--- title: "Z4CNDNb1812M — Cast stainless steels" description: "Z4CNDNb1812M in AFNOR: material number 1.4581, also listed as G-X 5 CrNiMoNb 18 10. It is a material in the category Cast stainless steels." canonical: https://steelequivalents.com/materials/afnor/z4cndnb1812m language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/afnor/z4cndnb1812m.md cs: https://steelequivalents.com/cs/materiály/afnor/z4cndnb1812m.md de: https://steelequivalents.com/de/werkstoffe/afnor/z4cndnb1812m.md es: https://steelequivalents.com/es/materiales/afnor/z4cndnb1812m.md fr: https://steelequivalents.com/fr/matériaux/afnor/z4cndnb1812m.md hu: https://steelequivalents.com/hu/anyagok/afnor/z4cndnb1812m.md it: https://steelequivalents.com/it/materiali/afnor/z4cndnb1812m.md nl: https://steelequivalents.com/nl/materialen/afnor/z4cndnb1812m.md pl: https://steelequivalents.com/pl/materiały/afnor/z4cndnb1812m.md pt: https://steelequivalents.com/pt/materiais/afnor/z4cndnb1812m.md ru: https://steelequivalents.com/ru/материалы/afnor/z4cndnb1812m.md tr: https://steelequivalents.com/tr/malzemeler/afnor/z4cndnb1812m.md zh: https://steelequivalents.com/zh/材料/afnor/z4cndnb1812m.md ja: https://steelequivalents.com/ja/材料/afnor/z4cndnb1812m.md ar: https://steelequivalents.com/ar/المواد/afnor/z4cndnb1812m.md ko: https://steelequivalents.com/ko/재료/afnor/z4cndnb1812m.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor/z4cndnb1812m.md hi: https://steelequivalents.com/hi/सामग्री/afnor/z4cndnb1812m.md content_hash: sha256:b01539a520fc8eddf51cf1ade15c42e41c7c256c80d7e2b5b11e701987953843 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/afnor/z4cndnb1812m > Canonical URL: https://steelequivalents.com/materials/afnor/z4cndnb1812m > 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. AFNOR · France · 16 designations # Z4CNDNb1812M Z4CNDNb1812M is a designation in AFNOR for the material held under material number 1.4581, also listed as G-X 5 CrNiMoNb 18 10. It is a material in the category Cast stainless steels. We list 16 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, JIS, GOST, UNI, MSZ and STAS. - [*Material no.* **1.4581**](/materials/material-no/1.4581 "Material no.: 1.4581") - [*Category* **Cast stainless steels · 87 grades**](/categories/cast-stainless-steels "Category: Cast stainless steels · 87 grades") - *Designations* **16** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=1e0f538d-1da2-4bb4-9794-4f8a00b0f144&designation=f552b182-295e-4444-9af1-927bc13f81c0 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z4cndnb1812m.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN GX5CrNiMoNb19-11-2 This grade’s own name](/materials/din-en/gx5crnimonb19-11-2 "DIN / EN GX5CrNiMoNb19-11-2") - [UNS J92900 This grade’s own name · 2 grades on that route](/materials/uns/j92900 "UNS J92900") ## About Cast stainless steels Cast stainless steels are stainless-steel materials produced by casting, combining corrosion resistance with the ability to form complex component shapes. Their composition and mechanical behaviour vary by grade, and they are used for corrosion-resistant cast components such as pumps, valves and process equipment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 16 designations · 10 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 · 3 - [1.4581 Indicative](/materials/material-no/1.4581 "DIN / EN 1.4581") - [G-X 5 CrNiMoNb 18 10 This grade’s own name Withdrawn](/materials/din-en/g-x-5-crnimonb-18-10 "DIN / EN G-X 5 CrNiMoNb 18 