X20CrMoV11-1 pipes – 1.4922 boiler tubes EN 10216-2
X20CrMoV11-1 is a high-temperature 12 % chromium steel – for decades the classic material for main-steam lines and superheaters in power plants. ROHRLINE supplies X20CrMoV11-1 pipes and tubes to EN 10216-2 with EN 10204 3.1 inspection certificates – worldwide.
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
Tell us the medium, temperature and pressure – we will check the grade with you.
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 | ≥ 40 J |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10216-2 |
| ASME/ASTM equivalent | no ASME counterpart (historically DIN 17175) |
| Material no. | 1.4922 |
| Short name / aka | 12% Cr steel · power-plant steel |
We supply X20CrMoV11-1 as pipes, flanges and fittings – seamless, on request with an EN 10204 3.1 / 3.2 mill certificate.
Supply programme & machining
| Item | Details |
|---|---|
| Dimensions (pipe) | Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard |
| As flange & fitting | DN 10 to DN 1200 · PN 6 to PN 400 · Class 150 to Class 2500 to ASME B16.5 (to NPS 24), above that ASME B16.47 to Class 900 |
| Lengths & cutting | Mill lengths, sawn fixed lengths and fitting pieces from 0.1 to 12 m – sawn and bevelled |
| Minimum quantity | From a single item – from one fitting piece to the complete piping system |
| Availability | Common grades and sizes available at short notice, special sizes procured per project |
| Lead time | Standard sizes usually 3–5 working days; the binding date is confirmed with the quote |
| Machining | Sawing and bevelling, roll grooving for grooved couplings, threading to EN 10226, drilling, facing, bending with special radii |
| Surface | Blasting Sa 2½, primer and top coat, powder coating in RAL shades, galvanising to EN ISO 1461, PE coating to DIN 30670 |
| Certificates | Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request |
| Testing | Non-destructive testing by ultrasound, eddy current and X-ray, pressure test report on request |
These figures describe our supply programme. Which size is actually available in this grade is clarified with your enquiry – you usually receive the quote the same day.
We clarify availability, price and inspection certificate with your enquiry.
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.
Which dimensions and certificates does ROHRLINE supply for X20CrMoV11-1?
ROHRLINE supplies X20CrMoV11-1 in the following range: Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard. Documentation: Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request. Delivery worldwide; the binding date is confirmed with the quotation.
Components in X20CrMoV11-1 pipes
We supply these ready-to-install parts in this grade – to your drawing, tested and documented.
Headers bring steam, water or gas together and distribute it again. We…
Bent tube strings for the hottest part of the boiler
Boiler tubes rarely arrive on site in mill lengths. We supply them…
Special flanges, collars and pipe fittings to drawing and works…
Typical industries
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.