Tabella dei materiali

CAT. ACCIAI
Analisi chimica di colata %
Caratteristiche mecc.
Trattamento
termico
DESIGNAZIONE
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