High Quality Inconel 718/625/601/690/X 750 No7718 No6625 Nickel Plate/Sheet Alloyt Alloy
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Inconel is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200°F. One of the distinguishing features of Inconel 718's composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling. The addition of niobium acts with the molybdenum to stiffen the alloy's matrix and provide high strength without a strengthening heat treatment.Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium. This nickel steel alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. This superalloy is used in a variety of industries such as aerospace,chemical processing,marine engineering, pollution-control equipment, and nuclear reactors.
· Chemical composition
| Inconel Alloy Series | ||||||||
| Item | 600 | 601 | 617 | 625 | 690 | 718 | X750 | 825 |
| C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.1 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
| Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
| Fe | 6-10 | bal | ≤3 | ≤5 | 7-11 | bal | 5-9 | ≥22 |
| P | ≤0.015 | ≤0.02 | ≤0.015 | ≤0.015 | N/A | N/A | N/A | N/A |
| S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
| Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.3 | ≤0.5 | ≤0.5 |
| Cu | ≤0.5 | ≤1 | N/A | N/A | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
| Ni | ≥72 | 58-63 | ≥44.5 | Bal | ≥58 | 50-55 | ≥70 | 38-46 |
| Co | N/A | N/A | 10-15 | ≤1.0 | N/A | ≤1 | ≤1 | N/A |
| Al | N/A | 1-1.7 | 0.8-1.5 | ≤0.4 | N/A | 0.2-0.8 | 0.4-1 | ≤0.2 |
| Ti | N/A | N/A | ≤0.6 | ≤0.4 | N/A | N/A | 2.25- 2.75 |
0.6-1.2 |
| Cr | 14-17 | 21-25 | 20-24 | 20-23 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
| Nb+T a |
N/A | N/A | N/A | 3.15-4.1 5 | N/A | 4.75-5.5 | 0.7-1.2 | N/A |
| Mo | N/A | N/A | 8-10 | 8-10 | N/A | 2.8-3.3 | N/A | 2.5-3.5 |
| B | N/A | N/A | ≤0.006 | N/A | N/A | N/A | N/A | N/A |
· Physical properity
| Inconel Alloy Series | |||||
| Item | 600 | 625 | 718 | X750 | |
| Melting Point | 1370-1425ºC | 1290-1350ºC | 1260-1340ºC | 1395-1425ºC | |
| Density | 8.4g/cm³ | 8.4g/cm³ | 8.24g/cm³ | 8.25g/cm³ | |
| Alloy State | Annealing External diameter≥127 |
Annealing External diameter≤127 |
Solid solution | Solution treatment | Solution treatment |
| Tensile Strength RmN/mm2 |
550 | 550 | 690 | <965 | 1170 |
| Yield Strength Rp0.2N/mm |
205 | 205 | 276 | 550 | 790 |
| Extensibility A5% |
35 | 35 | 30 | 30 | 10 |
| Brinell Hardness HB |
- | - | ≤220 | ≤363 | 302-363 |
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