--- title: "1.4913 — High-temperature steels" description: "1.4913 is the material number of the grade also listed as X19CrMoNbVN11-1. Category: High-temperature steels. Designations recorded for this grade: 10." canonical: https://steelequivalents.com/materials/material-no/1.4913 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.4913.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.4913.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.4913.md es: https://steelequivalents.com/es/materiales/número-de-material/1.4913.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.4913.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.4913.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.4913.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.4913.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.4913.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.4913.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.4913.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.4913.md zh: https://steelequivalents.com/zh/材料/材料编号/1.4913.md ja: https://steelequivalents.com/ja/材料/材料番号/1.4913.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.4913.md ko: https://steelequivalents.com/ko/재료/재료번호/1.4913.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.4913.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.4913.md content_hash: sha256:a9ce004e3a9490385762677a9625b095b059385c74e9c961914d047e235ca0a5 generated: 2026-09-24 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/material-no/1.4913 > Canonical URL: https://steelequivalents.com/materials/material-no/1.4913 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. Material number · Europe · 10 designations # 1.4913 1.4913 is the material number of the grade also listed as X19CrMoNbVN11-1. It is a material in the category High-temperature steels. We list 10 designations recorded for this grade, in the standards DIN / EN, AFNOR, ISO and GOST. - ***Material no.* **1.4913**** - [*Category* **High-temperature steels · 40 grades**](/categories/high-temperature-steels "Category: High-temperature steels · 40 grades") - *Designations* **10** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=57261a64-940c-4bbc-aecf-97c4977b5c02 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4913.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X19CrMoNbVN11-1 This grade’s own name](/materials/din-en/x19crmonbvn11-1 "DIN / EN X19CrMoNbVN11-1") ## About High-temperature steels High-temperature steels are steels designed to retain useful strength and structural stability during exposure to elevated temperatures. Their alloying systems provide resistance to oxidation, creep and loss of mechanical properties during prolonged heating, making them suitable for furnace components, heat exchangers, boilers and other hot-service equipment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 10 designations · 4 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 1 - [X19CrMoNbVN11-1 This grade’s own name](/materials/din-en/x19crmonbvn11-1 "DIN / EN X19CrMoNbVN11-1") AFNOR France · 3 - [56T5 Indicative](/materials/afnor/56t5 "AFNOR 56T5") - [Z20CDNbV11 Indicative](/materials/afnor/z20cdnbv11 "AFNOR Z20CDNbV11") - [Z21CDNbV11 Indicative](/materials/afnor/z21cdnbv11 "AFNOR Z21CDNbV11") ISO International · 2 - [MM12G Indicative](/materials/iso/mm12g "ISO MM12G") - [X18CrMnMoNbVN12 Indicative](/materials/din-en/x18crmnmonbvn12 "ISO X18CrMnMoNbVN12") GOST Russia / CIS · 4 - [18Ch11MNFB Indicative](/materials/gost/18ch11mnfb "GOST 18Ch11MNFB") - [18Х11МНФБ Indicative](/materials/gost/18kh11mnfb "GOST 18Х11МНФБ") - [2Х11МФБН Indicative](/materials/gost/2kh11mfbn "GOST 2Х11МФБН") - [ЕП291 Indicative](/materials/gost/ep291 "GOST ЕП291") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 13 elements on file · weight % What this alloy is Fe Cr Mo Si Iron — the balance, never listed by a standard — 86.8 % Cr — 10.8 % Mo — 0.7 % Si — 0.5 % Traces & impurities · 1.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.17–0.23 | | Si | ≤ 0.5 | | Mn | ≤0,40-0,90 | | P | 0.025 | | S | 0.015 | | Cr | 10–11.5 | | Mo | 0.5–0.8 | | Ni | 0.2–0.6 | | V | 0.1–0.3 | | Al | ≤ 0.02 | | Nb | 0.25–0.55 | | N | 0.05–0.1 | | B | ≤ 0.0015 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium Aluminium Niobium Nitrogen Boron 0.01 % 0.1 % 1 % 10 % 100 % The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other. | Element | As published source text, verbatim | Min% by weight | Max% by weight | Bound | |---|---|---|---|---| | B | ≤0,0015 | — | 0.002 | Max | | C | 0,17-0,23 | 0.170 | 0.230 | Range | | N | 0,05-0,10 | 0.050 | 0.100 | Range | | Al | ≤0,020g | — | 0.020 | Max | | Si | ≤0,50 | — | 0.500 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | V | 0,10-0,30 | 0.100 | 0.300 | Range | | Cr | 10,0-11,5 | 10.000 | 11.500 | Range | | Mn | ≤0,40-0,90 | — | — | No numeric bound | | Ni | 0,20-0,60 | 0.200 | 0.600 | Range | | Nb | 0,25-0,55 | 0.250 | 0.550 | Range | | Mo | 0,50-0,80 | 0.500 | 0.800 | Range | The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred. ## Predicted transformation temperatures Not enough recorded composition to predict a transformation temperature for this grade — missing: Mn. ## Physical & mechanical properties Density 7,85 g/cm³ Exact An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material. ## Properties by condition 1 conditions · 1 values By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 302 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Cr / Mo that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [1.4922 1.4922 Cr 10,0-12,5 · Mo 0,80-1,20 - ΔCr 0.50 - ΔMo 0.35 - 16 designations](/materials/material-no/1.4922 "1.4922")[X19CrMo12-1 1.4921 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 1.00 - ΔMo 0.35 - 3 designations](/materials/din-en/x19crmo12-1 "X19CrMo12-1")[X22CrMoV12-1 1.4923 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 1.00 - ΔMo 0.35 - 9 designations](/materials/din-en/x22crmov12-1 "X22CrMoV12-1")[X21CrMoV12-1 1.4926 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 1.00 - ΔMo 0.35 - 1 designations](/materials/din-en/x21crmov12-1 "X21CrMoV12-1")[X23CrMoWMnNiV12-1-1 1.4929 Cr 11,0-12,5 · Mo 0,75-1,25 - ΔCr 1.00 - ΔMo 0.35 - 9 designations](/materials/din-en/x23crmowmnniv12-1-1 "X23CrMoWMnNiV12-1-1")[X20CrMoWV12-1 1.4935 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 1.00 - ΔMo 0.35 - 16 designations](/materials/din-en/x20crmowv12-1 "X20CrMoWV12-1") ## Looking for this grade under another name? Search the catalogue by designation, material number or composition — every name on this page is itself a way in. [Search](/search "Steel grade search")[Inquiry](/inquiry?material=57261a64-940c-4bbc-aecf-97c4977b5c02 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4913.pdf "Datasheet as PDF")