--- title: "1.4625 — X12CrNiSe18-9, 23 equivalent designations" description: "1.4625 is the material number of the grade also listed as X12CrNiSe18-9. It is a material in the category Others. Designations recorded for this grade: 23." canonical: https://steelequivalents.com/materials/material-no/1.4625 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.4625.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.4625.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.4625.md es: https://steelequivalents.com/es/materiales/número-de-material/1.4625.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.4625.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.4625.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.4625.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.4625.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.4625.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.4625.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.4625.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.4625.md zh: https://steelequivalents.com/zh/材料/材料编号/1.4625.md ja: https://steelequivalents.com/ja/材料/材料番号/1.4625.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.4625.md ko: https://steelequivalents.com/ko/재료/재료번호/1.4625.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.4625.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.4625.md content_hash: sha256:24ed86a46e276c1cc1bd04d6ab6115a71cbc730ff5d2665f52f365bd9eb0e4c2 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/1.4625 > Canonical URL: https://steelequivalents.com/materials/material-no/1.4625 > 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 · 23 designations # 1.4625 1.4625 is the material number of the grade also listed as X12CrNiSe18-9. It is a material in the category Others. We list 23 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, SAE AMS, JIS and GB. - ***Material no.* **1.4625**** - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **23** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=54e7789c-acaa-4623-9f79-0c65c1ddadae "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4625.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X12CrNiSe18-9 This grade’s own name](/materials/din-en/x12crnise18-9 "DIN / EN X12CrNiSe18-9") - [UNS S30323 This grade’s own name](/materials/uns/s30323 "UNS S30323") - [AISI / SAE 303 Se This grade’s own name](/materials/aisi-sae/303-se "AISI / SAE 303 Se") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 23 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 · 1 - [X12CrNiSe18-9 This grade’s own name](/materials/din-en/x12crnise18-9 "DIN / EN X12CrNiSe18-9") UNS United States · 1 - [S30323 This grade’s own name](/materials/uns/s30323 "UNS S30323") AISI / SAE United States · 2 - [303 Se This grade’s own name](/materials/aisi-sae/303-se "AISI / SAE 303 Se") - [30303Se Indicative](/materials/aisi-sae/30303se "AISI / SAE 30303Se") ASTM United States · 13 - [A194 Indicative](/materials/astm/a194 "ASTM A194") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A320 Indicative](/materials/nbn/a320 "ASTM A320") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A511 Indicative](/materials/astm/a511 "ASTM A511") - [A581 Indicative](/materials/astm/a581 "ASTM A581") - [A582 Indicative](/materials/astm/a582 "ASTM A582") - [A895 Indicative](/materials/astm/a895 "ASTM A895") - [F593 Indicative](/materials/astm/f593 "ASTM F593") - [F594 Indicative](/materials/astm/f594 "ASTM F594") - [F738 Indicative](/materials/astm/f738 "ASTM F738") - [F836 Indicative](/materials/astm/f836 "ASTM F836") - [F880 Indicative](/materials/astm/f880 "ASTM F880") BS United Kingdom · 1 - [303S41 Indicative](/materials/bs/303s41 "BS 303S41") SAE AMS United States / Aerospace · 3 - [5640 Indicative](/materials/ams/5640 "SAE AMS 5640") - [5641 Indicative](/materials/ams/5641 "SAE AMS 5641") - [5738 Indicative](/materials/ams/5738 "SAE AMS 5738") JIS Japan · 1 - [SUS 303Se Indicative](/materials/jis/sus-303se "JIS SUS 303Se") GB China · 1 - [Y1Cr18Ni9Se Indicative](/materials/gb/y1cr18ni9se "GB Y1Cr18Ni9Se") 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 — 69.4 % Cr — 18 % Ni — 9 % Mn — 2 % Traces & impurities · 1.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.2 — Unusual | | S | 0.06 — Unusual | | Cr | 17–19 | | Ni | 8–10 | | Se | ≥ 0.15 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Selenium 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 | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,2 | 0.200 | 0.200 | Exact | | S | 0,06 | 0.060 | 0.060 | Exact | | Cr | 17,0-19,0 | 17.000 | 19.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 8,00-10,0 | 8.000 | 10.000 | Range | | Se | ≥0,15 | 0.150 | — | Min | 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 | 205 | 40 | 50 | 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. [X12CrNiSi18-9-3 1.4326 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.00 - ΔNi 0.00 - 11 designations](/materials/din-en/x12crnisi18-9-3 "X12CrNiSi18-9-3")[X6CrNiCuS18-9-2 1.4570 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.00 - ΔNi 0.00 - 5 designations](/materials/din-en/x6crnicus18-9-2 "X6CrNiCuS18-9-2")[X6CrNiCuS18-9-4 1.4651 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.00 - ΔNi 0.00 - 1 designations](/materials/din-en/x6crnicus18-9-4 "X6CrNiCuS18-9-4")[X12CrNiCuS 18-9-3 1.4667 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.00 - ΔNi 0.00 - 2 designations](/materials/din-en/x12crnicus18-9-3 "X12CrNiCuS 18-9-3")[GX45CrNiW18-9 1.4880 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.00 - ΔNi 0.00 - 1 designations](/materials/din-en/gx45crniw18-9 "GX45CrNiW18-9")[S34781 1.4554 Cr 18,0-20,0 · Ni 8,00-10,0 - ΔCr 1.00 - ΔNi 0.00 - 2 designations](/materials/uns/s34781 "S34781") ## 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=54e7789c-acaa-4623-9f79-0c65c1ddadae "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4625.pdf "Datasheet as PDF")