Difference Between Nickel and Inconel
Nickel Vs Inconel
Nickel
Nickel 200 & Nickel 201 are commercially pure Nickel alloy with 99% minimum Nickel content. Alloy 200 is designated as UNS N02200 and Werkstoff Number 2.4066. It is used for the manufacture of processing equipment. Nickel Alloy 200 is particularly suitable to maintain product purity in handling foods, synthetic fibres and alkalies. Nickel 200 is normally limited to service at temperatures below 600° F. At higher temperatures Alloy 200 can suffer from graphitization which can result in severely compromised properties. Alloy 200 can be easily welded by conventional welding, brazing, and soldering processes with the exception of the oxyacetylene process.
Nickel Alloy Composition
Nickel alloy material properties
Compositions of some common nickel alloys
UNS No |
Al |
Cr |
Co |
Fe |
Mo |
Ni |
Nb+Ta |
Ti |
W |
---|---|---|---|---|---|---|---|---|---|
N10276 | 15.5 | 5.5 | 16 | 57 | 3.8 | ||||
N06600 | 15.5 | 8 | 76 | ||||||
N06625 | 21.5 | 9 | 61 | 3.6 | |||||
N08800 | 21 | 46 | 32.5 | ||||||
N07718 | 0.5 | 19 | 18.5 | 3 | 52.5 | 5.1 | |||
N07090 | 1.5 | 19.5 | 16.5 | 60 | 2.5 |
Typical properties of some common nickel alloys
UNS No |
Condition |
UTS (MPa) |
0.2 Proof Stress (MPa) |
Elong. On 5cm (%) |
Hardness (HB) |
1000hr Ruptire Str. 750°C (MPa) |
---|---|---|---|---|---|---|
N10276 |
Annealed |
790 |
415 |
50 |
184 |
N/a |
N06600 |
Annealed |
550-690 |
210-430 |
55-35 |
120-170 |
38 |
N06625 |
Annealed |
930 |
520 |
45 |
180 |
160 |
N08800 |
Annealed |
520-690 |
210-410 |
60-30 |
120-184 |
70 (700°C) |
N07718 |
Age Hardened |
1350 |
1180 |
17 |
382 |
170 |
Trade Names and Owners of Nickel Alloys
- HASTELLOY is a registered trade name of Haynes Intl.
- INCOLOY, INCONEL, MONEL and NIMONIC are registered trade names of the INCO family of companies.
- INVAR is a registered trademark of Imphy S.A.
- MU-METAL is a registered trademark of Telcon Metals Ltd
- NICORROS and NICROFER are registered tradenames of Krupp UM GmbH
Inconel
Inconel® is a registered trademark (of Special Metals Corporation) referring to a family of austenitic nickel-chromium super alloys. 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 Material Specification
- Inconel 600
Solid solution strengthened. - Inconel 601
- Inconel 625
Acid resistant, good weldability. The LCF version is typically used in bellows. Ideal for hardware and components in the power, aerospace and chemical processing industries. Offered in sheet, plate, bar and forgings. - Inconel 718
Gamma double prime strengthened with good weldability. The preferred material for cryogenic storage tanks, turbines, downhole shafts and wellhead parts offered in sheet, plate and bar. - Inconel X750
Commonly used for gas turbine components, including blades, seals and rotors. - Inconel 907
- Inconel 909
- Inconel 706
- Inconel 617
- 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 188
Readily fabricated for commercial gas turbine and aerospace applications. Offered in sheet, plate and bar. - Inconel 690
Low cobalt content for nuclear applications, and low resistivity. - Inconel 713C
Precipitation hardenable nickel-chromium base cast alloy. - Inconel 230
Inconel 230 Plate & Sheet mainly used by the power, aerospace, chemical processing and industrial heating industries, Aerospace Materials.
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 % |
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