--- title: "F.512 — Quenched and tempered steels" description: "F.512 in UNE: material number 1.1221, also listed as C60E. Category: Quenched and tempered steels. Designations recorded for this grade: 38." canonical: https://steelequivalents.com/materials/une/f-512 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/une/f-512.md cs: https://steelequivalents.com/cs/materiály/une/f-512.md de: https://steelequivalents.com/de/werkstoffe/une/f-512.md es: https://steelequivalents.com/es/materiales/une/f-512.md fr: https://steelequivalents.com/fr/matériaux/une/f-512.md hu: https://steelequivalents.com/hu/anyagok/une/f-512.md it: https://steelequivalents.com/it/materiali/une/f-512.md nl: https://steelequivalents.com/nl/materialen/une/f-512.md pl: https://steelequivalents.com/pl/materiały/une/f-512.md pt: https://steelequivalents.com/pt/materiais/une/f-512.md ru: https://steelequivalents.com/ru/материалы/une/f-512.md tr: https://steelequivalents.com/tr/malzemeler/une/f-512.md zh: https://steelequivalents.com/zh/材料/une/f-512.md ja: https://steelequivalents.com/ja/材料/une/f-512.md ar: https://steelequivalents.com/ar/المواد/une/f-512.md ko: https://steelequivalents.com/ko/재료/une/f-512.md pt-br: https://steelequivalents.com/pt-br/materiais/une/f-512.md hi: https://steelequivalents.com/hi/सामग्री/une/f-512.md content_hash: sha256:9300c30052aeeb9da0ea6c925f4fac3443b68f0ccfcdd9fe203d69b65b006c36 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/une/f-512 > Canonical URL: https://steelequivalents.com/materials/une/f-512 > 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. UNE · Spain · 38 designations # F.512 F.512 is a designation in UNE for the material held under material number 1.1221, also listed as C60E. It is a material in the category Quenched and tempered steels. We list 38 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, SS, ČSN, ABNT NBR, STN, PN, HRN, MKE and MSZ. - [*Material no.* **1.1221**](/materials/material-no/1.1221 "Material no.: 1.1221") - [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades") - *Designations* **38** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=52610101-9205-469f-8b7f-bf9de2b907eb&designation=a214430d-86df-465e-9808-7b4c22245ded "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/une/f-512.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN C60E This grade’s own name](/materials/din-en/c60e "DIN / EN C60E") - [UNS G10600 This grade’s own name · 12 grades on that route](/materials/uns/g10600 "UNS G10600") - [AISI / SAE 1060 This grade’s own name · 13 grades on that route](/materials/aisi-sae/1060 "AISI / SAE 1060") ## About Quenched and tempered steels Quenched and tempered steels are heat-treated steels designed to combine high strength with useful toughness and ductility. They are used for heavily loaded components such as shafts, gears, fasteners and structural machine parts where resistance to mechanical stress is required. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 38 designations · 19 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 - [1.1221 Indicative](/materials/material-no/1.1221 "DIN / EN 1.1221") - [C60E This grade’s own name](/materials/din-en/c60e "DIN / EN C60E") - [Ck 60 This grade’s own name Withdrawn](/materials/snv/ck60 "DIN / EN Ck 60") UNS United States · 3 - [G10550 Indicative](/materials/uns/g10550 "UNS G10550") - [G10600 This grade’s own name](/materials/uns/g10600 "UNS G10600") - [G10640 This grade’s own name](/materials/uns/g10640 "UNS G10640") AISI / SAE United States · 3 - [1055 Indicative](/materials/aisi-sae/1055 "AISI / SAE 1055") - [1060 This grade’s own name](/materials/aisi-sae/1060 "AISI / SAE 1060") - [1064 This grade’s own name](/materials/aisi-sae/1064 "AISI / SAE 1064") BS United Kingdom · 6 - [060A62 Indicative](/materials/bs/060a62 "BS 060A62") - [070M60 Indicative](/materials/bs/070m60 "BS 070M60") - [080A62 Indicative](/materials/bs/080a62 "BS 080A62") - [43D Indicative](/materials/bs/43d "BS 43D") - [CS60 Indicative](/materials/bs/cs60 "BS CS60") - [EN43D Indicative](/materials/bs/en43d "BS EN43D") AFNOR France · 3 - [2C60 Indicative](/materials/afnor/2c60 "AFNOR 2C60") - [C60E Indicative](/materials/din-en/c60e "AFNOR C60E") - [XC60 Indicative](/materials/afnor/xc60 "AFNOR XC60") UNE Spain · 3 - [C55k Indicative](/materials/une/c55k "UNE C55k") - [F.511 Indicative](/materials/une/f-511 "UNE F.511") - **F.512 Indicative** ISO International · 1 - [C60E4 Indicative](/materials/iso/c60e4 "ISO C60E4") JIS Japan · 1 - [S58C Indicative](/materials/jis/s58c "JIS S58C") GB China · 2 - [60 Indicative](/materials/bds/60 "GB 60") - [60Mn Indicative](/materials/gb/60mn "GB 60Mn") GOST Russia / CIS · 2 - [60 Indicative](/materials/bds/60 "GOST 60") - [60G Indicative](/materials/bds/60g "GOST 60G") UNI Italy · 1 - [C60 Indicative](/materials/din-en/c60 "UNI C60") SS Sweden · 2 - [1665 Indicative](/materials/ss/1665 "SS 1665") - [1678 Indicative](/materials/ss/1678 "SS 1678") ČSN Czechia · 1 - [12061 Indicative](/materials/csn/12061 "ČSN 12061") ABNT NBR Brazil · 1 - [1060 Indicative](/materials/aisi-sae/1060 "ABNT NBR 1060") STN Slovakia · 1 - [12 061 Indicative](/materials/csn/12061 "STN 12 061") PN Poland · 2 - [55 Indicative](/materials/bds/55 "PN 55") - [60 Indicative](/materials/bds/60 "PN 60") HRN