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 |