The name Inconel steel applies to all nickel chromium based austenitic steels. These are superalloys of chromium and nickel. They perform extremely well under high pressure and high temperature environments. They are very much resistant to oxidation corrosion and therefore could be used in oxidation prone applications. Like the weathering steel, Inconel material also forms an oxide layer upon first contact with oxidizing agents and then oxide layer prevents from further corrosion due to oxidation. Thermally induced crystal vacancies are less or absent in Inconel material which make them applied in high temperature environments where ordinary steel or aluminum would not stand.
The Inconel density changes with the different grades of the material. There are different grades designated by numbers such as 600, 617, 625, 690, 718 and X750. The Inconel 600 for example has 8.47 grams per centimeter cube of density. These are developed through different methods. Depending on the grade, they could be formed either by solid solution strengthening or precipitation strengthening methods. The gamma double prime forming cubic crystals avoid the creep in elevated temperatures. For this purpose, niobium is added in some precipitation strengthening grades. Due to the rapid hardening of the material, cold working is not possible. Also, machining is difficult on these materials.
There are special tools and procedures involved in the machining of this material to avoid the plastic deformation of the material or the tools. The Inconel price is competitive and we can provide you with a comprehensive price list upon request. There are different grades of the Inconel alloy that are used in different industries and applications. The Inconel x-750 is used mostly in gas turbine components such as blades, seals and rotors. There are different Inconel applications but mostly in the aviation, space and gas industries. The different Inconel grades can be used for different purposes.
Products Available Shapes |
International Standard |
Bar |
ASTM B 446/ASME SB 446, ISO 9723, VdTÜV 499, BS 3076NA21, EN 10095, DIN 17752 , ASME Code Case 1935, SAE/AMS 5666, |
Wire |
DIN 17753, SAE/AMS 5837, ISO 9724 |
Sheet / Plate |
ASTM B 443/ASTM SB 443,ISO 6208, VdTÜV 499, BS 3072NA21 (Sheet, Plates), EN 10095, DIN 17750, ASME Code Case 1935, SAE/AMS 5599 & 5869 & MAM 5599, |
Pipe / Tube |
ASTM B444/ B829, ASME SB 444/ SB 829 (Seamless), ASME SB 704/SB 751 and ASTM B704/B 751 (Welded), ASME SB 705/ SB 775 and ASTM B705/B 775 (Welded), VdTÜV 499, BS 3074NA21 (Seamless), ISO 6207, SAE/AMS 5581 (Seamless & Welded), DIN 17751, ASME Code Case 1935. |
Pipe Fittings (Buttweld) |
ASTM B 366/ ASME SB 366 |
Forging/ Forged Items |
ASTM B 564/ ASME SB 564, DIN 17754, ISO 9725 |
Welding Wire |
A5.14 ERNiFeCr-2 |
Heat Resisting Steels & Alloys |
DIN 17744, ISO 4955A |
Inconel 600 Heat Capacity units |
Metric: 0.444 J/g-°C |
Inconel 625 Heat Capacity units |
Metric: 0.41 J/g-°C |
| Inconel | Element, proportion by mass (%) | Nb & Ta | C | Co | Cu | Mn | Al | Ti | Si | S | P | B | |||
| Ni | Cr | Fe | Mo | ||||||||||||
| 600 | ≥72.0 | 14.0-17.0 | 6.0-10.0 | ≤0.15 | N/A | ≤0.5 | ≤1.0 | ≤0.5 | ≤0.015 | ||||||
| 617 | 44.2-61.0 | 20.0-24.0 | ≤3.0 | 8.0-10.0 | 0.05-0.15 | 10.0-15.0 | ≤0.5 | ≤0.5 | 0.8-1.5 | ≤0.6 | ≤0.5 | ≤0.015 | ≤0.015 | ≤0.006 | |
| 625 | ≥58.0 | 20.0-23.0 | ≤5.0 | 8.0-10.0 | 3.15-4.15 | ≤0.1 | ≤1.0 | ≤0.5 | ≤0.4 | ≤0.4 | ≤0.5 | ≤0.015 | ≤0.015 | ||
| 690 | ≥58 | 27-31 | 7-11 | ≤0.05 | ≤0.50 | ≤0.50 | ≤0.50 | ≤0.015 | |||||||
| Nuclear grade 690 | ≥58 | 28-31 | 7-11 | ≤0.04 | ≤0.10 | ≤0.50 | ≤0.50 | ≤0.50 | ≤0.015 | ||||||
| 718 | 50.0-55.0 | 17.0-21.0 | Remainder 2.8-3.3 | 4.75-5.5 | ≤0.08 | ≤1.0 | ≤0.3 | ≤0.35 | 0.2-0.8 | 0.65-1.15 | ≤0.35 | ≤0.015 | ≤0.015 | ≤0.006 | |
| X-750 | ≥70.0 | 14.0-17.0 | 5.0-9.0 | 0.7-1.2 | ≤0.08 | ≤1.0 | ≤0.5 | ≤1.0 | 0.4-1.0 | 2.25-2.75 | ≤0.5 | ≤0.01 | |||
| Products | Hardness, | Form and Condition | Yield Strength | Tensile Strength | Elongation % | ||
| Rockwell | Ksi | MPa | Ksi | MPa | |||
| Bars | 65-85B | Cold drawn Annealed | 25-50 | 170-345 | 80-100 | 550-690 | 55-35 |
| Plates | 65-85B | Hot rolled Annealed | 30-50 | 205-345 | 80-100 | 550-725 | 55-35 |
| Sheets | 88B max | Cold Rolled (CR) Annealed | 30-45 | 205-310 | 80-100 | 550-690 | 55-35 |
| Pipe/ Tubes | 88B max | Cold Drawn Annealed | 25-50 | 170-345 | 80-100 | 550-690 | 55-35 |
| Wires | -- | Cold Drawn Annealed | 35-75 | 240-520 | 80-120 | 550-830 | 45-20 |
| Wires | -- | Cold Drawn No 1 temper | 70-105 | 480-725 | 105-135 | 725-930 | 35-15 |
| Wires | -- | Spring Temper | 150-210 | 1035-1450 | 170-220 | 1170-1520 | 5-2 |
| Bars/Rods | ≤287 HB | Annealed | 60 | 414 | 120 | 827 | 30 |
| Sheets | 145-240 | Annealed | 60 | 414 | 120 | 827 | 30 |
| Tube | -- | Annealed | 60 | 414 | 120 | 827 | 35 |
Inconel has a higher melting point of 2,540°F-2,600°F (1,390°C-1,425°C), check below the grade wise melting range.
Inconel 718 Melting Point Range |
Solution Treated: 2500-2600 Deg F Solution Treated and Aged: 1370-1430 Deg C |
Inconel 601 Melting Point Range |
1411 Deg C (2571 Deg F) |
Inconel 600 Melting Point Range |
Metric: 1354 - 1413 Deg C English: 2470 - 2580 Deg F |
Inconel 625 Melting Point Range |
2350 - 2460 Deg F (1280 - 1350 Deg C) |