--- title: "304 S 61 — Stainless steels" description: "304 S 61 in BS: material number 1.4311, also listed as X2CrNiN18-10. Category: Stainless steels. Designations recorded for this grade: 55." canonical: https://steelequivalents.com/materials/bs/304-s-61 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/bs/304-s-61.md cs: https://steelequivalents.com/cs/materiály/bs/304-s-61.md de: https://steelequivalents.com/de/werkstoffe/bs/304-s-61.md es: https://steelequivalents.com/es/materiales/bs/304-s-61.md fr: https://steelequivalents.com/fr/matériaux/bs/304-s-61.md hu: https://steelequivalents.com/hu/anyagok/bs/304-s-61.md it: https://steelequivalents.com/it/materiali/bs/304-s-61.md nl: https://steelequivalents.com/nl/materialen/bs/304-s-61.md pl: https://steelequivalents.com/pl/materiały/bs/304-s-61.md pt: https://steelequivalents.com/pt/materiais/bs/304-s-61.md ru: https://steelequivalents.com/ru/материалы/bs/304-s-61.md tr: https://steelequivalents.com/tr/malzemeler/bs/304-s-61.md zh: https://steelequivalents.com/zh/材料/bs/304-s-61.md ja: https://steelequivalents.com/ja/材料/bs/304-s-61.md ar: https://steelequivalents.com/ar/المواد/bs/304-s-61.md ko: https://steelequivalents.com/ko/재료/bs/304-s-61.md pt-br: https://steelequivalents.com/pt-br/materiais/bs/304-s-61.md hi: https://steelequivalents.com/hi/सामग्री/bs/304-s-61.md content_hash: sha256:8ea40d5810d5a808e17997f346e8518aedc98e4ce170f8a625a095a539759c20 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/bs/304-s-61 > Canonical URL: https://steelequivalents.com/materials/bs/304-s-61 > 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. BS · United Kingdom · 55 designations # 304 S 61 304 S 61 is a designation in BS for the material held under material number 1.4311, also listed as X2CrNiN18-10. It is a material in the category Stainless steels. We list 55 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, JIS, GB, UNI, SS, ČSN, PN and JUS. - [*Material no.* **1.4311**](/materials/material-no/1.4311 "Material no.: 1.4311") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **55** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=4c7960e8-f56e-4792-9596-4c0afd6c9671&designation=96794057-ef5e-41e3-90d2-1bd915fab603 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/304-s-61.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X2CrNiN18-10 This grade’s own name](/materials/din-en/x2crnin18-10 "DIN / EN X2CrNiN18-10") - [UNS S30453 This grade’s own name · 6 grades on that route](/materials/uns/s30453 "UNS S30453") - [AISI / SAE 304LN This grade’s own name · 6 grades on that route](/materials/aisi-sae/304ln "AISI / SAE 304LN") ## About Stainless steels Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 55 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 · 3 - [1.4311 Indicative](/materials/material-no/1.4311 "DIN / EN 1.4311") - [X2CrNiN18-10 This grade’s own name](/materials/din-en/x2crnin18-10 "DIN / EN X2CrNiN18-10") - [X2CrNiN18-9 This grade’s own name](/materials/din-en/x2crnin18-9 "DIN / EN X2CrNiN18-9") UNS United States · 5 - [S30300 Indicative](/materials/uns/s30300 "UNS S30300") - [S30400 Indicative](/materials/uns/s30400 "UNS S30400") - [S30403 Indicative](/materials/uns/s30403 "UNS S30403") - [S30453 This grade’s own name](/materials/uns/s30453 "UNS S30453") - [S30500 Indicative](/materials/uns/s30500 "UNS S30500") AISI / SAE United States · 6 - [303 Indicative](/materials/aisi-sae/303 "AISI / SAE 303") - [304 Indicative](/materials/aisi-sae/304 "AISI / SAE 304") - [304L Indicative](/materials/aisi-sae/304l "AISI / SAE 304L") - [304LN This grade’s own name](/materials/aisi-sae/304ln "AISI / SAE 304LN") - [305 Indicative](/materials/aisi-sae/305 "AISI / SAE 305") - [S30453 Indicative](/materials/uns/s30453 "AISI / SAE S30453") ASTM United States · 24 - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A182 Indicative](/materials/aisi-sae/a182 "ASTM A182") - [A193 Indicative](/materials/astm/a193 "ASTM A193") - [A194 Indicative](/materials/astm/a194 "ASTM A194") - [A213 Indicative](/materials/astm/a213 "ASTM A213") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A269 Indicative](/materials/astm/a269 "ASTM A269") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A312 Indicative](/materials/astm/a312 "ASTM A312") - [A320 Indicative](/materials/nbn/a320 "ASTM A320") - [A358 Indicative](/materials/astm/a358 "ASTM A358") - [A376 Indicative](/materials/astm/a376 "ASTM A376") - [A403 Indicative](/materials/astm/a403 "ASTM A403") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [A666 Indicative](/materials/astm/a666 "ASTM A666") - [A688 Indicative](/materials/astm/a688 "ASTM A688") - [A813 Indicative](/materials/astm/a813 "ASTM A813") - [A924 Indicative](/materials/astm/a924 "ASTM A924") - [A943 Indicative](/materials/astm/a943 "ASTM A943") - [A965 Indicative](/materials/astm/a965 "ASTM A965") - [A988 Indicative](/materials/astm/a988 "ASTM A988") - [TP304 Indicative](/materials/astm/tp304 "ASTM TP304") - [TP304L Indicative](/materials/astm/tp304l "ASTM TP304L") BS United Kingdom · 2 - **304 S 61 Indicative** - [304S62 Indicative](/materials/bs/304s62 "BS 304S62") AFNOR France · 3 - [Z2CN18.10 Indicative](/materials/afnor/z2cn18-10 "AFNOR Z2CN18.10") - [Z2CN18.10AZ Indicative](/materials/afnor/z2cn18-10az "AFNOR Z2CN18.10AZ") - [Z3CN18-10Az Indicative](/materials/afnor/z3cn18-10az "AFNOR Z3CN18-10Az") UNE Spain · 2 - [F. 3541 Indicative](/materials/une/f-3541 "UNE F. 3541") - [X 2 CrNiN 18-10 Indicative](/materials/din-en/x2crnin18-10 "UNE X 2 CrNiN 18-10") JIS Japan · 2 - [SUS F 304LN Indicative](/materials/jis/susf304ln "JIS SUS F 304LN") - [SUS304LN Indicative](/materials/jis/sus304ln "JIS SUS304LN") GB China · 1 - [0Cr18Ni10N Indicative](/materials/gb/0cr18ni10n "GB 0Cr18Ni10N") UNI Italy · 1 - [X2CrNiN1811 Indicative](/materials/din-en/x2crnin18-11 "UNI X2CrNiN1811") SS Sweden · 1 - [2371 Indicative](/materials/ss/2371 "SS 2371") ČSN Czechia · 1 - [17259VN Indicative](/materials/csn/17259vn "ČSN 17259VN") PN Poland · 3 - [00H18N10 Indicative](/materials/pn/00h18n10 "PN 00H18N10") - [0H18N10 Indicative](/materials/pn/0h18n10 "PN 0H18N10") - [0H18N9 Indicative](/materials/pn/0h18n9 "PN 0H18N9") JUS former Yugoslavia · 1 - [Č.45707 Indicative](/materials/jus/c-45707 "JUS Č.45707") 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 — 68.2 % Cr — 18.5 % Ni — 10 % Mn — 2 % Traces & impurities · 1.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.03 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 17.5–19.5 | | Ni | 8.5–11.5 | | N | 0.12–0.22 | 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 | ≤0,030 | — | 0.030 | Max | | N | 0,12-0,22 | 0.120 | 0.220 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 17,5-19,5 | 17.500 | 19.500 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 8,50-11,50 | 8.500 | 11.500 | 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 7,95 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 3 conditions · 8 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | HB | HRB | HV | |---|---|---|---|---|---|---| | Plate/Sheet Hot-rolled | 550 | 245 | 40 | — | — | — | | Hot-rolled | — | — | — | 217 | 95 | 220 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 230 | By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 210 | 5 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition. 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. ## Heat treatment Supply condition - Solution annealing and Annealing T≤60 - Solution annealing Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMTc5Mjc_ "Source: www.caishuku.com") ## 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. [1.4301 1.4301 Cr 17,5-19,5 · Ni 8,00-10,5 - ΔCr 0.00 - ΔNi 0.75 - 170 designations](/materials/material-no/1.4301 "1.4301")[1.4307 1.4307 Cr 17,5-19,5 · Ni 8,00-10,5 - ΔCr 0.00 - ΔNi 0.75 - 88 designations](/materials/material-no/1.4307 "1.4307")[X5CrNiN19-9 1.4315 Cr 18,0-20,0 · Ni 8,00-11,0 - ΔCr 0.50 - ΔNi 0.50 - 26 designations](/materials/din-en/x5crnin19-9 "X5CrNiN19-9")[X1CrNi19-9 1.4316 Cr 18,2-20,8 · Ni 9,20-10,8 - ΔCr 1.00 - ΔNi 0.00 - 11 designations](/materials/din-en/x1crni19-9 "X1CrNi19-9")[1.4541 1.4541 Cr 17,0-19,0 · Ni 9,00-12,0 - ΔCr 0.50 - ΔNi 0.50 - 175 designations](/materials/material-no/1.4541 "1.4541")[1.4550 1.4550 Cr 17,0-19,0 · Ni 9,00-12,0 - ΔCr 0.50 - ΔNi 0.50 - 107 designations](/materials/material-no/1.4550 "1.4550") ## 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=4c7960e8-f56e-4792-9596-4c0afd6c9671&designation=96794057-ef5e-41e3-90d2-1bd915fab603 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/304-s-61.pdf "Datasheet as PDF")