--- title: "1.8976 — Fine-grain steels for cold forming" description: "1.8976 is the material number of the grade also listed as QStE 650 TM. Category: Fine-grain steels for cold forming. Designations recorded for this grade: 3." canonical: https://steelequivalents.com/materials/material-no/1.8976 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.8976.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.8976.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.8976.md es: https://steelequivalents.com/es/materiales/número-de-material/1.8976.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.8976.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.8976.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.8976.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.8976.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.8976.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.8976.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.8976.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.8976.md zh: https://steelequivalents.com/zh/材料/材料编号/1.8976.md ja: https://steelequivalents.com/ja/材料/材料番号/1.8976.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.8976.md ko: https://steelequivalents.com/ko/재료/재료번호/1.8976.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.8976.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.8976.md content_hash: sha256:299e113e79c44f583fe38a8812cd6e8ceab804b9d950ee0be456eb02a16f2251 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/1.8976 > Canonical URL: https://steelequivalents.com/materials/material-no/1.8976 > 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 · 3 designations # 1.8976 1.8976 is the material number of the grade also listed as QStE 650 TM. It is a material in the category Fine-grain steels for cold forming. We list 3 designations recorded for this grade, in the standards DIN / EN. - ***Material no.* **1.8976**** - [*Category* **Fine-grain steels for cold forming · 27 grades**](/categories/fine-grain-steels-for-cold-forming "Category: Fine-grain steels for cold forming · 27 grades") - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=16fead84-71db-421e-a2e5-1bda7ec7e81b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8976.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN S650MC This grade’s own name](/materials/din-en/s650mc "DIN / EN S650MC") ## About Fine-grain steels for cold forming Fine-grain steels for cold forming are steels with a refined grain structure, combining strength with the ductility needed for deformation at low temperatures. They are used for formed components where reliable shaping and consistent mechanical performance are required. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 3 designations · 1 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. DIN / EN Europe · 3 - [1.0989 Indicative](/materials/din-en/1-0989 "DIN / EN 1.0989") - [QStE 650 TM This grade’s own name Withdrawn](/materials/din-en/qste-650-tm "DIN / EN QStE 650 TM") - [S650MC This grade’s own name](/materials/din-en/s650mc "DIN / EN S650MC") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 11 elements on file · weight % What this alloy is Fe Mn Si Mo Iron — the balance, never listed by a standard — 96.2 % Mn — 2 % Si — 0.6 % Mo — 0.5 % Traces & impurities · 0.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.12 | | Si | ≤ 0.6 | | Mn | ≤ 2 | | P | 0.025 | | S | 0.015 | | Mo | ≤ 0.5 | | V | ≤ 0.2 | | Al | ≥ 0.015 | | Ti | ≤ 0.22 | | Nb | ≤ 0.09 | | B | ≤ 0.005 | Carbon Silicon Manganese Phosphorus Sulfur Molybdenum Vanadium Aluminium Titanium Niobium Boron 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 | |---|---|---|---|---| | B | ≤0,005 | — | 0.005 | Max | | C | ≤0,12 | — | 0.120 | Max | | Al | ≥0,015 | 0.015 | — | Min | | Si | ≤0,60 | — | 0.600 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Ti | ≤0,22 | — | 0.220 | Max | | V | ≤0,20 | — | 0.200 | Max | | Mn | ≤2,00 | — | 2.000 | Max | | Nb | ≤0,09 | — | 0.090 | Max | | Mo | ≤0,50 | — | 0.500 | 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: Ni, Cr. ## 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. ## Properties by condition 1 conditions · 2 values By thickness**no delivery state stated** source `steelnumber` | Thickness mm | A80% · Lo = 80 mm | A% · Lo = 5,65 √So | |---|---|---| | ≤ 3 | 10 | — | | ≥ 3 | — | 12 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.8, a shared category, and a published range for Mn / Si 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. [1.0966 1.8974 Mn ≤2,10 · Si ≤0,60 - ΔMn 0.05 - ΔSi 0.00 - 6 designations](/materials/din-en/1-0966 "1.0966")[1.0988 1.8969 Mn ≤1,90 · Si ≤0,50 - ΔMn 0.05 - ΔSi 0.05 - 6 designations](/materials/din-en/1-0988 "1.0988") ## 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=16fead84-71db-421e-a2e5-1bda7ec7e81b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8976.pdf "Datasheet as PDF")