Difference Between Inconel and Titanium
Inconel
Inconel® is a material that is specifically optimized for some of the toughest use conditions to be found in manufacturing while Titanium is a chemical element with symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density, and high strength.
Inconel Composition
Inconel |
Element (% by mass) |
Ni |
Cr |
Fe |
Mo |
Nb |
Co |
Mn |
Cu |
Al |
Ti |
Si |
C |
S |
P |
B |
600 |
72.0 |
14.0–17.0 |
6.0–10.0 |
|
|
|
1.0 |
0.5 |
|
|
0.5 |
0.15 |
0.015 |
|
|
617 |
44.2–56.0 |
20.0–24.0 |
3.0 |
8.0–10.0 |
|
10.0–15.0 |
0.5 |
0.5 |
0.8–1.5 |
0.6 |
0.5 |
0.15 |
0.015 |
0.015 |
0.006 |
625 |
58.0 |
20.0–23.0 |
5.0 |
8.0–10.0 |
3.15–4.15 |
1.0 |
0.5 |
|
0.4 |
0.4 |
0.5 |
0.1 |
0.015 |
0.015 |
|
690 |
59.5 |
30 |
9.2 |
|
|
|
0.35 |
0.01 |
0.02 |
|
0.35 |
0.019 |
0.003 |
|
|
718 |
50.0–55.0 |
17.0–21.0 |
balance |
2.8–3.3 |
4.75–5.5 |
1.0 |
0.35 |
0.2–0.8 |
0.65–1.15 |
0.3 |
0.35 |
0.08 |
0.015 |
0.015 |
0.006 |
X-750 |
70.0 |
14.0–17.0 |
5.0–9.0 |
|
0.7–1.2 |
1.0 |
1.0 |
0.5 |
0.4–1.0 |
2.25–2.75 |
0.5 |
0.08 |
0.01 |
|
|
Inconel alloys
Alloys of inconel include:
- Inconel 600: Solid solution strengthened
- Inconel 601
- Inconel 625: Acid resistant, good weldability. The LCF version is typically used in bellows.
- Inconel 690: Low cobalt content for nuclear applications, and low resistivity
- Inconel 713C: Precipitation hardenable nickel-chromium base cast alloy
- Inconel 718: Gamma double prime strengthened with good weldability
- Inconel 751: Increased aluminium content for improved rupture strength in the 1600 °F range
- Inconel 792: Increased aluminium content for improved high temperature corrosion properties, used especially in gas turbines
- Inconel 939: Gamma prime strengthened to increase weldability
Inconel Equivalent Grades
STANDARD |
WERKSTOFF NR. |
UNS |
GOST |
AFNOR |
JIS |
BS |
EN |
OR |
Inconel 600 |
2.4816 |
N06600 |
МНЖМц 28-2,5-1,5 |
NC15FE11M |
NCF 600 |
NA 13 |
NiCr15Fe |
ЭИ868 |
Inconel 601 |
2.4851 |
N06601 |
XH60BT |
NC23FeA |
NCF 601 |
NA 49 |
NiCr23Fe |
ЭИ868 |
Inconel 617 |
2.4663 |
N06617 |
|
|
|
|
|
|
Inconel 625 |
2.4856 |
N06625 |
ХН75МБТЮ |
NC22DNB4M |
NCF 625 |
NA 21 |
NiCr22Mo9Nb |
ЭИ602 |
Inconel 690 |
2.4642 |
N06690 |
|
|
|
|
|
|
Inconel 718 |
2.4668 |
N07718 |
|
|
|
|
|
|
Inconel 725 |
- |
N07725 |
|
|
|
|
|
|
Inconel X-750 |
2.4669 |
N07750 |
|
|
|
|
|
|
Inconel Melting Point, Density and Tensile Strength
|
Density |
Melting Point |
Tensile Strength |
Yield Strength (0.2%Offset) |
Elongation |
600 |
8.47 g/cm3 |
1413 °C (2580 °F) |
Psi – 95,000 , MPa – 655 |
Psi – 45,000 , MPa – 310 |
40 % |
601 |
8.1 g/cm3 |
1411 °C (2571 °F) |
Psi – 80,000 , MPa – 550 |
Psi – 30,000 , MPa – 205 |
30 % |
617 |
8.3g/cm³ |
1363°C |
≥ 485 MPa |
≥ 275 MPa |
25 % |
625 |
8.4 g/cm3 |
1350 °C (2460 °F) |
Psi – 135,000 , MPa – 930 |
Psi – 75,000 , MPa – 517 |
42.5 % |
690 |
8.3g/cm³ |
1363°C |
≥ 485 MPa |
≥ 275 MPa |
25 % |
718 |
8.2 g/cm3 |
1350 °C (2460 °F) |
Psi – 135,000 , MPa – 930 |
Psi – 70,000 , MPa – 482 |
45 % |
725 |
8.31 g/cm3 |
1271°C-1343 °C |
1137 MPa |
827 MPa |
20 % |
X-750 |
8.28 g/cm3 |
1430°C |
1267 MPa |
868 MPa |
25 % |
Titanium
Titanium Equivalent Grades
STANDARD |
WERKSTOFF NR. |
UNS |
Titanium Gr 1 |
3.7025 |
R50250 |
Titanium Gr 2 |
3.7035 |
R50400 |
Titanium Gr 5 |
3.7165 |
R56400 |
Titanium Gr 7 |
3.7235 |
R52400 |
Titanium Gr 9 |
3.7195 |
R56320 |
Titanium Gr 12 |
3.7105 |
R53400 |
Titanium Chemical Composition
Grade |
C |
N |
O |
H |
Ti |
Fe |
Titanium Gr 2 |
0.10 max |
0.03 max |
0.25 max |
0.015 max |
bal |
0.30 max |
Grade |
C |
N |
O |
H |
Ti |
Fe |
V |
Al |
Titanium Gr 5 |
0.10 max |
0.05 max |
0.20 max |
0.015 max |
bal |
0.30 max |
3.5-4.5 |
5.5-6.75 max |
Grade |
C |
N |
O |
H |
Ti |
Fe |
Titanium Gr 1 |
.08 max |
.03 max |
.18 max |
.015 max |
bal |
.20 max |
Titanium Gr 4 |
.08 max |
.05 max |
.40 max |
.015 max |
bal |
.50 max |
Titanium Gr 7 |
.08 max |
.03 max |
.25 max |
.015 max |
bal |
.30 max |
Titanium Gr 9 |
.08 max |
.03 max |
.15 max |
.015 max |
- |
.25 max |
Titanium Gr 12 |
.08 max |
.03 max |
.25 max |
0.15 max |
- |
.30 max |
Titanium Hardness and Tensile Strength
Grade |
Min.Tensile(KSI) |
Min.Yield(KSI) |
Hardness |
Tensile Modulus |
Poisson's Ratio |
Titanium Gr 2 |
50 |
40 |
14.9 |
103 GPa |
0.34-0.10 |
Titanium Gr 5 |
130 |
120 |
16.4 |
114 GPa |
0.30-0.33 |