Croatia · 1 - [Č.1731 Indicative](/materials/hrn/c-1731 "HRN Č.1731") MKE Türkiye · 1 - [Ç 1060 Indicative](/materials/mke/c-1060 "MKE Ç 1060") MSZ Hungary · 1 - [C 60 Indicative](/materials/din-en/c60 "MSZ C 60") 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 C Si Iron — the balance, never listed by a standard — 97.3 % Mn — 0.8 % C — 0.6 % Si — 0.4 % Traces & impurities · 1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.57–0.65 | | Si | ≤ 0.4 | | Mn | 0.6–0.9 | | P | 0.03 | | S | 0.035 | | Cr | ≤ 0.4 | | Mo | ≤ 0.1 | | Ni | ≤ 0.4 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel 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 | 0,57-0,65 | 0.570 | 0.650 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Cr | ≤0,40 | — | 0.400 | Max | | Mn | 0,60-0,90 | 0.600 | 0.900 | Range | | Ni | ≤0,40 | — | 0.400 | Max | | Mo | ≤0,10 | — | 0.100 | 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 This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## Physical & mechanical properties Density 7,85 g/cm³ Exact Transformation point Ac1 725 °C Exact Transformation point Ac3 750 °C Exact · Ac3(Acm) Transformation point Ar3 745 °C Exact · Ar3(Arcm) Transformation point Ar1 690 °C Exact Weldability not suitable for welding As published: is not used. Flake sensitivity slightly susceptible As published: weakly predisposed Temper brittleness not susceptible As published: not predisposed 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 14 conditions · 68 values By thickness**Normalized** source `steelnumber` | Thickness mm | Rm N/mm² | A% | |---|---|---| | ≤ 16 | 710 | 10 | | 16 – 100 | 670 | 11 | | 100 – 250 | 650 | 11 | | 250 – 500 | 630 | — | | 500 – 1000 | 620 | — | By thickness**Quenched and tempered** source `steelnumber` | Thickness mm | ReH N/mm² | Rm N/mm² | A% | |---|---|---|---| | 0.3 – 3 | — | 1150 – 1750 | — | | ≤ 8 | 580 | 850 | 11 | | 8 – 20 | 520 | 800 | 13 | | 20 – 50 | 450 | 750 | 14 | | 50 – 80 | 420 | 710 | 14 | By thickness**Cold drawn / hard** source `steelnumber` | Thickness mm | Rm N/mm² | A% | |---|---|---| | 5 – 10 | 800 – 1150 | 5 | | 10 – 16 | 780 – 1130 | 5 | | 16 – 40 | 730 – 1100 | 6 | By delivery state**no delivery state stated** source `splav` | Delivery state | Rm N/mm² | A5% | HB | |---|---|---|---| | Band annealed , GOST 2284-79 | 440 – 740 | 10 | — | | Band cold-worked , GOST 2284-79 | 740 – 1130 | — | — | | Rolled stock GOST 1050-88 | — | — | 255 | By thickness**Soft annealed** source `steelnumber` | Thickness mm | Rm N/mm² | A80% | |---|---|---| | 0.3 – 3 | 620 | 17 | By dimension**Normalizing** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | to 80 | 680 | 400 | 12 | 35 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | Steel | 700 | 510 | 17 | 60 | By dimension**Quenching 780 - 830°C, oil, Drawing 560°C** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | 30 | 920 | 590 | 19 | 50 | 240 | By delivery state**Treated to improve shearability** source `steelnumber` | Delivery state | HB | |---|---| | Treated to improve shearability | 255 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | HV | |---|---|---| | Soft annealed | 241 | 195 | By delivery state**As rolled and turned** source `steelnumber` | Delivery state | HB | |---|---| | As rolled and turned | 198 – 278 | By delivery state**Cold rolled** source `steelnumber` | Delivery state | HV | |---|---| | Cold rolled | 305 | By delivery state**Quenched and tempered** source `steelnumber` | Delivery state | HV | |---|---| | Quenched and tempered | 345 – 530 | At temperature**no delivery state stated** source `splav` | Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Specific heat capacity J/(kg·K) | |---|---|---|---|---|---| | 20 | 7.8 | 204 | — | — | — | | 100 | — | — | 11 | 68 | 483 | | 200 | — | 208 | 11.9 | 53 | 487 | | 300 | — | 189 | — | — | — | | 400 | — | 174 | 13.9 | 36 | 529 | | 500 | — | — | 14.6 | — | — | | 600 | — | — | — | — | 567 | 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. ## Heat treatment Supply condition - Annealing and Tempering and Normalizing Supply condition - Normalizing Test specimen size d=25 Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMzM3NQ__ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.1, 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. [1.1203 1.1203 Mn 0,60-0,90 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 32 designations](/materials/material-no/1.1203 "1.1203")[C50E 1.1206 Mn 0,60-0,90 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 33 designations](/materials/din-en/c50e "C50E")[C60R 1.1223 Mn 0,60-0,90 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 6 designations](/materials/din-en/c60r "C60R")[C30E 1.1178 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.10 - ΔSi 0.00 - 19 designations](/materials/din-en/c30e "C30E")[C30R 1.1179 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.10 - ΔSi 0.00 - 11 designations](/materials/din-en/c30r "C30R")[C35 1.1180 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.10 - ΔSi 0.00 - 17 designations](/materials/din-en/c35 "C35") ## 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=52610101-9205-469f-8b7f-bf9de2b907eb&designation=a214430d-86df-465e-9808-7b4c22245ded "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/une/f-512.pdf "Datasheet as PDF")