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Compare chemical composition, mechanical properties, and international standard equivalents side by side. Differences highlighted in gold.
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Nickel-Chromium Precipitation Hardening Alloy
Alloy 718
UNS: N07718 | Werkstoff: 2.4668
ASTM: N07718
Nickel-Chromium-Molybdenum Alloy
Alloy 625
UNS: N06625 | Werkstoff: 2.4856
ASTM: N06625
12 differences found
8 in chemical composition, 4 in mechanical properties. Differences highlighted in gold.
Chemical Composition (% max unless range)
| Element | Alloy 718 | Alloy 625 | Match |
|---|---|---|---|
| C | 0.08 max | 0.10 max | |
| Mn | 0.35 max | 0.50 max | |
| Si | 0.35 max | 0.50 max | |
| Cr | 17.0-21.0 | 20.0-23.0 | |
| Ni | 50.0-55.0 | 58.0 min | |
| Mo | 2.80-3.30 | 8.0-10.0 | |
| Ti | 0.65-1.15 | 0.40 max | |
| Fe | Remainder | 5.0 max |
Mechanical Properties
| Property | Alloy 718 | Alloy 625 | Match |
|---|---|---|---|
| Tensile Strength | 1241 MPa min (age hardened) | 827 MPa min | |
| Yield Strength | 1034 MPa min (age hardened) | 414 MPa min | |
| Elongation | 12% min | 30% min | |
| Hardness | 36 HRC max (solution annealed) | N/A |
International Standard Equivalents
| Standard | Alloy 718 | Alloy 625 |
|---|---|---|
| UNS Number | N07718 | N06625 |
| Werkstoff Nr. | 2.4668 | 2.4856 |
| EN Name | NiCr19NbMo | NiCr22Mo9Nb |
| ASTM / ASME | N07718 | N06625 |
| Applicable Standards | ASTM B637 / ASME SB637, ASTM B670, AMS 5662 / AMS 5663, API 6A718, DIN 17751 | ASTM B444 / ASME SB444, ASTM B163 / ASME SB163, ASTM B704 / ASME SB704, DIN 17751 |
