--- title: "1.4324 — Special steels for aviation and aerospace" description: "1.4324 is the material number of the grade also listed as S30100. It is a material in the category Special steels for aviation and aerospace." canonical: https://steelequivalents.com/materials/material-no/1.4324 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.4324.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.4324.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.4324.md es: https://steelequivalents.com/es/materiales/número-de-material/1.4324.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.4324.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.4324.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.4324.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.4324.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.4324.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.4324.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.4324.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.4324.md zh: https://steelequivalents.com/zh/材料/材料编号/1.4324.md ja: https://steelequivalents.com/ja/材料/材料番号/1.4324.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.4324.md ko: https://steelequivalents.com/ko/재료/재료번호/1.4324.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.4324.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.4324.md content_hash: sha256:3aeeb3e74c2d24f00ffe2e6857739c771257275ba3430e954ecca62cb739f8ce 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/1.4324 > Canonical URL: https://steelequivalents.com/materials/material-no/1.4324 > 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 · 52 designations # 1.4324 1.4324 is the material number of the grade also listed as S30100. It is a material in the category Special steels for aviation and aerospace. We list 52 designations recorded for this grade, in the standards UNS, AISI / SAE, ASTM, BS, SAE AMS, JIS, GB and ABNT NBR. - ***Material no.* **1.4324**** - [*Category* **Special steels for aviation and aerospace · 39 grades**](/categories/special-steels-for-aviation-and-aerospace "Category: Special steels for aviation and aerospace · 39 grades") - *Designations* **52** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=61a88e3a-da3b-44b9-9400-8569b7698499 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4324.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS S30100 This grade’s own name · 3 grades on that route](/materials/uns/s30100 "UNS S30100") - [AISI / SAE 301 This grade’s own name · 4 grades on that route](/materials/aisi-sae/301 "AISI / SAE 301") ## About Special steels for aviation and aerospace Special steels for aviation and aerospace are engineered steels designed to provide controlled mechanical properties and reliable performance in demanding service. Their alloying and heat-treatment capabilities support components that require a combination of strength, toughness and fatigue resistance, including aircraft structures and engine parts. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 52 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. UNS United States · 2 - [S30100 This grade’s own name](/materials/uns/s30100 "UNS S30100") - [S30200 This grade’s own name](/materials/uns/s30200 "UNS S30200") AISI / SAE United States · 4 - [301 This grade’s own name](/materials/aisi-sae/301 "AISI / SAE 301") - [302 This grade’s own name](/materials/aisi-sae/302 "AISI / SAE 302") - [30301 Indicative](/materials/aisi-sae/30301 "AISI / SAE 30301") - [30302 Indicative](/materials/aisi-sae/30302 "AISI / SAE 30302") ASTM United States · 20 - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A264 Indicative](/materials/astm/a264 "ASTM A264") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A313 Indicative](/materials/astm/a313 "ASTM A313") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A368 Indicative](/materials/astm/a368 "ASTM A368") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A478 Indicative](/materials/astm/a478 "ASTM A478") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A492 Indicative](/materials/astm/a492 "ASTM A492") - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [A511 Indicative](/materials/astm/a511 "ASTM A511") - [A554 Indicative](/materials/astm/a554 "ASTM A554") - [A580 Indicative](/materials/astm/a580 "ASTM A580") - [A666 Indicative](/materials/astm/a666 "ASTM A666") - [F1669 Indicative](/materials/astm/f1669 "ASTM F1669") - [F2215 Indicative](/materials/astm/f2215 "ASTM F2215") - [F599 Indicative](/materials/astm/f599 "ASTM F599") - [F899 Indicative](/materials/astm/f899 "ASTM F899") BS United Kingdom · 1 - [302S25 Indicative](/materials/bs/302s25 "BS 302S25") SAE AMS United States / Aerospace · 21 - [5358 Indicative](/materials/ams/5358 "SAE AMS 5358") - [5500 Indicative](/materials/ams/5500 "SAE AMS 5500") - [5515 Indicative](/materials/ams/5515 "SAE AMS 5515") - [5516 Indicative](/materials/ams/5516 "SAE AMS 5516") - [5517 Indicative](/materials/ams/5517 "SAE AMS 5517") - [5518 Indicative](/materials/ams/5518 "SAE AMS 5518") - [5519 Indicative](/materials/ams/5519 "SAE AMS 5519") - [5600 Indicative](/materials/ams/5600 "SAE AMS 5600") - [5636 Indicative](/materials/ams/5636 "SAE AMS 5636") - [5637 Indicative](/materials/ams/5637 "SAE AMS 5637") - [5688 Indicative](/materials/ams/5688 "SAE AMS 5688") - [5693 Indicative](/materials/ams/5693 "SAE AMS 5693") - [5866 Indicative](/materials/ams/5866 "SAE AMS 5866") - [5901 Indicative](/materials/ams/5901 "SAE AMS 5901") - [5902 Indicative](/materials/ams/5902 "SAE AMS 5902") - [5903 Indicative](/materials/ams/5903 "SAE AMS 5903") - [5904 Indicative](/materials/ams/5904 "SAE AMS 5904") - [5905 Indicative](/materials/ams/5905 "SAE AMS 5905") - [5906 Indicative](/materials/ams/5906 "SAE AMS 5906") - [6693 Indicative](/materials/ams/6693 "SAE AMS 6693") - [7241 Indicative](/materials/ams/7241 "SAE AMS 7241") JIS Japan · 1 - [SUS 302 Indicative](/materials/jis/sus302 "JIS SUS 302") GB China · 1 - [1Cr18Ni9 Indicative](/materials/gb/1cr18ni9 "GB 1Cr18Ni9") ABNT NBR Brazil · 2 - [301 Indicative](/materials/aisi-sae/301 "ABNT NBR 301") - [302 Indicative](/materials/aisi-sae/302 "ABNT NBR 302") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 71.8 % Cr — 17 % Ni — 8 % Mn — 2 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.12 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.03 | | Cr | 16–18 | | Ni | 7–9 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 | ≤0,12 | — | 0.120 | Max | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 16,0-18,0 | 16.000 | 18.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 7,00-9,00 | 7.000 | 9.000 | 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. ## 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. [S17700 1.4564 Cr 16,0-18,0 · Ni 6,50-7,75 - ΔCr 0.00 - ΔNi 0.88 - 15 designations](/materials/uns/s17700 "S17700")[S30400 1.4314 Cr 17,0-19,0 · Ni 8,50-10,5 - ΔCr 1.00 - ΔNi 1.50 - 86 designations](/materials/uns/s30400 "S30400")[S15700 1.4574 Cr 14,0-16,0 · Ni 6,50-7,75 - ΔCr 2.00 - ΔNi 0.88 - 4 designations](/materials/uns/s15700 "S15700")[S30347 1.4544 Cr 17,0-19,0 · Ni 9,00-11,5 - ΔCr 1.00 - ΔNi 2.25 - 69 designations](/materials/uns/s30347 "S30347")[X5CrNiNb18-10 1.4546 Cr 17,0-19,0 · Ni 9,00-11,5 - ΔCr 1.00 - ΔNi 2.25 - 70 designations](/materials/din-en/x5crninb18-10 "X5CrNiNb18-10") ## 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=61a88e3a-da3b-44b9-9400-8569b7698499 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.4324.pdf "Datasheet as PDF")