--- title: "CF9SMnPb28 — Free cutting steels" description: "CF9SMnPb28 in UNI: material number 1.0718, also listed as 11 SMnPb 30. Category: Free cutting steels. Designations recorded for this grade: 21." canonical: https://steelequivalents.com/materials/uni/cf9smnpb28 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/uni/cf9smnpb28.md cs: https://steelequivalents.com/cs/materiály/uni/cf9smnpb28.md de: https://steelequivalents.com/de/werkstoffe/uni/cf9smnpb28.md es: https://steelequivalents.com/es/materiales/uni/cf9smnpb28.md fr: https://steelequivalents.com/fr/matériaux/uni/cf9smnpb28.md hu: https://steelequivalents.com/hu/anyagok/uni/cf9smnpb28.md it: https://steelequivalents.com/it/materiali/uni/cf9smnpb28.md nl: https://steelequivalents.com/nl/materialen/uni/cf9smnpb28.md pl: https://steelequivalents.com/pl/materiały/uni/cf9smnpb28.md pt: https://steelequivalents.com/pt/materiais/uni/cf9smnpb28.md ru: https://steelequivalents.com/ru/материалы/uni/cf9smnpb28.md tr: https://steelequivalents.com/tr/malzemeler/uni/cf9smnpb28.md zh: https://steelequivalents.com/zh/材料/uni/cf9smnpb28.md ja: https://steelequivalents.com/ja/材料/uni/cf9smnpb28.md ar: https://steelequivalents.com/ar/المواد/uni/cf9smnpb28.md ko: https://steelequivalents.com/ko/재료/uni/cf9smnpb28.md pt-br: https://steelequivalents.com/pt-br/materiais/uni/cf9smnpb28.md hi: https://steelequivalents.com/hi/सामग्री/uni/cf9smnpb28.md content_hash: sha256:724ee4b644ca6d6d00b8e49199a55595e3135a884c710172b0bea294d2284f8a generated: 2026-09-22 --- > **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/uni/cf9smnpb28 > Canonical URL: https://steelequivalents.com/materials/uni/cf9smnpb28 > 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. UNI · Italy · 21 designations # CF9SMnPb28 CF9SMnPb28 is a designation in UNI for the material held under material number 1.0718, also listed as 11 SMnPb 30. It is a material in the category Free cutting steels. We list 21 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, AFNOR, UNE, ISO, JIS, GB, UNI, SS, PN and KS. - [*Material no.* **1.0718**](/materials/material-no/1.0718 "Material no.: 1.0718") - [*Category* **Free cutting steels · 49 grades**](/categories/free-cutting-steels "Category: Free cutting steels · 49 grades") - *Designations* **21** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=5ad5584e-c630-4f21-b014-1b42025f2f7e&designation=5291db32-dab0-4d53-abd6-54e6b047ad7b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uni/cf9smnpb28.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 11 SMnPb 30 This grade’s own name](/materials/din-en/11-smnpb-30 "DIN / EN 11 SMnPb 30") - [UNS G12134 This grade’s own name](/materials/uns/g12134 "UNS G12134") - [AISI / SAE 12L13 This grade’s own name](/materials/aisi-sae/12l13 "AISI / SAE 12L13") - [JIS 11SMnPb28 This grade’s own name](/materials/jis/11smnpb28 "JIS 11SMnPb28") - [KS SUM22L This grade’s own name](/materials/ks/sum22l "KS SUM22L") ## 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 21 designations · 12 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 - [1.0718 Indicative](/materials/material-no/1.0718 "DIN / EN 1.0718") - [11 SMnPb 30 This grade’s own name](/materials/din-en/11-smnpb-30 "DIN / EN 11 SMnPb 30") - [9 SMnPb 28 This grade’s own name](/materials/din-en/9-smnpb-28 "DIN / EN 9 SMnPb 28") UNS United States · 2 - [G12134 This grade’s own name](/materials/uns/g12134 "UNS G12134") - [G12144 This grade’s own name](/materials/uns/g12144 "UNS G12144") AISI / SAE United States · 2 - [12L13 This grade’s own name](/materials/aisi-sae/12l13 "AISI / SAE 12L13") - [12L14 This grade’s own name](/materials/aisi-sae/12l14 "AISI / SAE 12L14") AFNOR France · 1 - [S250Pb Indicative](/materials/afnor/s250pb "AFNOR S250Pb") UNE Spain · 3 - [11SMnPb28 Indicative](/materials/jis/11smnpb28 "UNE 11SMnPb28") - [F.2112 Indicative](/materials/une/f-2112 "UNE F.2112") - [F.2112-11SMnPb28 Indicative](/materials/une/f-2112-11smnpb28 "UNE F.2112-11SMnPb28") ISO International · 1 - [11MnPb28 Indicative](/materials/iso/11mnpb28 "ISO 11MnPb28") JIS Japan · 3 - [11SMnPb28 This grade’s own name](/materials/jis/11smnpb28 "JIS 11SMnPb28") - [SUM22L Indicative](/materials/ks/sum22l "JIS SUM22L") - [SUM24L Indicative](/materials/ks/sum24l "JIS SUM24L") GB China · 1 - [Y15Pb Indicative](/materials/gb/y15pb "GB Y15Pb") UNI Italy · 1 - **CF9SMnPb28 Indicative** SS Sweden · 1 - [1914 Indicative](/materials/ss/1914 "SS 1914") PN Poland · 1 - [A10X Indicative](/materials/pn/a10x "PN A10X") KS South Korea · 2 - [SUM22L This grade’s own name](/materials/ks/sum22l "KS SUM22L") - [SUM24L This grade’s own name](/materials/ks/sum24l "KS SUM24L") 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 S Pb Iron — the balance, never listed by a standard — 98 % Mn — 1.1 % S — 0.3 % Pb — 0.3 % Traces & impurities · 0.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.14 | | Si | ≤ 0.05 | | Mn | 0.9–1.3 | | P | 0.11 | | S | 0.27–0.33 | | Pb | 0.2–0.35 | 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 | ≤0,14 | — | 0.140 | Max | | Si | ≤0,05 | — | 0.050 | Max | | P | 0,11 | 0.110 | 0.110 | Exact | | S | 0,27-0,33 | 0.270 | 0.330 | Range | | Mn | 0,90-1,30 | 0.900 | 1.300 | Range | | Pb | 0,20-0,35 | 0.200 | 0.350 | 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. ## Properties by condition 2 conditions · 11 values By thickness**Cold drawn / hard** source `steelnumber` | Thickness mm | Rm N/mm² | A% | |---|---|---| | 5 – 10 | 510 – 810 | 6 | | 10 – 16 | 490 – 760 | 7 | | 16 – 40 | 460 – 710 | 8 | | 40 – 63 | 400 – 650 | 9 | | 63 – 100 | 360 – 630 | 9 | By delivery state**As rolled and turned** source `steelnumber` | Delivery state | HB | |---|---| | As rolled and turned | 107 – 169 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## 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 / Pb 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. [11 SMnPbTe 30 1.0719 Mn 0,90-1,30 · Pb 0,20-0,35 - ΔMn 0.00 - ΔPb 0.00 - 1 designations](/materials/din-en/11-smnpbte-30 "11 SMnPbTe 30")[11 SMnPbBiTe 30 1.0720 Mn 0,90-1,30 · Pb 0,20-0,35 - ΔMn 0.00 - ΔPb 0.00 - 1 designations](/materials/din-en/11-smnpbbite-30 "11 SMnPbBiTe 30")[1.0737 1.0737 Mn 1,00-1,50 · Pb 0,20-0,35 - ΔMn 0.15 - ΔPb 0.00 - 13 designations](/materials/material-no/1.0737 "1.0737")[11 SMnPbTe 37 1.0738 Mn 1,00-1,50 · Pb 0,20-0,35 - ΔMn 0.15 - ΔPb 0.00 - 1 designations](/materials/din-en/11-smnpbte-37 "11 SMnPbTe 37")[11 SMnPbBiTe 37 1.0739 Mn 1,00-1,50 · Pb 0,20-0,35 - ΔMn 0.15 - ΔPb 0.00 - 1 designations](/materials/din-en/11-smnpbbite-37 "11 SMnPbBiTe 37")[1.0722 1.0722 Mn 0,70-1,10 · Pb 0,20-0,35 - ΔMn 0.20 - ΔPb 0.00 - 9 designations](/materials/material-no/1.0722 "1.0722") ## 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=5ad5584e-c630-4f21-b014-1b42025f2f7e&designation=5291db32-dab0-4d53-abd6-54e6b047ad7b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uni/cf9smnpb28.pdf "Datasheet as PDF")