--- title: "A829 — 6 equivalent grades, compared" description: "The designation A829 is carried by 6 different grades. Compare them on the elements that actually differ, then open the one your print means." canonical: https://steelequivalents.com/materials/astm/a829 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/astm/a829.md cs: https://steelequivalents.com/cs/materiály/astm/a829.md de: https://steelequivalents.com/de/werkstoffe/astm/a829.md es: https://steelequivalents.com/es/materiales/astm/a829.md fr: https://steelequivalents.com/fr/matériaux/astm/a829.md hu: https://steelequivalents.com/hu/anyagok/astm/a829.md it: https://steelequivalents.com/it/materiali/astm/a829.md nl: https://steelequivalents.com/nl/materialen/astm/a829.md pl: https://steelequivalents.com/pl/materiały/astm/a829.md pt: https://steelequivalents.com/pt/materiais/astm/a829.md ru: https://steelequivalents.com/ru/материалы/astm/a829.md tr: https://steelequivalents.com/tr/malzemeler/astm/a829.md zh: https://steelequivalents.com/zh/材料/astm/a829.md ja: https://steelequivalents.com/ja/材料/astm/a829.md ar: https://steelequivalents.com/ar/المواد/astm/a829.md ko: https://steelequivalents.com/ko/재료/astm/a829.md pt-br: https://steelequivalents.com/pt-br/materiais/astm/a829.md hi: https://steelequivalents.com/hi/सामग्री/astm/a829.md content_hash: sha256:729901909a42ddaf2620a9c99c5a8829dacc7cfaa41d2a565326daabe16d8824 generated: 2026-09-25 --- > **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/astm/a829 > Canonical URL: https://steelequivalents.com/materials/astm/a829 > 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. ASTM · United States · 6 grades # A829 The designation A829 is carried by 6 different grades. Compare them on the elements that actually differ, then open the one your print means. - *Matching grades* **6** - [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades") [Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry") ## Which of the 6 do you want? This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero. | Grade | Material no. | Category | Designations | C% | Cr% | Mn% | Ni% | Mo% | Si% | |---|---|---|---|---|---|---|---|---|---| | [1.6511](/materials/material-no/1.6511 "1.6511") | [1.6511](/materials/material-no/1.6511 "1.6511") 1.6 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 91 | 0,32-0,40 | 0,90-1,20 | 0,50-0,80 | 0,90-1,20 | 0,15-,30 | ≤0,40 | | [40NiCrMo6](/materials/din-en/40nicrmo6 "40NiCrMo6") | [1.6565](/materials/material-no/1.6565 "1.6565") 1.6 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 56 | 0,35-0,45 | 0,90-1,40 | 0,50-0,70 | 1,40-1,70 | 0,20-0,30 | 0,15-0,35 | | [30CrNiMo8](/materials/din-en/30crnimo8 "30CrNiMo8") | [1.6580](/materials/material-no/1.6580 "1.6580") 1.6 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 29 | 0,26-0,34 | 1,80-2,20 | 0,30-0,60 | 1,80-2,20 | 0,30-0,50 | ≤0,40 | | [1.6582](/materials/material-no/1.6582 "1.6582") | [1.6582](/materials/material-no/1.6582 "1.6582") 1.6 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 84 | 0,30-0,38 | 1,30-1,70 | 0,50-0,80 | 1,30-1,70 | 0,15-0,30 | ≤0,40 | | [1.7225](/materials/material-no/1.7225 "1.7225") | [1.7225](/materials/material-no/1.7225 "1.7225") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 95 | 0,38-0,45 | 0,90-1,20 | 0,60-0,90 | — | 0,15-0,30 | ≤0,40 | | [42CrMoS4](/materials/din-en/42crmos4 "42CrMoS4") | [1.7227](/materials/material-no/1.7227 "1.7227") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 28 | 0,38-0,45 | 0,90-1,20 | 0,60-0,90 | — | 0,15-0,30 | ≤0,40 | ## Not sure which one your print means? 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 "Inquiry")