--- title: "NiCo 29 18 — Non-magnetic steels" description: "NiCo 29 18 in DIN / EN: material number 1.3981, also listed as X3NiCo29-18. Category: Non-magnetic steels. Designations recorded for this grade: 5." canonical: https://steelequivalents.com/materials/din-en/nico-29-18 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/nico-29-18.md cs: https://steelequivalents.com/cs/materiály/din-en/nico-29-18.md de: https://steelequivalents.com/de/werkstoffe/din-en/nico-29-18.md es: https://steelequivalents.com/es/materiales/din-en/nico-29-18.md fr: https://steelequivalents.com/fr/matériaux/din-en/nico-29-18.md hu: https://steelequivalents.com/hu/anyagok/din-en/nico-29-18.md it: https://steelequivalents.com/it/materiali/din-en/nico-29-18.md nl: https://steelequivalents.com/nl/materialen/din-en/nico-29-18.md pl: https://steelequivalents.com/pl/materiały/din-en/nico-29-18.md pt: https://steelequivalents.com/pt/materiais/din-en/nico-29-18.md ru: https://steelequivalents.com/ru/материалы/din-en/nico-29-18.md tr: https://steelequivalents.com/tr/malzemeler/din-en/nico-29-18.md zh: https://steelequivalents.com/zh/材料/din-en/nico-29-18.md ja: https://steelequivalents.com/ja/材料/din-en/nico-29-18.md ar: https://steelequivalents.com/ar/المواد/din-en/nico-29-18.md ko: https://steelequivalents.com/ko/재료/din-en/nico-29-18.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/nico-29-18.md hi: https://steelequivalents.com/hi/सामग्री/din-en/nico-29-18.md content_hash: sha256:c8da6b52b4e6981cd8efcc63a19211a5f14bfafa411c9599f1e9e08fe028c868 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/din-en/nico-29-18 > Canonical URL: https://steelequivalents.com/materials/din-en/nico-29-18 > 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. DIN / EN · Europe · 5 designations # NiCo 29 18 NiCo 29 18 is a designation in DIN / EN for the material held under material number 1.3981, also listed as X3NiCo29-18. It is a material in the category Non-magnetic steels. We list 5 designations recorded for this grade, in the standards DIN / EN, UNS, ASTM and AFNOR. - [*Material no.* **1.3981**](/materials/material-no/1.3981 "Material no.: 1.3981") - [*Category* **Non-magnetic steels · 31 grades**](/categories/non-magnetic-steels "Category: Non-magnetic steels · 31 grades") - *Designations* **5** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=ec8f5332-4577-4f5b-8728-4877b9740dcf&designation=8076dc01-49bc-401e-aa75-4e11e509cc4a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/nico-29-18.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X3NiCo29-18 This grade’s own name](/materials/din-en/x3nico29-18 "DIN / EN X3NiCo29-18") - [UNS K94610 This grade’s own name](/materials/uns/k94610 "UNS K94610") ## About Non-magnetic steels Non-magnetic steels are alloy steels designed to have very low magnetic response while retaining useful mechanical strength and ductility. They are used for components and structures where magnetic interference must be minimised, including specialised electrical, laboratory and mechanical equipment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 5 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 · 2 - **NiCo 29 18 This grade’s own name** - [X3NiCo29-18 This grade’s own name](/materials/din-en/x3nico29-18 "DIN / EN X3NiCo29-18") UNS United States · 1 - [K94610 This grade’s own name](/materials/uns/k94610 "UNS K94610") ASTM United States · 1 - [F 15 Indicative](/materials/astm/f-15 "ASTM F 15") AFNOR France · 1 - [NF A54-301 Indicative](/materials/afnor/nf-a54-301 "AFNOR NF A54-301") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 6 elements on file · weight % What this alloy is Fe Ni Co Mn Iron — the balance, never listed by a standard — 52.7 % Ni — 29 % Co — 17.5 % Mn — 0.5 % Traces & impurities · 0.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.05 | | Si | ≤ 0.3 | | Mn | ≤ 0.5 | | Ni | 28–30 — Unusual | | Co | 17–18 | | Fe | Balance | Carbon Silicon Manganese Nickel Cobalt Iron 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 | ≤0,05 | — | 0.050 | Max | | Si | ≤0,30 | — | 0.300 | Max | | Mn | ≤0,50 | — | 0.500 | Max | | Fe | Rest./Bal. | — | — | Balance | | Co | 17,0-18,0 (16,0-18,0) | 17.000 | 18.000 | Range | | Ni | 28,0-30,0 | 28.000 | 30.000 | 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: Cr, Mo. ## 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=ec8f5332-4577-4f5b-8728-4877b9740dcf&designation=8076dc01-49bc-401e-aa75-4e11e509cc4a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/nico-29-18.pdf "Datasheet as PDF")