00
|
0.70/1.00
|
0.15/0.25
|
(110/115)
|
(85)
|
(12)
|
c.s.
|
||
|
30NiCrMo12
|
0.27/0.35
|
0.50/0.80
|
0.75 max
|
0.60/1.00
|
2.60/3.20
|
0.30/0.60
|
(100/115)
|
(85)
|
(14)
|
c.s.
|
|||
|
40NiCrMo7
|
4340
|
0.38/0.46
|
0.60/1.00
|
0.50/1.50
|
0.65/1.00
|
1.65/2.00
|
0.30/0.45
|
140
|
126
|
5
|
HRC 44/49
|
c.s
|
|
|
30NiCrMo2
|
8630
|
0.25/0.35
|
0.60/0.95
|
1.00 max
|
0.35/0.65
|
0.35/0.75
|
0.15/0.30
|
CU=0.35 max
|
105 min
|
87 min
|
5
|
HRC 323/38
|
c.s.
|
|
PER MOLLE
|
|||||||||||||
|
55Si 8
|
9255
|
0.50/0.60
|
0.70/1.00
|
1.80/2.20
|
0.15/0.45
|
(140/170)
|
(125)
|
(5)
|
Tempra e rinvenimento
|
||||
|
52SiCrNi5
|
0.49/0.56
|
0.70/0.90
|
1.20/1.50
|
0.70/1.00
|
0.50/0.70
|
(160/185)
|
(135)
|
(5)
|
c.s.
|
||||
|
50 Cr V4
|
6150
|
0.47/0.55
|
0.70/0.90
|
1.00 max
|
0.80/1.20
|
V=0.10/0.20
|
(140/170)
|
(125)
|
(6)
|
c.s.
|
|||
|
VARI * (per cuscinetti, per nuclei magnetici, per valvole)
|
|||||||||||||
|
100 Cr6
|
52100
|
0.95/1.10
|
0.25/0.45
|
0.85 max
|
1.40/1.60
|
HRC 62/64
|
Tempra e rinvenimento
|
||||||
|
FeSi 2.5
|
0.03 max
|
0.12
|
2.43
|
0.06 max
|
0.05 max
|
||||||||
|
X45 CrNi
W 1909 |
BS EN 55
|
0.18/0.45
|
1.00 max
|
1.00/2.50
|
17.00 min
|
6.00/12.00
|
W=2.0/4.0
|
(80/95)
|
(38)
|
(30)
|
HB 270 max
|
Solubilizzazione
|
|
|
RAPIDI
|
|||||||||||||
|
X75 W18
KU |
T1
|
0.70/0.80
|
0.50 max
|
0.70 max
|
3.50/4.50
|
W=17.0/19.0
V=0.8/1.2 |
HRC 66 max
|
Tempra e rinvenimento
|
|||||
|
X82W Mo
0605 KU |
M2
|
0.75/0.90
|
0.50 max |
0.70 max
|
3.50/4.50
|
4.50/5.50
|
W=5.50/7.00
V=1.60/2.20 |
HRC 66 max
|
c.s.
|
||||
|
DA UTENSILI
|
|||||||||||||
|
88 Nn V8
KU |
02
|
0.80/0.95
|
1.80/2.20
|
0.75 max
|
V=0.10/0.20
|
HRC 65 max
|
Tempra e rinvenimento
|
||||||
| X210 G13 KU |
D3 1.90/2.30
|
0.50 max
|
1.00 max
|
12.00/14.00
|
HRC 63/65
|
c.s.
|
|||||||
|
58WCr9
KU S1 |
S1
|
0.50/0.65
|
0.50 max
|
0.50/1.50
|
0.80/1.20
|
W 2.0/2.5
|
HRC 50/58
|
c.s
|
|||||
|
C 98 KU
|
0.90/1.05
|
<=0.40
|
0.35/0.50
|
V=0.10
|
HRC 66/68
|
s.c.
|
|||||||
|
INOX AUSTENITICI
|
|||||||||||||
|
X10 CrNiS
1809 |
303
|
0.15 max
|
2.00 max
|
2.00 max
|
17.00/19.00
|
8.00/10.00
|
S=0.15 min
|
(55/75)
|
(24 min)
|
(35 min)
|
Solubilizzazione
|
||
|
X5CrNi
1810 |
304
|
0.08 max
|
2.00 max
|
2.00 max
|
18.00/20.00
|
8.00/10.500
|
(50/70)
|
(22)
|
(40 min)
|
c.s.
