X20CrMoV11-1
X20CrMoV11-1 is a high-temperature 12 % chromium steel – for decades the classic material for main-steam lines and superheaters in power plants.
Application & properties
X20CrMoV11-1 is a high-temperature 12 % chromium steel – for decades the classic material for main-steam lines and superheaters in power plants.
- Main-steam and live-steam lines
- Superheaters and headers
- Power-plant modernisation
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | 0.17–0.23 |
| Si | ≤ 0.50 |
| Mn | ≤ 1.00 |
| Cr | 10.0–12.5 |
| Mo | 0.80–1.20 |
| V | 0.25–0.35 |
| Ni | 0.30–0.80 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 | ≥ 490 MPa |
| Tensile strength Rm | 690–840 MPa |
| Elongation A | ≥ 17 % |
| Impact energy KV | ≥ 27 J |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10216-2 |
| ASME/ASTM equivalent | ~ DIN 17175 (X20) |
| Material no. | 1.4922 |
| Short name / aka | 12%-Cr-Stahl · Kraftwerksstahl |
We supply X20CrMoV11-1 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Frequently asked questions about X20CrMoV11-1
What is X20CrMoV11-1 used for?
For highly loaded steam lines and superheaters in conventional power plants.
X20 or P91?
P91 withstands higher temperatures and allows thinner walls; X20 is the proven classic in the installed base.
Request X20CrMoV11-1?
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.