--- title: "5842 — composition, equivalents and standards" description: "5842 is a designation in SAE AMS for the grade also listed as R30159. We list 4 designations recorded for this grade, in the standards UNS and SAE AMS." canonical: https://steelequivalents.com/materials/ams/5842 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/ams/5842.md cs: https://steelequivalents.com/cs/materiály/ams/5842.md de: https://steelequivalents.com/de/werkstoffe/ams/5842.md es: https://steelequivalents.com/es/materiales/ams/5842.md fr: https://steelequivalents.com/fr/matériaux/ams/5842.md hu: https://steelequivalents.com/hu/anyagok/ams/5842.md it: https://steelequivalents.com/it/materiali/ams/5842.md nl: https://steelequivalents.com/nl/materialen/ams/5842.md pl: https://steelequivalents.com/pl/materiały/ams/5842.md pt: https://steelequivalents.com/pt/materiais/ams/5842.md ru: https://steelequivalents.com/ru/материалы/ams/5842.md tr: https://steelequivalents.com/tr/malzemeler/ams/5842.md zh: https://steelequivalents.com/zh/材料/ams/5842.md ja: https://steelequivalents.com/ja/材料/ams/5842.md ar: https://steelequivalents.com/ar/المواد/ams/5842.md ko: https://steelequivalents.com/ko/재료/ams/5842.md pt-br: https://steelequivalents.com/pt-br/materiais/ams/5842.md hi: https://steelequivalents.com/hi/सामग्री/ams/5842.md content_hash: sha256:2f00686ce8a3034103235d12d29dba30ec339d185599b88928e11e23b45e135d 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/ams/5842 > Canonical URL: https://steelequivalents.com/materials/ams/5842 > 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 · 4 designations # 5842 5842 is a designation in SAE AMS for the grade also listed as R30159. We list 4 designations recorded for this grade, in the standards UNS and SAE AMS. - *Designations* **4** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=4e7ecc44-7e5d-4db3-b696-9bbd793ed313&designation=a213f86d-0658-41fd-b830-5d43c9aa6150 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/5842.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS R30159 This grade’s own name](/materials/uns/r30159 "UNS R30159") ## Also known as 4 designations · 2 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 - [R30159 This grade’s own name](/materials/uns/r30159 "UNS R30159") SAE AMS United States / Aerospace · 3 - [5841 Indicative bar](/materials/ams/5841 "SAE AMS 5841") - **5842 Indicative bar** - [5843 Indicative bar](/materials/ams/5843 "SAE AMS 5843") 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=4e7ecc44-7e5d-4db3-b696-9bbd793ed313&designation=a213f86d-0658-41fd-b830-5d43c9aa6150 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ams/5842.pdf "Datasheet as PDF")