--- title: "1.9441 — Heat-resistant structural steels" description: "1.9441 is the material number of the grade also listed as A 516 Grade 70. It is a material in the category Heat-resistant structural steels." canonical: https://steelequivalents.com/materials/material-no/1.9441 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.9441.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.9441.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.9441.md es: https://steelequivalents.com/es/materiales/número-de-material/1.9441.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.9441.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.9441.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.9441.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.9441.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.9441.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.9441.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.9441.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.9441.md zh: https://steelequivalents.com/zh/材料/材料编号/1.9441.md ja: https://steelequivalents.com/ja/材料/材料番号/1.9441.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.9441.md ko: https://steelequivalents.com/ko/재료/재료번호/1.9441.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.9441.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.9441.md content_hash: sha256:bca083de9f9d572273f6ee01f1951db2ae6607c5e721ad6bc6797d5277debcb7 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/1.9441 > Canonical URL: https://steelequivalents.com/materials/material-no/1.9441 > 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 · 2 designations # 1.9441 1.9441 is the material number of the grade also listed as A 516 Grade 70. It is a material in the category Heat-resistant structural steels. We list 2 designations recorded for this grade, in the standards DIN / EN and UNS. - ***Material no.* **1.9441**** - [*Category* **Heat-resistant structural steels · 62 grades**](/categories/heat-resistant-structural-steels "Category: Heat-resistant structural steels · 62 grades") - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=be2cdc71-2610-4984-bc23-b6c11dee921b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.9441.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN A 516 Grade 70 This grade’s own name](/materials/din-en/a516-grade70 "DIN / EN A 516 Grade 70") - [UNS K02700 This grade’s own name · 9 grades on that route](/materials/uns/k02700 "UNS K02700") ## About Heat-resistant structural steels Heat-resistant structural steels are structural steels designed to retain useful strength and dimensional stability at elevated temperatures. They are used for load-bearing components in hot-service equipment where mechanical performance must be maintained during heating. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 2 designations · 2 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 - [A 516 Grade 70 This grade’s own name](/materials/din-en/a516-grade70 "DIN / EN A 516 Grade 70") UNS United States · 1 - [K02700 This grade’s own name](/materials/uns/k02700 "UNS K02700") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 5 elements on file · weight % What this alloy is Fe Mn Si C Iron — the balance, never listed by a standard — 98.4 % Mn — 1 % Si — 0.3 % C — 0.3 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.27 | | Si | 0.15–0.4 | | Mn | 0.85–1.2 | | P | 0.035 | | S | 0.035 | Carbon Silicon Manganese Phosphorus Sulfur 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 | ≤0,27 | — | 0.270 | Max | | Si | 0,15-0,40 | 0.150 | 0.400 | Range | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Mn | 0,85-1,20 | 0.850 | 1.200 | Range | 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 1.9, 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. [A 105 1.9443 Mn 0,60-1,05 · Si 0,10-0,35 - ΔMn 0.20 - ΔSi 0.05 - 2 designations](/materials/din-en/a105 "A 105") ## 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=be2cdc71-2610-4984-bc23-b6c11dee921b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.9441.pdf "Datasheet as PDF")