--- title: "20YuCh — Cold extrusion steels" description: "20YuCh in GOST: material number 1.1152, also listed as C20E2C. Category: Cold extrusion steels. Designations recorded for this grade: 41." canonical: https://steelequivalents.com/materials/gost/20yuch language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/20yuch.md cs: https://steelequivalents.com/cs/materiály/gost/20yuch.md de: https://steelequivalents.com/de/werkstoffe/gost/20yuch.md es: https://steelequivalents.com/es/materiales/gost/20yuch.md fr: https://steelequivalents.com/fr/matériaux/gost/20yuch.md hu: https://steelequivalents.com/hu/anyagok/gost/20yuch.md it: https://steelequivalents.com/it/materiali/gost/20yuch.md nl: https://steelequivalents.com/nl/materialen/gost/20yuch.md pl: https://steelequivalents.com/pl/materiały/gost/20yuch.md pt: https://steelequivalents.com/pt/materiais/gost/20yuch.md ru: https://steelequivalents.com/ru/материалы/gost/20yuch.md tr: https://steelequivalents.com/tr/malzemeler/gost/20yuch.md zh: https://steelequivalents.com/zh/材料/gost/20yuch.md ja: https://steelequivalents.com/ja/材料/gost/20yuch.md ar: https://steelequivalents.com/ar/المواد/gost/20yuch.md ko: https://steelequivalents.com/ko/재료/gost/20yuch.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/20yuch.md hi: https://steelequivalents.com/hi/सामग्री/gost/20yuch.md content_hash: sha256:09f3664a5b4eeb61af2420e57b15efa7ea67cc42faa3146f7efc8b0dd66478fb 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/gost/20yuch > Canonical URL: https://steelequivalents.com/materials/gost/20yuch > 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. GOST · Russia / CIS · 41 designations # 20YuCh 20YuCh is a designation in GOST for the material held under material number 1.1152, also listed as C20E2C. It is a material in the category Cold extrusion steels. We list 41 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, JIS and GOST. - [*Material no.* **1.1152**](/materials/material-no/1.1152 "Material no.: 1.1152") - [*Category* **Cold extrusion steels · 156 grades**](/categories/cold-extrusion-steels "Category: Cold extrusion steels · 156 grades") - *Designations* **41** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=09e90a39-f403-48e4-bd71-46599752fe2b&designation=c91b913a-5ae5-482f-b81e-2fb1340df737 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/20yuch.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN C20E2C This grade’s own name · 3 grades on that route](/materials/din-en/c20e2c "DIN / EN C20E2C") - [UNS G10230 This grade’s own name · 3 grades on that route](/materials/uns/g10230 "UNS G10230") - [AISI / SAE 1023 This grade’s own name · 3 grades on that route](/materials/aisi-sae/1023 "AISI / SAE 1023") ## About Cold extrusion steels Cold extrusion steels are engineering materials designed to be shaped into components by cold forming and extrusion. They combine the ductility needed for substantial plastic deformation with the strength and toughness required in cold-formed fasteners, automotive parts and other precision components. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 41 designations · 5 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 - [20kp Indicative](/materials/gost/20kp "DIN / EN 20kp") - [C20E2C This grade’s own name](/materials/din-en/c20e2c "DIN / EN C20E2C") - [Cq 22 This grade’s own name Withdrawn](/materials/din-en/cq-22 "DIN / EN Cq 22") UNS United States · 1 - [G10230 This grade’s own name](/materials/uns/g10230 "UNS G10230") AISI / SAE United States · 1 - [1023 This grade’s own name](/materials/aisi-sae/1023 "AISI / SAE 1023") JIS Japan · 1 - [S22C Indicative](/materials/jis/s22c "JIS S22C") GOST Russia / CIS · 35 - [20 Indicative](/materials/bds/20 "GOST 20") - [20-PV Indicative](/materials/gost/20-pv "GOST 20-PV") - [20A Indicative](/materials/gost/20a "GOST 20A") - [20DKHL Indicative](/materials/gost/20dkhl "GOST 20DKHL") - [20F Indicative](/materials/gost/20f "GOST 20F") - [20FA Indicative](/materials/gost/20fa "GOST 20FA") - [20FL Indicative](/materials/gost/20fl "GOST 20FL") - [20FTL Indicative](/materials/gost/20ftl "GOST 20FTL") - [20FYu Indicative](/materials/gost/20fyu "GOST 20FYu") - [20GNMFL Indicative](/materials/gost/20gnmfl "GOST 20GNMFL") - [20GNMYuL Indicative](/materials/gost/20gnmyul "GOST 20GNMYuL") - [20GS Indicative](/materials/gost/20gs "GOST 20GS") - [20KHF Indicative](/materials/gost/20khf "GOST 20KHF") - [20KhFA Indicative](/materials/gost/20khfa "GOST 20KhFA") - [20KHGNR Indicative](/materials/gost/20khgnr "GOST 20KHGNR") - [20KHGNTR Indicative](/materials/gost/20khgntr "GOST 20KHGNTR") - [20KHGR Indicative](/materials/gost/20khgr "GOST 20KHGR") - [20KHGSFL Indicative](/materials/gost/20khgsfl "GOST 20KHGSFL") - [20KHGSNDML Indicative](/materials/gost/20khgsndml "GOST 20KHGSNDML") - [20KHGSА Indicative](/materials/gost/20khgsa "GOST 20KHGSА") - [20KhMFBR Indicative](/materials/gost/20khmfbr "GOST 20KhMFBR") - [20KHML Indicative](/materials/gost/20khml "GOST 20KHML") - [20KHN Indicative](/materials/gost/20khn "GOST 20KHN") - [20KHNR Indicative](/materials/gost/20khnr "GOST 20KHNR") - [20kp Indicative](/materials/gost/20kp "GOST 20kp") - [20ps Indicative](/materials/gost/20ps "GOST 20ps") - [20YuA Indicative](/materials/gost/20yua "GOST 20YuA") - **20YuCh Indicative** - [20YuChA Indicative](/materials/gost/20yucha "GOST 20YuChA") - [PA-ZhKh20KB Indicative](/materials/gost/pa-zhkh20kb "GOST PA-ZhKh20KB") - [SHKH20SG Indicative](/materials/gost/shkh20sg "GOST SHKH20SG") - [Sv-20GSTYuA Indicative](/materials/gost/sv-20gstyua "GOST Sv-20GSTYuA") - [АS20KHGNM Indicative](/materials/gost/as20khgnm "GOST АS20KHGNM") - [АTS20KHGNM Indicative](/materials/gost/ats20khgnm "GOST АTS20KHGNM") - [Х20КБ Indicative](/materials/gost/kh20kb "GOST Х20КБ") 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 Cu Iron — the balance, never listed by a standard — 98.8 % Mn — 0.4 % Si — 0.3 % Cu — 0.3 % Traces & impurities · 0.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.18–0.22 | | Si | ≤ 0.3 | | Mn | 0.3–0.6 | | P | 0.025 | | S | 0.025 | | Cu | ≤ 0.25 | Carbon Silicon Manganese Phosphorus Sulfur Copper 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 | 0,18-0,22 | 0.180 | 0.220 | Range | | Si | ≤0,30 | — | 0.300 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,025 | 0.025 | 0.025 | Exact | | Mn | 0,30-0,60 | 0.300 | 0.600 | Range | | Cu | ≤0,25 | — | 0.250 | 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 Transformation point Ac1 810 °C Exact Transformation point Ac3 950 °C Exact · Ac3(Acm) Transformation point Ar3 800 °C Exact · Ar3(Arcm) Transformation point Ar1 690 °C 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 3 conditions · 25 values By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Normalizing 1100°C,Drawing 650°C, 6h | 1076 | 958 | 13.3 | 46.6 | 150 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---| | Bar | 900 | 15 | 55 | 400 | At temperature**no delivery state stated** source `splav` | Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal conductivity W/(m·K) | |---|---|---|---| | 20 | 7.9 | 217 | — | | 100 | — | 211 | 41 | | 200 | — | 205 | 46.1 | | 300 | — | 196 | 48.2 | | 400 | — | 188 | 50.2 | | 500 | — | 180 | 52.8 | | 600 | — | 167 | 54.4 | | 700 | — | 152 | 56.1 | 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 1.1, 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. [C15E2C 1.1132 Mn 0,30-0,60 · Si ≤0,30 - ΔMn 0.00 - ΔSi 0.00 - 31 designations](/materials/din-en/c15e2c "C15E2C")[C35EC 1.1172 Mn 0,50-0,80 · Si ≤0,30 - ΔMn 0.20 - ΔSi 0.00 - 20 designations](/materials/din-en/c35ec "C35EC")[C45EC 1.1192 Mn 0,50-0,80 · Si ≤0,30 - ΔMn 0.20 - ΔSi 0.00 - 14 designations](/materials/din-en/c45ec "C45EC") ## 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=09e90a39-f403-48e4-bd71-46599752fe2b&designation=c91b913a-5ae5-482f-b81e-2fb1340df737 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/20yuch.pdf "Datasheet as PDF")