--- title: "40CrNiSi25-12 — Heat-resistant cast steels" description: "40CrNiSi25-12 in MSZ: material number 1.4826, also listed as GX40CrNiSi22-10. It is a material in the category Heat-resistant cast steels." canonical: https://steelequivalents.com/materials/msz/40crnisi25-12 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/msz/40crnisi25-12.md cs: https://steelequivalents.com/cs/materiály/msz/40crnisi25-12.md de: https://steelequivalents.com/de/werkstoffe/msz/40crnisi25-12.md es: https://steelequivalents.com/es/materiales/msz/40crnisi25-12.md fr: https://steelequivalents.com/fr/matériaux/msz/40crnisi25-12.md hu: https://steelequivalents.com/hu/anyagok/msz/40crnisi25-12.md it: https://steelequivalents.com/it/materiali/msz/40crnisi25-12.md nl: https://steelequivalents.com/nl/materialen/msz/40crnisi25-12.md pl: https://steelequivalents.com/pl/materiały/msz/40crnisi25-12.md pt: https://steelequivalents.com/pt/materiais/msz/40crnisi25-12.md ru: https://steelequivalents.com/ru/материалы/msz/40crnisi25-12.md tr: https://steelequivalents.com/tr/malzemeler/msz/40crnisi25-12.md zh: https://steelequivalents.com/zh/材料/msz/40crnisi25-12.md ja: https://steelequivalents.com/ja/材料/msz/40crnisi25-12.md ar: https://steelequivalents.com/ar/المواد/msz/40crnisi25-12.md ko: https://steelequivalents.com/ko/재료/msz/40crnisi25-12.md pt-br: https://steelequivalents.com/pt-br/materiais/msz/40crnisi25-12.md hi: https://steelequivalents.com/hi/सामग्री/msz/40crnisi25-12.md content_hash: sha256:ff3f23c05b857419d1a42cde9da88d38422674ff0fcebe584fa91d3d0f67f487 generated: 2026-09-22 --- > **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/msz/40crnisi25-12 > Canonical URL: https://steelequivalents.com/materials/msz/40crnisi25-12 > 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. MSZ · Hungary · 28 designations # 40CrNiSi25-12 40CrNiSi25-12 is a designation in MSZ for the material held under material number 1.4826, also listed as GX40CrNiSi22-10. It is a material in the category Heat-resistant cast steels. We list 28 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, JIS, GB, GOST, UNI, ČSN, PN, MSZ, STAS and KS. - [*Material no.* **1.4826**](/materials/material-no/1.4826 "Material no.: 1.4826") - [*Category* **Heat-resistant cast steels · 82 grades**](/categories/heat-resistant-cast-steels "Category: Heat-resistant cast steels · 82 grades") - *Designations* **28** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=5a6c4afa-5c28-4e9f-9f28-7599a45b8dd7&designation=0bd47139-65ee-4ced-94c1-e75b8347f16f "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/msz/40crnisi25-12.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN GX40CrNiSi22-10 This grade’s own name](/materials/din-en/gx40crnisi22-10 "DIN / EN GX40CrNiSi22-10") ## About Heat-resistant cast steels Heat-resistant cast steels are cast ferrous alloys formulated for service at elevated temperatures, where resistance to softening and thermal degradation is important. They are used for furnace components, heat-treatment equipment and other high-temperature plant parts that require cast shapes and dependable mechanical performance during heating. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 28 designations · 14 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 · 2 - [GX40CrNiSi22-10 This grade’s own name](/materials/din-en/gx40crnisi22-10 "DIN / EN GX40CrNiSi22-10") - [GX40CrNiSi22-9 This grade’s own name Withdrawn](/materials/din-en/gx40crnisi22-9 "DIN / EN GX40CrNiSi22-9") UNS United States · 2 - [J92502 Indicative](/materials/uns/j92502 "UNS J92502") - [J92803 Indicative](/materials/uns/j92803 "UNS J92803") AISI / SAE United States · 5 - [HF Indicative](/materials/aisi-sae/hf "AISI / SAE HF") - [HH Indicative](/materials/aisi-sae/hh "AISI / SAE HH") - [J93503 Indicative](/materials/uns/j93503 "AISI / SAE J93503") - [J94003 Indicative](/materials/uns/j94003 "AISI / SAE J94003") - [J94013 Indicative](/materials/uns/j94013 "AISI / SAE J94013") BS United Kingdom · 2 - [309C30 Indicative](/materials/bs/309c30 "BS 309C30") - [309C35 Indicative](/materials/bs/309c35 "BS 309C35") AFNOR France · 1 - [Z40CN25-12 Indicative](/materials/afnor/z40cn25-12 "AFNOR Z40CN25-12") JIS Japan · 4 - [SCH12 Indicative](/materials/jis/sch12 "JIS SCH12") - [SCH13A Indicative](/materials/jis/sch13a "JIS SCH13A") - [SCH17 Indicative](/materials/jis/sch17 "JIS SCH17") - [SCS17 Indicative](/materials/jis/scs17 "JIS SCS17") GB China · 1 - [ZG35Cr26Ni12 Indicative](/materials/gb/zg35cr26ni12 "GB ZG35Cr26Ni12") GOST Russia / CIS · 2 - [40KH24N12SL Indicative](/materials/gost/40kh24n12sl "GOST 40KH24N12SL") - [40Х24Н12СЛ Indicative](/materials/gost/40kh24n12sl "GOST 40Х24Н12СЛ") UNI Italy · 1 - [GX35CrNi25-12 Indicative](/materials/uni/gx35crni25-12 "UNI GX35CrNi25-12") ČSN Czechia · 2 - [422 934 Indicative](/materials/csn/422-934 "ČSN 422 934") - [422936 Indicative](/materials/csn/422936 "ČSN 422936") PN Poland · 1 - [LH23N18C Indicative](/materials/pn/lh23n18c "PN LH23N18C") MSZ Hungary · 1 - **40CrNiSi25-12 Indicative** STAS Romania · 1 - [T35NiCr260 Indicative](/materials/stas/t35nicr260 "STAS T35NiCr260") KS South Korea · 3 - [HRSC13A Indicative](/materials/ks/hrsc13a "KS HRSC13A") - [HRSC17 Indicative](/materials/ks/hrsc17 "KS HRSC17") - [SSC17 Indicative](/materials/ks/ssc17 "KS SSC17") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 63.3 % Cr — 22 % Ni — 10 % Mn — 2 % Traces & impurities · 2.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.3–0.5 | | Si | 1–2.5 | | Mn | ≤ 2 | | P | 0.04 | | S | 0.03 | | Cr | 21–23 | | Mo | ≤ 0.5 | | Ni | 9–11 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel 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 | 0,30-0,50 | 0.300 | 0.500 | Range | | Si | 1,00-2,50 | 1.000 | 2.500 | Range | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 21,0-23,0 | 21.000 | 23.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 9,00-11,0 | 9.000 | 11.000 | Range | | Mo | ≤0,50 | — | 0.500 | Max | 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. ## 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=5a6c4afa-5c28-4e9f-9f28-7599a45b8dd7&designation=0bd47139-65ee-4ced-94c1-e75b8347f16f "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/msz/40crnisi25-12.pdf "Datasheet as PDF")