--- title: "5578 — composition, equivalents and standards" description: "5578 is a designation in SAE AMS for the grade also listed as S45500. Designations recorded for this grade: 6." canonical: https://steelequivalents.com/materials/ams/5578 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/ams/5578.md cs: https://steelequivalents.com/cs/materiály/ams/5578.md de: https://steelequivalents.com/de/werkstoffe/ams/5578.md es: https://steelequivalents.com/es/materiales/ams/5578.md fr: https://steelequivalents.com/fr/matériaux/ams/5578.md hu: https://steelequivalents.com/hu/anyagok/ams/5578.md it: https://steelequivalents.com/it/materiali/ams/5578.md nl: https://steelequivalents.com/nl/materialen/ams/5578.md pl: https://steelequivalents.com/pl/materiały/ams/5578.md pt: https://steelequivalents.com/pt/materiais/ams/5578.md ru: https://steelequivalents.com/ru/материалы/ams/5578.md tr: https://steelequivalents.com/tr/malzemeler/ams/5578.md zh: https://steelequivalents.com/zh/材料/ams/5578.md ja: https://steelequivalents.com/ja/材料/ams/5578.md ar: https://steelequivalents.com/ar/المواد/ams/5578.md ko: https://steelequivalents.com/ko/재료/ams/5578.md pt-br: https://steelequivalents.com/pt-br/materiais/ams/5578.md hi: https://steelequivalents.com/hi/सामग्री/ams/5578.md content_hash: sha256:a42c71bfc2c72f4f6307ba4e92cd23d3247a2d7c560bbe13895451e56a9e87a4 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/ams/5578 > Canonical URL: https://steelequivalents.com/materials/ams/5578 > 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. SAE AMS · United States / Aerospace · 6 designations # 5578 5578 is a designation in SAE AMS for the grade also listed as S45500. We list 6 designations recorded for this grade, in the standards UNS, ASTM and SAE AMS. - *Designations* **6** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=ffa7b026-9a27-498c-815c-285afd84f7ef&designation=bd758565-b327-4ca9-9e58-c4fce1aec4fc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/5578.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS S45500 This grade’s own name · 2 grades on that route](/materials/uns/s45500 "UNS S45500") ## Also known as 6 designations · 3 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 · 1 - [S45500 This grade’s own name](/materials/uns/s45500 "UNS S45500") ASTM United States · 2 - [A564 Indicative](/materials/astm/a564 "ASTM A564") - [A693 Grade XM16 Indicative](/materials/astm/a693-grade-xm16 "ASTM A693 Grade XM16") SAE AMS United States / Aerospace · 3 - **5578 Indicative tube** - [5617 Indicative bar](/materials/ams/5617 "SAE AMS 5617") - [5860 Indicative plate sheet strip](/materials/ams/5860 "SAE AMS 5860") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Predicted transformation temperatures Not enough recorded composition to predict a transformation temperature for this grade — missing: C, Mn, Si, Ni, Cr, Mo. ## Physical & mechanical properties 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=ffa7b026-9a27-498c-815c-285afd84f7ef&designation=bd758565-b327-4ca9-9e58-c4fce1aec4fc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/5578.pdf "Datasheet as PDF")