--- title: "08Al — composition, equivalents and standards" description: "08Al: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gb/08al language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/08al.md cs: https://steelequivalents.com/cs/materiály/gb/08al.md de: https://steelequivalents.com/de/werkstoffe/gb/08al.md es: https://steelequivalents.com/es/materiales/gb/08al.md fr: https://steelequivalents.com/fr/matériaux/gb/08al.md hu: https://steelequivalents.com/hu/anyagok/gb/08al.md it: https://steelequivalents.com/it/materiali/gb/08al.md nl: https://steelequivalents.com/nl/materialen/gb/08al.md pl: https://steelequivalents.com/pl/materiały/gb/08al.md pt: https://steelequivalents.com/pt/materiais/gb/08al.md ru: https://steelequivalents.com/ru/материалы/gb/08al.md tr: https://steelequivalents.com/tr/malzemeler/gb/08al.md zh: https://steelequivalents.com/zh/材料/gb/08al.md ja: https://steelequivalents.com/ja/材料/gb/08al.md ar: https://steelequivalents.com/ar/المواد/gb/08al.md ko: https://steelequivalents.com/ko/재료/gb/08al.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/08al.md hi: https://steelequivalents.com/hi/सामग्री/gb/08al.md content_hash: sha256:fc713e13099007fdcb11375577859216bd1082ad3371831b2466cf6fc6649095 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/gb/08al > Canonical URL: https://steelequivalents.com/materials/gb/08al > 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. GB · China · 1 designation # 08Al 08Al is a grade designated under GB. Its recorded composition includes C ≤ 0.11%, Cr ≤ 0.1%, Mn ≤ 0.45%, Ni ≤ 0.3% and Cu ≤ 0.25%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm ≥ 325 N/mm² and A ≥ 33%. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=2117b680-6f74-4316-a6c3-c775b43a046d&designation=317bfed6-854c-4323-b150-916781546788 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/08al.pdf "Datasheet as PDF") ## Chemical composition 9 elements on file · weight % What this alloy is Fe Mn Ni Cu Iron — the balance, never listed by a standard — 98.7 % Mn — 0.5 % Ni — 0.3 % Cu — 0.3 % Traces & impurities · 0.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.11 | | Si | ≤ 0.03 | | Mn | ≤ 0.45 | | P | ≤ 0.035 | | S | ≤ 0.03 | | Cr | ≤ 0.1 | | Ni | ≤ 0.3 | | Cu | ≤ 0.25 | | Al | 0.015–0.065 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Copper Aluminium 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 | ≤0.11 | — | 0.110 | Max | | Al | 0.015-0.065 | 0.015 | 0.065 | Range | | Si | ≤0.03 | — | 0.030 | Max | | P | ≤0.035 | — | 0.035 | Max | | S | ≤0.03 | — | 0.030 | Max | | Cr | ≤0.1 | — | 0.100 | Max | | Mn | ≤0.45 | — | 0.450 | Max | | Ni | ≤0.3 | — | 0.300 | Max | | Cu | ≤0.25 | — | 0.250 | Max | 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 Rm ≥325 N/mm² Min A ≥33% Min 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=2117b680-6f74-4316-a6c3-c775b43a046d&designation=317bfed6-854c-4323-b150-916781546788 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/08al.pdf "Datasheet as PDF")