--- title: "1.4373 — Non-magnetic steels" description: "1.4373 is the material number of the grade also listed as X12CrMnNiN18-9-5. Category: Non-magnetic steels. Designations recorded for this grade: 31." canonical: https://steelequivalents.com/materials/material-no/1.4373 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.4373.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.4373.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.4373.md es: https://steelequivalents.com/es/materiales/número-de-material/1.4373.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.4373.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.4373.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.4373.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.4373.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.4373.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.4373.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.4373.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.4373.md zh: https://steelequivalents.com/zh/材料/材料编号/1.4373.md ja: https://steelequivalents.com/ja/材料/材料番号/1.4373.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.4373.md ko: https://steelequivalents.com/ko/재료/재료번호/1.4373.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.4373.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.4373.md content_hash: sha256:bdba90965b50434ac2ac315df97de7e17331902f300af60aa0901662776af498 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/1.4373 > Canonical URL: https://steelequivalents.com/materials/material-no/1.4373 > 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 · 31 designations # 1.4373 1.4373 is the material number of the grade also listed as X12CrMnNiN18-9-5. It is a material in the category Non-magnetic steels. We list 31 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, ISO, JIS, GB, GOST, ČSN, STN, PN and KS. - ***Material no.* **1.4373**** - [*Category* **Non-magnetic steels · 31 grades**](/categories/non-magnetic-steels "Category: Non-magnetic steels · 31 grades") - *Designations* **31** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=0b4a65bf-d535-4736-98f6-9dba68651c65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4373.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X12CrMnNiN18-9-5 This grade’s own name](/materials/din-en/x12crmnnin18-9-5 "DIN / EN X12CrMnNiN18-9-5") - [UNS S20200 This grade’s own name · 3 grades on that route](/materials/uns/s20200 "UNS S20200") - [AISI / SAE 202 This grade’s own name · 3 grades on that route](/materials/aisi-sae/202 "AISI / SAE 202") ## 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 31 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 · 1 - [X12CrMnNiN18-9-5 This grade’s own name](/materials/din-en/x12crmnnin18-9-5 "DIN / EN X12CrMnNiN18-9-5") UNS United States · 2 - [S20100 Indicative](/materials/uns/s20100 "UNS S20100") - [S20200 This grade’s own name](/materials/uns/s20200 "UNS S20200") AISI / SAE United States · 4 - [201 Indicative](/materials/aisi-sae/201 "AISI / SAE 201") - [202 This grade’s own name](/materials/aisi-sae/202 "AISI / SAE 202") - [20202 Indicative](/materials/aisi-sae/20202 "AISI / SAE 20202") - [S20200 Indicative](/materials/uns/s20200 "AISI / SAE S20200") ASTM United States · 9 - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A213 Indicative](/materials/astm/a213 "ASTM A213") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A666 Indicative](/materials/astm/a666 "ASTM A666") BS United Kingdom · 1 - [284S16 Indicative](/materials/bs/284s16 "BS 284S16") AFNOR France · 1 - [Z12CMN17-07Az Indicative](/materials/afnor/z12cmn17-07az "AFNOR Z12CMN17-07Az") ISO International · 1 - [X12CrMnNiN18-9-5 Indicative](/materials/din-en/x12crmnnin18-9-5 "ISO X12CrMnNiN18-9-5") JIS Japan · 2 - [SUS201 Indicative](/materials/jis/sus201 "JIS SUS201") - [SUS202 Indicative](/materials/jis/sus202 "JIS SUS202") GB China · 3 - [12Cr17Mn6Ni5N Indicative](/materials/gb/12cr17mn6ni5n "GB 12Cr17Mn6Ni5N") - [12Cr18Mn9Ni5N Indicative](/materials/gb/12cr18mn9ni5n "GB 12Cr18Mn9Ni5N") - [1Cr18Mn8Ni5N Indicative](/materials/gb/1cr18mn8ni5n "GB 1Cr18Mn8Ni5N") GOST Russia / CIS · 3 - [12Ch17G9AN4 Indicative](/materials/gost/12ch17g9an4 "GOST 12Ch17G9AN4") - [12Х17Г9АН4 Indicative](/materials/gost/12kh17g9an4 "GOST 12Х17Г9АН4") - [EI878 Indicative](/materials/gost/ei878 "GOST EI878") ČSN Czechia · 1 - [17460 Indicative](/materials/csn/17460 "ČSN 17460") STN Slovakia · 1 - [17 460 Indicative](/materials/csn/17460 "STN 17 460") PN Poland · 1 - [1H17N4G9 Indicative](/materials/pn/1h17n4g9 "PN 1H17N4G9") KS South Korea · 1 - [STS201 Indicative](/materials/ks/sts201 "KS STS201") 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 Mn Ni Iron — the balance, never listed by a standard — 66.6 % Cr — 18 % Mn — 9 % Ni — 5 % Traces & impurities · 1.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 1 | | Mn | 7.5–10.5 | | P | 0.045 | | S | 0.015 | | Cr | 17–19 | | Ni | 4–6 | | N | 0.05–0.25 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Nitrogen 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 | ≤0,15 | — | 0.150 | Max | | N | 0,05-0,25 | 0.050 | 0.250 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 17,0-19,0 | 17.000 | 19.000 | Range | | Mn | 7,50-10,5 | 7.500 | 10.500 | Range | | Ni | 4,00-6,00 | 4.000 | 6.000 | 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: 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. ## Properties by condition 1 conditions · 4 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | Z% | |---|---|---|---|---| | Bars/Rods | 520 | 275 | 40 | 45 | 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. ## 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=0b4a65bf-d535-4736-98f6-9dba68651c65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4373.pdf "Datasheet as PDF")