A nickel-chromium-molybdenum-niobium grade, Alloy 625, commonly referred to as Inconel® 625, offers outstanding corrosion resistance and superb weldability.
The addition of niobium provides high strength without the need for heat treatment. NeoNickel also offers Alloy 625 sheet with a combination of low-cycle fatigue and deep drawing quality.
| % | Cr | Ni | Mo | Co | Nb+Ta | Al | Ti | C | Fe | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 20 | - | 8 | - | 3.15 | - | - | - | - | - | - | - | - |
| Max | 23 | Balance | 10 | 1 | 4.15 | 0.4 | 0.4 | 0.1 | 5.0 | 0.5 | 0.5 | 0.015 | 0.015 |
Alloy 625, commonly referred to as Inconel® 625, demonstrates an excellent combination of corrosion resistance and high strength. Due to the high nickel content, Inconel® Alloy 625 is immune to chloride-induced stress corrosion cracking. It also has good resistance to pitting and crevice corrosion.
NeoNickel offers Alloy 625 sheet certified to both UNS N06625, 625 LCF® and ATI 625 HP® (UNS N06626). The 625 sheet meets the low-cycle fatigue properties specified in UNS N06626 and is also produced and certified as DDQ (deep drawing quality).
Resulting from the alloy’s excellent thermal stability, Alloy 625/Inconel® 625 is the alloy of choice for weld overlay applications in the oil and gas/petrochemical and refineries markets.
To learn more about Alloy 625 contact us, or fill in our online quote form and we’ll get right back to you!
ATI 625 HP® is a registered trademark of ATI Allegheny.
625 LCF® is a registered trademark of Special Metals Corporation.
| Mechanical & Physical Properties | 21°C | 204 °C | 316 °C | 427 °C | 538 °C | 649 °C | 760 °C | 871 °C |
|---|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength /Mpa | 992.9 | 923.9 | 910.1 | 910.1 | 896.3 | 820.5 | 537.8 | 275.8 |
| 0.2% Yield Strength /MPa | 579.2 | 455.1 | 434.4 | 420.6 | 420.6 | 413.7 | 406.8 | 268.9 |
| Elongation % | 44 | 45 | 42.5 | 45 | 48 | 34 | 59 | 117 |
| Coefficient of Thermal Expansion µm/m⁰C | - | 13.1 | 13.3 | 13.7 | 14 | 14.8 | 15.3 | 15.8 |
| Thermal Conductivity /kcal/(hr.m.°C) | 8.5 | 10.7 | 12.2 | 13.5 | 15 | 16.4 | 17.9 | 19.6 |
| Modulus of Elasticity/ MPa | 2.07 | 1.93 | 1.93 | 1.86 | 1.79 | 1.65 | 1.59 | - |
| Temperature, °C | 649°C | 704°C | 760°C |
|---|---|---|---|
| 100 Hours, ksi | 59 | 34 | 18 |
| 1,000 Hours, ksi | 43 | 23 | 12 |
Proud members of the British Valve & Actuator Association