|
|||
|
X2CrNi
1811 |
304 L
|
0.05 max
|
2.00 max
|
2.00 max
|
16.00/20.00
|
8.00/12.00
|
(50/70)
|
(22)
|
(40)
|
HRB 86 max
|
c.s.
|
||
|
X22CrNi
2522 |
310
|
0.18 max
|
2.00 max
|
2.00 max
|
24.00/26.00
|
19.00/22.00
|
0.5 max
|
Cu 0.5 max
|
(60/75)
|
(25)
|
(30)
|
c.s.
|
|
|
X5CrNiMo
1712 |
316
|
0.15 max
|
2.00 max
|
2.00 max
|
16.00/18.50
|
10.50/13.5
|
2.00/2.50
|
Cu 0.5 max
|
(55/75)
|
(20)
|
(40)
|
c.s.
|
|
|
INOX MARTENSITICI
|
|||||||||||||
|
X12Cr13
|
403
|
0.15 max
|
1.00 max
|
0.50 max
|
11.50/13.00
|
(70/90)
|
(60)
|
(15)
|
Tempra e rinvenimento
|
||||
|
X12Cr13
|
410
|
0.05/0.15
|
1.00 max
|
1.00 max
|
11.50/13.50
|
0.50 max
|
0.50 max
|
Cu=0.5 max
|
66 min
|
52 min
|
8 min
|
HRB 90/10.5
|
Bonifica
|
|
X30Cr13
|
420
|
0.26/0.35
|
1.00 max
|
1.00 max
|
12.00/14.00
|
1.00 max
|
(80/100)
|
(60)
|
(12)
|
c.s.
|
|||
|
x16CrNi16
|
431
|
0.08/0.15
|
1.00 max
|
1.00 max
|
15.00/17.00
|
1.50/2.20
|
119 min
|
91 min
|
2
|
HRC 38/49
|
c.s.
|
||
|
X12CrS13
|
416
|
0.15 max
|
1.25 max
|
1.50 max
|
11.5/14.00
|
S=0.15/0.35
|
63 min
|
45 min
|
8 min
|
HRB 90/105
|
c.s.
|
||
|
INOX FERRITICI
|
|||||||||||||
|
X8Cr17
|
430
|
0.12 max
|
1.00 max
|
1.00 max
|
14.00/18.00
|
(52/60)
|
(25/49)
|
(15 min)
|
HRB 80
|
ricottura
|
|||
|
INOX INDURENTI PER PRECIPITAZIONE
|
|||||||||||||
|
17.4 PH
|
0.06 max
|
0.70 max
|
0.50/1.00
|
15.50/16.70
|
3.60/4.60
|
Cu=2.8/3.5
Cb+Ta=0.15/0.40 |
126 min
|
105 min
|
6 min
|
HRC 40 min
|
Solubilizzazione e invecchiamento
|
||
|
LEGHE DI COBALTO
|
|||||||||||||
|
Stellite 3
|
Leghe resistenti all’usura
|
2.45
|
1.00 max
|
1.00 max
|
31.00
|
3.0 max
|
W=12.5 Fe=3.0
Co=Rimanenza |
45
|
HRC 51/54
|
||||
|
Stellite 93
base ferro |
2.50/3.50
|
1.50 max
|
1.50 max
|
15.00/19.00
|
14.00/18.00
|
V=1.0/1.3
Co=4.0/7.0 |
HRC 55 min
|
||||||
|
Stellite 21
|
Leghe resistenti al calore
|
0.20/0.30
|
1.00 max
|
1.00 max
|
25.00/29.00
|
1.75/3.75
|
5.00/6.00
|
Fe=3.00 max
B=0.07 max |
36.5
|
10
|
HRC 34 max
|
||
|
Stellite 31
|
0.45/0.55
|
1.00 max
|
1.00 max
|
24.50/26.50
|
9.50/11.50
|
W=7.0/8.0
Fe=2.0 max |
38
|
10
|
HRC 34 max
|
||||
