Alloy 625
Alloy 625 is a high-temperature, extremely corrosion-resistant nickel-base alloy – for the most aggressive media, seawater and high temperatures.
Application & properties
Alloy 625 is a high-temperature, extremely corrosion-resistant nickel-base alloy – for the most aggressive media, seawater and high temperatures.
- Chemical and offshore plants with the most aggressive media
- Flue-gas cleaning and seawater technology
- High-temperature components
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| Ni | ≥ 58 |
| Cr | 20.0–23.0 |
| Mo | 8.0–10.0 |
| Nb+Ta | 3.15–4.15 |
| Fe | ≤ 5.0 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 | ≥ 415 MPa |
| Tensile strength Rm | ≥ 830 MPa |
| Elongation A | ≥ 30 % |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | ASTM B444 / B446, VdTÜV |
| ASME/ASTM equivalent | ~ UNS N06625 |
| Material no. | 2.4856 |
| Short name / aka | NiCr22Mo9Nb · Inconel 625 · UNS N06625 |
We supply Alloy 625 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Frequently asked questions about Alloy 625
What is Alloy 625 used for?
For the most demanding corrosive and high-temperature applications where stainless steels fail.
What is Inconel 625?
Inconel 625 is a trade name for the nickel-base alloy Alloy 625 (2.4856).
Request Alloy 625?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.