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Grade Comparison Tool
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-Molybdenum-Chromium Alloy
Alloy C-276
UNS: N10276 | Werkstoff: 2.4819
ASTM: N10276
13 differences found
9 in chemical composition, 4 in mechanical properties. Differences highlighted in gold.
Chemical Composition (% max unless range)
| Element | Alloy 718 | Alloy C-276 | Match |
|---|---|---|---|
| C | 0.08 max | 0.01 max | |
| Mn | 0.35 max | 1.00 max | |
| Si | 0.35 max | 0.08 max | |
| Cr | 17.0-21.0 | 14.5-16.5 | |
| Ni | 50.0-55.0 | Remainder | |
| Mo | 2.80-3.30 | 15.0-17.0 | |
| Ti | 0.65-1.15 | - | |
| W | - | 3.0-4.5 | |
| Fe | Remainder | 4.0-7.0 |
Mechanical Properties
| Property | Alloy 718 | Alloy C-276 | Match |
|---|---|---|---|
| Tensile Strength | 1241 MPa min (age hardened) | 690 MPa min | |
| Yield Strength | 1034 MPa min (age hardened) | 283 MPa min | |
| Elongation | 12% min | 40% min | |
| Hardness | 36 HRC max (solution annealed) | N/A |
International Standard Equivalents
| Standard | Alloy 718 | Alloy C-276 |
|---|---|---|
| UNS Number | N07718 | N10276 |
| Werkstoff Nr. | 2.4668 | 2.4819 |
| EN Name | NiCr19NbMo | NiMo16Cr15W |
| ASTM / ASME | N07718 | N10276 |
| Applicable Standards | ASTM B637 / ASME SB637, ASTM B670, AMS 5662 / AMS 5663, API 6A718, DIN 17751 | ASTM B622 / ASME SB622, ASTM B619 / ASME SB619, ASTM B626 / ASME SB626, DIN 17751 |
