--- title: "20H12M1F — High-temperature steels" description: "20H12M1F in PN: material number 1.4922, also listed as X20CrMoV11-1. Category: High-temperature steels. Designations recorded for this grade: 16." canonical: https://steelequivalents.com/materials/pn/20h12m1f language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/pn/20h12m1f.md cs: https://steelequivalents.com/cs/materiály/pn/20h12m1f.md de: https://steelequivalents.com/de/werkstoffe/pn/20h12m1f.md es: https://steelequivalents.com/es/materiales/pn/20h12m1f.md fr: https://steelequivalents.com/fr/matériaux/pn/20h12m1f.md hu: https://steelequivalents.com/hu/anyagok/pn/20h12m1f.md it: https://steelequivalents.com/it/materiali/pn/20h12m1f.md nl: https://steelequivalents.com/nl/materialen/pn/20h12m1f.md pl: https://steelequivalents.com/pl/materiały/pn/20h12m1f.md pt: https://steelequivalents.com/pt/materiais/pn/20h12m1f.md ru: https://steelequivalents.com/ru/материалы/pn/20h12m1f.md tr: https://steelequivalents.com/tr/malzemeler/pn/20h12m1f.md zh: https://steelequivalents.com/zh/材料/pn/20h12m1f.md ja: https://steelequivalents.com/ja/材料/pn/20h12m1f.md ar: https://steelequivalents.com/ar/المواد/pn/20h12m1f.md ko: https://steelequivalents.com/ko/재료/pn/20h12m1f.md pt-br: https://steelequivalents.com/pt-br/materiais/pn/20h12m1f.md hi: https://steelequivalents.com/hi/सामग्री/pn/20h12m1f.md content_hash: sha256:892a68c879e37ea67e82e77b877e5e2b2d34a02a03f3939bd5174d50a93460f7 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/pn/20h12m1f > Canonical URL: https://steelequivalents.com/materials/pn/20h12m1f > 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. PN · Poland · 16 designations # 20H12M1F 20H12M1F is a designation in PN for the material held under material number 1.4922, also listed as X20CrMoV11-1. It is a material in the category High-temperature steels. We list 16 designations recorded for this grade, in the standards DIN / EN, ISO, GB, GOST, UNI, SS, ČSN and PN. - [*Material no.* **1.4922**](/materials/material-no/1.4922 "Material no.: 1.4922") - [*Category* **High-temperature steels · 40 grades**](/categories/high-temperature-steels "Category: High-temperature steels · 40 grades") - *Designations* **16** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=63f6734c-1d72-484a-ad49-59488b50c248&designation=6ee8c098-e4c4-453d-8833-f3ba90cf06b4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/pn/20h12m1f.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X20CrMoV11-1 This grade’s own name](/materials/din-en/x20crmov11-1 "DIN / EN X20CrMoV11-1") ## 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 16 designations · 8 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 · 4 - [1.4922 Indicative](/materials/material-no/1.4922 "DIN / EN 1.4922") - [X20CrMoV11-1 This grade’s own name](/materials/din-en/x20crmov11-1 "DIN / EN X20CrMoV11-1") - [X20CrMoV12-1 This grade’s own name Withdrawn](/materials/din-en/x20crmov12-1 "DIN / EN X20CrMoV12-1") - [X22CrMoV12-1 Indicative](/materials/din-en/x22crmov12-1 "DIN / EN X22CrMoV12-1") ISO International · 1 - [X20CrMoNV11-1-1 Indicative](/materials/iso/x20crmonv11-1-1 "ISO X20CrMoNV11-1-1") GB China · 1 - [1Cr11MoV Indicative](/materials/gb/1cr11mov "GB 1Cr11MoV") GOST Russia / CIS · 4 - [20Ch11MNF Indicative](/materials/gost/20ch11mnf "GOST 20Ch11MNF") - [20Ch12MNF-Sh Indicative](/materials/gost/20ch12mnf-sh "GOST 20Ch12MNF-Sh") - [20Х11МНФ Indicative](/materials/gost/20kh11mnf "GOST 20Х11МНФ") - [20Х12МНФ-Ш Indicative](/materials/gost/20kh12mnf-sh "GOST 20Х12МНФ-Ш") UNI Italy · 1 - [X20CrMoNi1201 Indicative](/materials/uni/x20crmoni1201 "UNI X20CrMoNi1201") SS Sweden · 1 - [2317 Indicative](/materials/ss/2317 "SS 2317") ČSN Czechia · 2 - [17 134 Indicative](/materials/csn/17134 "ČSN 17 134") - [422 916 Indicative](/materials/csn/422-916 "ČSN 422 916") PN Poland · 2 - **20H12M1F Indicative** - [X20CrMoV121 Indicative](/materials/din-en/x20crmov12-1 "PN X20CrMoV121") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 11 elements on file · weight % What this alloy is Fe Cr Mo Mn Iron — the balance, never listed by a standard — 85.3 % Cr — 11.3 % Mo — 1 % Mn — 0.7 % Traces & impurities · 1.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.17–0.23 | | Si | ≤ 0.4 | | Mn | 0.3–1 | | P | 0.025 | | S | 0.015 | | Cr | 10–12.5 | | Mo | 0.8–1.2 | | Ni | 0.3–0.8 | | V | 0.2–0.35 | | Cu | ≤ 0.3 | | Al | ≤ 0.04 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium Copper Aluminium 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 | |---|---|---|---|---| | C | 0,17-0,23 | 0.170 | 0.230 | Range | | Al | ≤0,040 | — | 0.040 | Max | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | V | 0,20-0,35 | 0.200 | 0.350 | Range | | Cr | 10,0-12,5 | 10.000 | 12.500 | Range | | Mn | 0,30-1,00 | 0.300 | 1.000 | Range | | Ni | 0,30-0,80 | 0.300 | 0.800 | Range | | Cu | ≤0,30 | — | 0.300 | Max | | Mo | 0,80-1,20 | 0.800 | 1.200 | 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 This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## 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. ## 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. [X15CrMo12-1 1.4920 Cr 11,0-12,0 · Mo 1,00-1,30 - ΔCr 0.25 - ΔMo 0.15 - 1 designations](/materials/din-en/x15crmo12-1 "X15CrMo12-1")[X19CrMo12-1 1.4921 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 0.50 - ΔMo 0.00 - 3 designations](/materials/din-en/x19crmo12-1 "X19CrMo12-1")[X22CrMoV12-1 1.4923 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 0.50 - ΔMo 0.00 - 9 designations](/materials/din-en/x22crmov12-1 "X22CrMoV12-1")[X21CrMoV12-1 1.4926 Cr 11,0-12,5 · Mo 0,80-1,20 - ΔCr 0.50 - ΔMo 0.00 - 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 0.50 - ΔMo 0.00 - 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 0.50 - ΔMo 0.00 - 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=63f6734c-1d72-484a-ad49-59488b50c248&designation=6ee8c098-e4c4-453d-8833-f3ba90cf06b4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/pn/20h12m1f.pdf "Datasheet as PDF")