10") - [GX5CrNiMoNb19-11-2 This grade’s own name](/materials/din-en/gx5crnimonb19-11-2 "DIN / EN GX5CrNiMoNb19-11-2") UNS United States · 1 - [J92900 This grade’s own name](/materials/uns/j92900 "UNS J92900") AISI / SAE United States · 1 - [J92971 Indicative](/materials/uns/j92971 "AISI / SAE J92971") BS United Kingdom · 3 - [318C17 Indicative](/materials/bs/318c17 "BS 318C17") - [845 grade Nb Indicative](/materials/bs/845-grade-nb "BS 845 grade Nb") - [ANC 4 grade C Indicative](/materials/bs/anc-4-grade-c "BS ANC 4 grade C") AFNOR France · 1 - **Z4CNDNb1812M Indicative** JIS Japan · 2 - [SCS20 Indicative](/materials/jis/scs20 "JIS SCS20") - [SCS22 Indicative](/materials/jis/scs22 "JIS SCS22") GOST Russia / CIS · 2 - [12KH18N12M3TL Indicative](/materials/gost/12kh18n12m3tl "GOST 12KH18N12M3TL") - [12Х18Н12М3ТЛ Indicative](/materials/gost/12kh18n12m3tl "GOST 12Х18Н12М3ТЛ") UNI Italy · 1 - [XG8CrNiMo1811 Indicative](/materials/uni/xg8crnimo1811 "UNI XG8CrNiMo1811") MSZ Hungary · 1 - [AoX10CrNiMoTi18-12 Indicative](/materials/msz/aox10crnimoti18-12 "MSZ AoX10CrNiMoTi18-12") STAS Romania · 1 - [T12TiMoNiCr175 Indicative](/materials/stas/t12timonicr175 "STAS T12TiMoNiCr175") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Cr Ni Mo Iron — the balance, never listed by a standard — 64.6 % Cr — 19 % Ni — 10.5 % Mo — 2.3 % Traces & impurities · 3.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.07 | | Si | ≤ 1.5 | | Mn | ≤ 1.5 | | P | 0.04 | | S | 0.03 | | Cr | 18–20 | | Mo | 2–2.5 | | Ni | 9–12 | | Cu | ≤ 0.5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Copper 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 | ≤0,07 | — | 0.070 | Max | | Si | ≤1,50 | — | 1.500 | Max | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 18,0-20,0 | 18.000 | 20.000 | Range | | Mn | ≤1,50 | — | 1.500 | Max | | Ni | 9,00-12,0 | 9.000 | 12.000 | Range | | Cu | ≤0,50 | — | 0.500 | Max | | Mo | 2,00-2,50 | 2.000 | 2.500 | Range | - ≥8xC≤1,00 - ≥8xC≤1,00 - ≥8xC≤1,00 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. ## Properties by condition 2 conditions · 9 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | HB | |---|---|---|---|---| | Casting | 440 | 205 | 28 | — | | Solution heat treatment | — | — | — | 183 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Casting, GOST 977-88 | 441 | 216 | 25 | 30 | 590 | 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 / Ni 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. [GX2CrNi19-11 1.4309 Cr 18,0-20,0 · Ni 9,00-12,0 - ΔCr 0.00 - ΔNi 0.00 - 13 designations](/materials/din-en/gx2crni19-11 "GX2CrNi19-11")[1.4408 1.4408 Cr 18,0-20,0 · Ni 9,00-12,0 - ΔCr 0.00 - ΔNi 0.00 - 17 designations](/materials/material-no/1.4408 "1.4408")[GX2CrNiMo19-11-2 1.4409 Cr 18,0-20,0 · Ni 9,00-12,0 - ΔCr 0.00 - ΔNi 0.00 - 11 designations](/materials/din-en/gx2crnimo19-11-2 "GX2CrNiMo19-11-2")[GX5CrNiNb19-11 1.4552 Cr 18,0-20,0 · Ni 9,00-12,0 - ΔCr 0.00 - ΔNi 0.00 - 15 designations](/materials/din-en/gx5crninb19-11 "GX5CrNiNb19-11")[GX8CrNi19-10 1.4815 Cr 18,0-20,0 · Ni 9,00-11,0 - ΔCr 0.00 - ΔNi 0.50 - 3 designations](/materials/din-en/gx8crni19-10 "GX8CrNi19-10")[1.4308 1.4308 Cr 18,0-20,0 · Ni 8,00-11,0 - ΔCr 0.00 - ΔNi 1.00 - 29 designations](/materials/material-no/1.4308 "1.4308") ## 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=1e0f538d-1da2-4bb4-9794-4f8a00b0f144&designation=f552b182-295e-4444-9af1-927bc13f81c0 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z4cndnb1812m.pdf "Datasheet as PDF")