EN 1.4913, also known as X19CrMoNbVN11-1 (W.Nr. 1.4913), is a chromium-molybdenum alloyed heat-resistant steel designed for high-temperature and high-pressure service. The alloying concept targets reliable creep strength and oxidation resistance, which makes this grade suitable for demanding power generation and process industry components.
1.4913 is typically specified where components must retain mechanical integrity under prolonged exposure to elevated temperature. Delivered condition and test results are confirmed on the EN 10204 / 3.1 certificate.
| Element | Typical range (wt. %) |
|---|---|
| C | 0.10 – 0.20 |
| Si | ≤ 0.50 |
| Mn | 0.30 – 0.80 |
| P | ≤ 0.025 |
| S | ≤ 0.015 |
| Cr | 1.0 – 1.5 |
| Mo | 0.9 – 1.1 |
| V | 0.15 – 0.30 |
| Fe | Balance |
| Property | Typical value (condition-dependent) |
|---|---|
| Tensile strength (Rm) | per standard / see EN 10204 3.1 certificate |
| Yield strength (Rp0.2) | per standard / see EN 10204 3.1 certificate |
| Elongation (A5) | per standard / see EN 10204 3.1 certificate |
| Hardness | per standard / see EN 10204 3.1 certificate |
| Creep resistance | designed for high-temperature pressure service |
Exact values are stated on the material certificate EN 10204 / 3.1.
1.4913 is commonly supplied as round bar for machining of high-temperature components. Depending on project requirements, material may be ordered hot rolled / forged and then peeled or turned to achieve the desired surface quality and dimensional accuracy.
Round bar (hot rolled / forged, peeled / turned to DIN EN 10060; lengths 4–6 m):
Stock range: Ø 6.00 mm – Ø 525.00 mm
Bigger sizes: on request
Centerless grinding available on request. Please specify tolerance, straightness and surface finish requirements when requesting a quote.
Chromium and molybdenum support oxidation resistance and high-temperature strength, while vanadium contributes to creep strength. This combination helps the steel maintain mechanical integrity under prolonged exposure to high temperature and pressure. This is why it has been used in power and process industry applications.
It is widely used for maintenance and replacement in existing installations. In newer designs, alternative creep-resistant grades (such as P91/P92 families) are often selected depending on design codes and temperature/pressure targets. Grade selection should always match the applicable standard and project specification.
Yes, but welding typically requires controlled procedures, including preheating and post-weld heat treatment, to maintain toughness and creep performance. Welding should follow the applicable standard, WPS and project requirements.
Yes, round bar can be supplied for machining, and centerless ground shafts are available on request. This is useful for mechanical components in high-temperature systems. Provide your required diameter tolerances and surface finish when requesting a quotation.
Certificates: EN 10204 / 3.1
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