--- title: "1.0958 — High-strength multi-phase steels" description: "1.0958 is the material number of the grade also listed as HDT950C. Category: High-strength multi-phase steels. Designations recorded for this grade: 1." canonical: https://steelequivalents.com/materials/material-no/1.0958 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.0958.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.0958.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.0958.md es: https://steelequivalents.com/es/materiales/número-de-material/1.0958.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.0958.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.0958.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.0958.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.0958.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.0958.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.0958.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.0958.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.0958.md zh: https://steelequivalents.com/zh/材料/材料编号/1.0958.md ja: https://steelequivalents.com/ja/材料/材料番号/1.0958.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.0958.md ko: https://steelequivalents.com/ko/재료/재료번호/1.0958.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.0958.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.0958.md content_hash: sha256:a4f2268020214491af80443b6a38f984968456ef1c5e70973020fd424b5f4e65 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/1.0958 > Canonical URL: https://steelequivalents.com/materials/material-no/1.0958 > 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 · 1 designation # 1.0958 1.0958 is the material number of the grade also listed as HDT950C. It is a material in the category High-strength multi-phase steels. We list 1 designations recorded for this grade, in the standards DIN / EN. - ***Material no.* **1.0958**** - [*Category* **High-strength multi-phase steels · 5 grades**](/categories/high-strength-multi-phase-steels "Category: High-strength multi-phase steels · 5 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=c3110b0f-f0eb-485e-90de-2b246a6ca99d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0958.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN HDT950C This grade’s own name](/materials/din-en/hdt950c "DIN / EN HDT950C") ## 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 1 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 · 1 - [HDT950C This grade’s own name](/materials/din-en/hdt950c "DIN / EN HDT950C") 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 Al Si Iron — the balance, never listed by a standard — 94.5 % Mn — 2.2 % Al — 2 % Si — 0.8 % Traces & impurities · 0.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.23 | | Si | ≤ 0.8 | | Mn | ≤ 2.2 | | P | 0.08 — Unusual | | S | 0.015 | | V | ≤ 0.2 | | Al | ≤ 2 | | 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 | ≤0,23 | — | 0.230 | Max | | Al | ≤2,00 | — | 2.000 | Max | | Si | ≤0,80 | — | 0.800 | Max | | P | 0,08 | 0.080 | 0.080 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | V | ≤0,20 | — | 0.200 | Max | | Mn | ≤2,20 | — | 2.200 | Max | - (Cr+Mo)≤1,20; (Nb+Ti)≤0,15 - (Cr+Mo)≤1,20; (Nb+Ti)≤0,15 - (Cr+Mo)≤1,20; (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 / Al 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. [HDT750C 1.0956 Mn ≤2,20 · Al ≤2,00 - ΔMn 0.00 - ΔAl 0.00 - 1 designations](/materials/din-en/hdt750c "HDT750C")[HDT780C 1.0957 Mn ≤2,20 · Al ≤2,00 - ΔMn 0.00 - ΔAl 0.00 - 1 designations](/materials/din-en/hdt780c "HDT780C")[HDT560F 1.0959 Mn ≤1,80 · Al ≥0,015 - ΔMn 0.20 - ΔAl 0.99 - 2 designations](/materials/din-en/hdt560f "HDT560F")[1.0961 1.0961 Mn ≤1,20 · Al ≥0,015 - ΔMn 0.50 - ΔAl 0.99 - 39 designations](/materials/material-no/1.0961 "1.0961") ## 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=c3110b0f-f0eb-485e-90de-2b246a6ca99d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0958.pdf "Datasheet as PDF")