--- title: "1.0753 — Free cutting steels" description: "1.0753 is the material number of the grade also listed as 15 SPb 20. Category: Free cutting steels. Designations recorded for this grade: 2." canonical: https://steelequivalents.com/materials/material-no/1.0753 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.0753.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.0753.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.0753.md es: https://steelequivalents.com/es/materiales/número-de-material/1.0753.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.0753.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.0753.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.0753.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.0753.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.0753.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.0753.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.0753.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.0753.md zh: https://steelequivalents.com/zh/材料/材料编号/1.0753.md ja: https://steelequivalents.com/ja/材料/材料番号/1.0753.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.0753.md ko: https://steelequivalents.com/ko/재료/재료번호/1.0753.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.0753.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.0753.md content_hash: sha256:dc06f459cd292cb8e9ca568b438e3043b9dd766883458413d159d88856d69926 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/1.0753 > Canonical URL: https://steelequivalents.com/materials/material-no/1.0753 > 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 # 1.0753 1.0753 is the material number of the grade also listed as 15 SPb 20. It is a material in the category Free cutting steels. We list 2 designations recorded for this grade, in the standards DIN / EN. - ***Material no.* **1.0753**** - [*Category* **Free cutting steels · 49 grades**](/categories/free-cutting-steels "Category: Free cutting steels · 49 grades") - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=f4e137d0-fb56-4937-8d54-de8bdda4c391 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0753.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 15 SPb 20 This grade’s own name](/materials/din-en/15-spb-20 "DIN / EN 15 SPb 20") ## About Free cutting steels Free-cutting steels are steels formulated to machine readily and produce manageable chips during cutting. Their machinability makes them suitable for turned, drilled and threaded components produced in high volumes, including small precision parts and fasteners. 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 - [15 SPb 20 This grade’s own name](/materials/din-en/15-spb-20 "DIN / EN 15 SPb 20") - [15 SPb 22 This grade’s own name](/materials/din-en/15-spb-22 "DIN / EN 15 SPb 22") 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 Pb Iron — the balance, never listed by a standard — 98.4 % Mn — 0.7 % Si — 0.3 % Pb — 0.2 % Traces & impurities · 0.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.12–0.18 | | Si | 0.1–0.4 | | Mn | 0.5–0.9 | | P | 0.07 | | S | 0.18–0.26 | | Pb | 0.15–0.3 | Carbon Silicon Manganese Phosphorus Sulfur Lead 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 | 0,12-0,18 | 0.120 | 0.180 | Range | | Si | 0,10-0,40 | 0.100 | 0.400 | Range | | P | 0,07 | 0.070 | 0.070 | Exact | | S | 0,18-0,26 | 0.180 | 0.260 | Range | | Mn | 0,50-0,90 | 0.500 | 0.900 | Range | | Pb | 0,15-0,30 | 0.150 | 0.300 | 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 1.0, 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. [15 S 20 1.0723 Mn 0,50-0,90 · Si 0,10-0,40 - ΔMn 0.00 - ΔSi 0.00 - 5 designations](/materials/din-en/15-s-20 "15 S 20")[22 S 20 1.0724 Mn 0,50-0,90 · Si 0,10-0,40 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/22-s-20 "22 S 20")[60 S 20 1.0728 Mn 0,50-0,90 · Si 0,10-0,40 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/60-s-20 "60 S 20")[22 SPb 20 1.0754 Mn 0,50-0,90 · Si 0,10-0,40 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/22-spb-20 "22 SPb 20")[70 SPb 20 1.0759 Mn 0,50-0,90 · Si 0,10-0,40 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/70-spb-20 "70 SPb 20")[70 S 20 1.0729 Mn 0,50-0,70 · Si 0,15-0,25 - ΔMn 0.10 - ΔSi 0.05 - 1 designations](/materials/din-en/70-s-20 "70 S 20") ## 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=f4e137d0-fb56-4937-8d54-de8bdda4c391 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0753.pdf "Datasheet as PDF")