--- title: "1.0448 — Phosphorus alloyed steels" description: "1.0448 is the material number of the grade also listed as H 300 P. Category: Phosphorus alloyed steels. Designations recorded for this grade: 3." canonical: https://steelequivalents.com/materials/material-no/1.0448 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.0448.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.0448.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.0448.md es: https://steelequivalents.com/es/materiales/número-de-material/1.0448.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.0448.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.0448.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.0448.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.0448.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.0448.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.0448.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.0448.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.0448.md zh: https://steelequivalents.com/zh/材料/材料编号/1.0448.md ja: https://steelequivalents.com/ja/材料/材料番号/1.0448.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.0448.md ko: https://steelequivalents.com/ko/재료/재료번호/1.0448.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.0448.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.0448.md content_hash: sha256:e1bad25b7f41fef9c1cfa1c7c419fcd1e78e413345721532e3a2c4e69863036e 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/1.0448 > Canonical URL: https://steelequivalents.com/materials/material-no/1.0448 > 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 # 1.0448 1.0448 is the material number of the grade also listed as H 300 P. It is a material in the category Phosphorus alloyed steels. We list 3 designations recorded for this grade, in the standards DIN / EN. - ***Material no.* **1.0448**** - [*Category* **Phosphorus alloyed steels · 4 grades**](/categories/phosphorus-alloyed-steels "Category: Phosphorus alloyed steels · 4 grades") - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=b1bc812d-50fc-424f-bcdd-55fdd6dd5822 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0448.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN H 300 P This grade’s own name](/materials/din-en/h-300-p "DIN / EN H 300 P") ## About Phosphorus alloyed steels Phosphorus-alloyed steels are steels in which phosphorus is used as a deliberate alloying element. They are characterised by phosphorus-assisted strength and machinability, and are used for components where these properties support efficient manufacturing and service performance. 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 - [H 300 P This grade’s own name](/materials/din-en/h-300-p "DIN / EN H 300 P") - [HC 300 P This grade’s own name](/materials/din-en/hc-300-p "DIN / EN HC 300 P") - [ZStE 300 P This grade’s own name](/materials/din-en/zste-300-p "DIN / EN ZStE 300 P") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 6 elements on file · weight % What this alloy is Fe Mn Si P Iron — the balance, never listed by a standard — 98.5 % Mn — 0.7 % Si — 0.5 % P — 0.1 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.1 | | Si | ≤ 0.5 | | Mn | ≤ 0.7 | | P | 0.12 — Unusual | | S | 0.025 | | Al | ≥ 0.015 | Carbon Silicon Manganese Phosphorus Sulfur Aluminium 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 | ≤0,10 | — | 0.100 | Max | | Al | ≥0,015 | 0.015 | — | Min | | Si | ≤0,50 | — | 0.500 | Max | | P | 0,12 | 0.120 | 0.120 | Exact | | S | 0,025 | 0.025 | 0.025 | Exact | | Mn | ≤0,70 | — | 0.700 | 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. [H 220 P 1.0397 Mn ≤0,70 · Si ≤0,50 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/h-220-p "H 220 P")[H 260 P 1.0417 Mn ≤0,70 · Si ≤0,50 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/h-260-p "H 260 P")[HC 180 P 1.0342 Mn ≤0,60 · Si ≤0,40 - ΔMn 0.05 - ΔSi 0.05 - 1 designations](/materials/din-en/hc-180-p "HC 180 P") ## 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=b1bc812d-50fc-424f-bcdd-55fdd6dd5822 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0448.pdf "Datasheet as PDF")