--- title: "QStE 380 TM — Fine-grain steels for cold forming" description: "QStE 380 TM: 2 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/qste-380-tm language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/qste-380-tm.md cs: https://steelequivalents.com/cs/materiály/din-en/qste-380-tm.md de: https://steelequivalents.com/de/werkstoffe/din-en/qste-380-tm.md es: https://steelequivalents.com/es/materiales/din-en/qste-380-tm.md fr: https://steelequivalents.com/fr/matériaux/din-en/qste-380-tm.md hu: https://steelequivalents.com/hu/anyagok/din-en/qste-380-tm.md it: https://steelequivalents.com/it/materiali/din-en/qste-380-tm.md nl: https://steelequivalents.com/nl/materialen/din-en/qste-380-tm.md pl: https://steelequivalents.com/pl/materiały/din-en/qste-380-tm.md pt: https://steelequivalents.com/pt/materiais/din-en/qste-380-tm.md ru: https://steelequivalents.com/ru/материалы/din-en/qste-380-tm.md tr: https://steelequivalents.com/tr/malzemeler/din-en/qste-380-tm.md zh: https://steelequivalents.com/zh/材料/din-en/qste-380-tm.md ja: https://steelequivalents.com/ja/材料/din-en/qste-380-tm.md ar: https://steelequivalents.com/ar/المواد/din-en/qste-380-tm.md ko: https://steelequivalents.com/ko/재료/din-en/qste-380-tm.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/qste-380-tm.md hi: https://steelequivalents.com/hi/सामग्री/din-en/qste-380-tm.md content_hash: sha256:c39cbe264cfc7c1fa45c335f23b6f441a4a3e96641233154f74730d1fb767e0c 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/din-en/qste-380-tm > Canonical URL: https://steelequivalents.com/materials/din-en/qste-380-tm > 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. DIN / EN · Europe · 2 designations # QStE 380 TM S380MC is a material in the category [Fine-grain steels for cold forming](/categories/fine-grain-steels-for-cold-forming "Fine-grain steels for cold forming"), held under material number 1.0978. Its recorded composition includes C ≤ 0.12%, Si ≤ 0.5%, Ti ≤ 0.22%, V ≤ 0.2% and Mn ≤ 1.5%. We list one designation recorded for this grade, in the standard DIN / EN. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.0978**](/materials/material-no/1.0978 "Material no.: 1.0978") - [*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* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=58dd45c0-afd7-41d1-b7cc-828624dfe761&designation=68c8a6f7-dfe0-4e6b-9600-e960ca89c427 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/qste-380-tm.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN S380MC This grade’s own name](/materials/din-en/s380mc "DIN / EN S380MC") ## 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 2 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 · 2 - **QStE 380 TM This grade’s own name Withdrawn** - [S380MC This grade’s own name](/materials/din-en/s380mc "DIN / EN S380MC") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Mn Si Ti Iron — the balance, never listed by a standard — 97.3 % Mn — 1.5 % Si — 0.5 % Ti — 0.2 % Traces & impurities · 0.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.12 | | Si | ≤ 0.5 | | Mn | ≤ 1.5 | | P | 0.025 | | S | 0.02 | | V | ≤ 0.2 | | Al | ≥ 0.015 | | Ti | ≤ 0.22 | | Nb | ≤ 0.09 | Carbon Silicon Manganese Phosphorus Sulfur Vanadium Aluminium Titanium Niobium 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 | ≤0,12 | — | 0.120 | Max | | Al | ≥0,015 | 0.015 | — | Min | | Si | ≤0,50 | — | 0.500 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,02 | 0.020 | 0.020 | Exact | | Ti | ≤0,22 | — | 0.220 | Max | | V | ≤0,20 | — | 0.200 | Max | | Mn | ≤1,50 | — | 1.500 | Max | | Nb | ≤0,09 | — | 0.090 | 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, Mo. ## 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.0, 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. [S340NC 1.0975 Mn ≤1,50 · Si ≤0,50 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/s340nc "S340NC")[S355MC 1.0976 Mn ≤1,50 · Si ≤0,50 - ΔMn 0.00 - ΔSi 0.00 - 15 designations](/materials/din-en/s355mc "S355MC")[S315NC 1.0973 Mn ≤1,40 · Si ≤0,50 - ΔMn 0.05 - ΔSi 0.00 - 3 designations](/materials/din-en/s315nc "S315NC")[FeE355-TD 1.0977 Mn ≤1,60 · Si ≤0,50 - ΔMn 0.05 - ΔSi 0.00 - 4 designations](/materials/din-en/fee355-td "FeE355-TD")[S380NC 1.0979 Mn ≤1,60 · Si ≤0,50 - ΔMn 0.05 - ΔSi 0.00 - 4 designations](/materials/din-en/s380nc "S380NC")[S420MC 1.0980 Mn ≤1,60 · Si ≤0,50 - ΔMn 0.05 - ΔSi 0.00 - 11 designations](/materials/din-en/s420mc "S420MC") ## 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=58dd45c0-afd7-41d1-b7cc-828624dfe761&designation=68c8a6f7-dfe0-4e6b-9600-e960ca89c427 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/qste-380-tm.pdf "Datasheet as PDF")