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