--- title: "C86D — Spring steels" description: "C86D: 14 equivalent designations across 9 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/c86d language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/c86d.md cs: https://steelequivalents.com/cs/materiály/din-en/c86d.md de: https://steelequivalents.com/de/werkstoffe/din-en/c86d.md es: https://steelequivalents.com/es/materiales/din-en/c86d.md fr: https://steelequivalents.com/fr/matériaux/din-en/c86d.md hu: https://steelequivalents.com/hu/anyagok/din-en/c86d.md it: https://steelequivalents.com/it/materiali/din-en/c86d.md nl: https://steelequivalents.com/nl/materialen/din-en/c86d.md pl: https://steelequivalents.com/pl/materiały/din-en/c86d.md pt: https://steelequivalents.com/pt/materiais/din-en/c86d.md ru: https://steelequivalents.com/ru/материалы/din-en/c86d.md tr: https://steelequivalents.com/tr/malzemeler/din-en/c86d.md zh: https://steelequivalents.com/zh/材料/din-en/c86d.md ja: https://steelequivalents.com/ja/材料/din-en/c86d.md ar: https://steelequivalents.com/ar/المواد/din-en/c86d.md ko: https://steelequivalents.com/ko/재료/din-en/c86d.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/c86d.md hi: https://steelequivalents.com/hi/सामग्री/din-en/c86d.md content_hash: sha256:260bbd45955c889c44aef0babb90682dc282315a849fd1f00f7eed06c097f269 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/din-en/c86d > Canonical URL: https://steelequivalents.com/materials/din-en/c86d > 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. DIN / EN · Europe · 14 designations # C86D C86D is a material in the category [Spring steels](/categories/spring-steels "Spring steels"), held under material number 1.0616. We list 13 designations recorded for this grade, in the standards UNS, AISI / SAE, BS, JIS, GB, GOST, ABNT NBR and COPANT. Its recorded composition includes C 0.83–0.88%, Si 0.1–0.3%, Mn 0.5–0.8%, Ni ≤ 0.2% and Cu ≤ 0.25%. Recorded mechanical properties include Rm 740–1180 N/mm², Re 980 N/mm², A5 8–10%, HB 269–302 and Z 30%; these figures vary with the delivery condition and dimension. Its recorded density is 7.85 g/cm³. Further recorded physical values: E 191 GPa. Recorded transformation points: Ac1 720 °C, Ac3 730 °C and Ar1 700 °C. It is recorded as not intended for welding. - [*Material no.* **1.0616**](/materials/material-no/1.0616 "Material no.: 1.0616") - [*Category* **Spring steels · 52 grades**](/categories/spring-steels "Category: Spring steels · 52 grades") - *Designations* **14** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=af342029-c62a-42d0-9bff-d964b6ed1582&designation=6844a99b-2bcd-4ce8-b756-a8257d481ad3 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/c86d.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS G10800 This grade’s own name · 3 grades on that route](/materials/uns/g10800 "UNS G10800") - [AISI / SAE 1080 This grade’s own name · 6 grades on that route](/materials/aisi-sae/1080 "AISI / SAE 1080") ## About Spring steels Spring steels are alloy steels designed to store and release elastic energy repeatedly without permanent deformation. They are characterised by a combination of strength, hardness and resilience, making them suitable for springs, clips, washers and other components subjected to repeated flexing or shock. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 14 designations · 9 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 - **C86D This grade’s own name** UNS United States · 2 - [G10800 This grade’s own name](/materials/uns/g10800 "UNS G10800") - [G10860 This grade’s own name](/materials/uns/g10860 "UNS G10860") AISI / SAE United States · 4 - [1080 This grade’s own name](/materials/aisi-sae/1080 "AISI / SAE 1080") - [1085 Indicative](/materials/aisi-sae/1085 "AISI / SAE 1085") - [1086 This grade’s own name](/materials/aisi-sae/1086 "AISI / SAE 1086") - [1095 Indicative](/materials/aisi-sae/1095 "AISI / SAE 1095") BS United Kingdom · 2 - [080A83 Indicative](/materials/bs/080a83 "BS 080A83") - [CS80 Indicative](/materials/bs/cs80 "BS CS80") JIS Japan · 1 - [SUP4 Indicative](/materials/jis/sup4 "JIS SUP4") GB China · 1 - [85 Indicative](/materials/pn/85 "GB 85") GOST Russia / CIS · 1 - [85 Indicative](/materials/pn/85 "GOST 85") ABNT NBR Brazil · 1 - [1080 Indicative](/materials/aisi-sae/1080 "ABNT NBR 1080") COPANT Latin America · 1 - [1080 Indicative](/materials/aisi-sae/1080 "COPANT 1080") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 10 elements on file · weight % What this alloy is Fe C Mn Cu Iron — the balance, never listed by a standard — 97.6 % C — 0.9 % Mn — 0.7 % Cu — 0.3 % Traces & impurities · 0.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.83–0.88 | | Si | 0.1–0.3 | | Mn | 0.5–0.8 | | P | 0.03 | | S | 0.03 | | Cr | ≤ 0.15 | | Mo | ≤ 0.05 | | Ni | ≤ 0.2 | | Cu | ≤ 0.25 | | Al | ≤ 0.01 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Copper 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 | 0,83-0,88 | 0.830 | 0.880 | Range | | Al | ≤0,01 | — | 0.010 | Max | | Si | 0,10-0,30 | 0.100 | 0.300 | Range | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | ≤0,15 | — | 0.150 | Max | | Mn | 0,50-0,80 | 0.500 | 0.800 | Range | | Ni | ≤0,20 | — | 0.200 | Max | | Cu | ≤0,25 | — | 0.250 | Max | | Mo | ≤0,05 | — | 0.050 | 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 720 °C Exact Transformation point Ac3 730 °C Exact · Ac3(Acm) Transformation point Ar1 700 °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 3 conditions · 10 values By delivery state**no delivery state stated** source `splav` | Delivery state | Rm N/mm² | A5% | HB | |---|---|---|---| | Band annealed , GOST 2283-79 | 740 | 10 | — | | Band cold-worked , GOST 2283-79 | 740 – 1180 | — | — | | (without heat treatment) , Rolled stock GOST 14959-79 | — | — | 302 | | (heat treatment) , Rolled stock GOST 14959-79 | — | — | 269 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | Rolled stock, GOST 14959-79 | 1130 | 980 | 8 | 30 | At temperature**no delivery state stated** source `splav` | Temperature °C | Elastic modulus GPa | |---|---| | 20 | 191 | 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 / 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. [C76D 1.0614 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 8 designations](/materials/din-en/c76d "C76D")[C75 1.0605 Mn 0,60-0,80 · Si 0,15-0,35 - ΔMn 0.05 - ΔSi 0.05 - 14 designations](/materials/din-en/c75 "C75")[C67 1.0603 Mn 0,60-0,90 · Si 0,15-0,35 - ΔMn 0.10 - ΔSi 0.05 - 15 designations](/materials/din-en/c67 "C67") ## 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=af342029-c62a-42d0-9bff-d964b6ed1582&designation=6844a99b-2bcd-4ce8-b756-a8257d481ad3 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/c86d.pdf "Datasheet as PDF")