--- title: "S455MC — High-strength multi-phase steels" description: "S455MC in DIN / EN: material number 1.0959, also listed as HDT560F. It is a material in the category High-strength multi-phase steels." canonical: https://steelequivalents.com/materials/din-en/s455mc language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/s455mc.md cs: https://steelequivalents.com/cs/materiály/din-en/s455mc.md de: https://steelequivalents.com/de/werkstoffe/din-en/s455mc.md es: https://steelequivalents.com/es/materiales/din-en/s455mc.md fr: https://steelequivalents.com/fr/matériaux/din-en/s455mc.md hu: https://steelequivalents.com/hu/anyagok/din-en/s455mc.md it: https://steelequivalents.com/it/materiali/din-en/s455mc.md nl: https://steelequivalents.com/nl/materialen/din-en/s455mc.md pl: https://steelequivalents.com/pl/materiały/din-en/s455mc.md pt: https://steelequivalents.com/pt/materiais/din-en/s455mc.md ru: https://steelequivalents.com/ru/материалы/din-en/s455mc.md tr: https://steelequivalents.com/tr/malzemeler/din-en/s455mc.md zh: https://steelequivalents.com/zh/材料/din-en/s455mc.md ja: https://steelequivalents.com/ja/材料/din-en/s455mc.md ar: https://steelequivalents.com/ar/المواد/din-en/s455mc.md ko: https://steelequivalents.com/ko/재료/din-en/s455mc.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/s455mc.md hi: https://steelequivalents.com/hi/सामग्री/din-en/s455mc.md content_hash: sha256:abf63de33473029d90f66d61eb093a1885cf598de956ba7394f42ac20be2f8a1 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/s455mc > Canonical URL: https://steelequivalents.com/materials/din-en/s455mc > 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 # S455MC S455MC is a designation in DIN / EN for the material held under material number 1.0959, also listed as HDT560F. It is a material in the category High-strength multi-phase steels. We list 2 designations recorded for this grade, in the standards DIN / EN. - [*Material no.* **1.0959**](/materials/material-no/1.0959 "Material no.: 1.0959") - [*Category* **High-strength multi-phase steels · 5 grades**](/categories/high-strength-multi-phase-steels "Category: High-strength multi-phase steels · 5 grades") - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=263b8817-2445-4ffd-841a-8f701d6e7a0c&designation=cf7f90e1-7165-40b8-80ae-4192fee55132 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s455mc.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN HDT560F This grade’s own name](/materials/din-en/hdt560f "DIN / EN HDT560F") ## About High-strength multi-phase steels High-strength multi-phase steels are iron-based materials with multiple microstructural constituents designed to provide high strength with useful ductility. They are used for load-bearing and crash-relevant components where weight reduction, structural performance and energy absorption are important. 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 - [HDT560F This grade’s own name](/materials/din-en/hdt560f "DIN / EN HDT560F") - **S455MC This grade’s own name Withdrawn** Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Mn Si C Iron — the balance, never listed by a standard — 97.3 % Mn — 1.8 % Si — 0.5 % C — 0.2 % Traces & impurities · 0.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.18 | | Si | ≤ 0.5 | | Mn | ≤ 1.8 | | P | 0.025 | | S | 0.01 | | V | ≤ 0.15 | | Al | ≥ 0.015 | | B | ≤ 0.005 | Carbon Silicon Manganese Phosphorus Sulfur Vanadium Aluminium 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 | ≤0,18 | — | 0.180 | Max | | Al | ≥0,015 | 0.015 | — | Min | | Si | ≤0,50 | — | 0.500 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | V | ≤0,15 | — | 0.150 | Max | | Mn | ≤1,80 | — | 1.800 | Max | - (Cr+Mo)≤0,30; (Nb+Ti)≤0,15 - (Cr+Mo)≤0,30; (Nb+Ti)≤0,15 - (Cr+Mo)≤0,30; (Nb+Ti)≤0,15 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. [1.0961 1.0961 Mn ≤1,20 · Si ≤0,50 - ΔMn 0.30 - ΔSi 0.00 - 39 designations](/materials/material-no/1.0961 "1.0961")[HDT750C 1.0956 Mn ≤2,20 · Si ≤0,80 - ΔMn 0.20 - ΔSi 0.15 - 1 designations](/materials/din-en/hdt750c "HDT750C")[HDT780C 1.0957 Mn ≤2,20 · Si ≤0,80 - ΔMn 0.20 - ΔSi 0.15 - 1 designations](/materials/din-en/hdt780c "HDT780C")[HDT950C 1.0958 Mn ≤2,20 · Si ≤0,80 - ΔMn 0.20 - ΔSi 0.15 - 1 designations](/materials/din-en/hdt950c "HDT950C") ## 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=263b8817-2445-4ffd-841a-8f701d6e7a0c&designation=cf7f90e1-7165-40b8-80ae-4192fee55132 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s455mc.pdf "Datasheet as PDF")