--- title: "GS-Ck 45 — Others" description: "GS-Ck 45: 32 equivalent designations across 19 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/gs-ck-45 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/gs-ck-45.md cs: https://steelequivalents.com/cs/materiály/din-en/gs-ck-45.md de: https://steelequivalents.com/de/werkstoffe/din-en/gs-ck-45.md es: https://steelequivalents.com/es/materiales/din-en/gs-ck-45.md fr: https://steelequivalents.com/fr/matériaux/din-en/gs-ck-45.md hu: https://steelequivalents.com/hu/anyagok/din-en/gs-ck-45.md it: https://steelequivalents.com/it/materiali/din-en/gs-ck-45.md nl: https://steelequivalents.com/nl/materialen/din-en/gs-ck-45.md pl: https://steelequivalents.com/pl/materiały/din-en/gs-ck-45.md pt: https://steelequivalents.com/pt/materiais/din-en/gs-ck-45.md ru: https://steelequivalents.com/ru/материалы/din-en/gs-ck-45.md tr: https://steelequivalents.com/tr/malzemeler/din-en/gs-ck-45.md zh: https://steelequivalents.com/zh/材料/din-en/gs-ck-45.md ja: https://steelequivalents.com/ja/材料/din-en/gs-ck-45.md ar: https://steelequivalents.com/ar/المواد/din-en/gs-ck-45.md ko: https://steelequivalents.com/ko/재료/din-en/gs-ck-45.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/gs-ck-45.md hi: https://steelequivalents.com/hi/सामग्री/din-en/gs-ck-45.md content_hash: sha256:85381415893722dbd6b25485517ae69e7631b2472998c4206c8a88b9bc9da3ea 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/gs-ck-45 > Canonical URL: https://steelequivalents.com/materials/din-en/gs-ck-45 > 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 · 32 designations # GS-Ck 45 GS-Ck 45 is a material in the category Others, held under material number 1.1191. We list 31 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, SS, ČSN, PN, STN, COPANT, MSZ, AS / NZS and SFS. Its recorded composition includes C 0.42–0.5%, Si ≤ 0.4%, P 0.035%, S 0.03% and Mn 0.5–0.8%. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.1191**](/materials/material-no/1.1191 "Material no.: 1.1191") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **32** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=ba2a1d92-6ec5-4656-b606-d2f19dd354b3&designation=1024ad5c-299b-4d42-8149-ae3ac5bf36aa "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/gs-ck-45.pdf "Datasheet as PDF") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 32 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. Superseded by the current name this withdrawn designation was replaced by — the same grade under its present designation, the one to order by today. DIN / EN Europe · 4 - [1.1191 Indicative](/materials/material-no/1.1191 "DIN / EN 1.1191") - [C45E Indicative](/materials/din-en/c45e "DIN / EN C45E")Formerly Ck45 - [Ck45 Indicative Withdrawn](/materials/snv/ck45 "DIN / EN Ck45")Superseded by[C45E](/materials/din-en/c45e "C45E") - **GS-Ck 45 This grade’s own name** UNS United States · 1 - [G10450 Indicative](/materials/uns/g10450 "UNS G10450") AISI / SAE United States · 2 - [1042 Indicative](/materials/aisi-sae/1042 "AISI / SAE 1042") - [1045 Indicative](/materials/aisi-sae/1045 "AISI / SAE 1045") BS United Kingdom · 3 - [060A47 Indicative](/materials/bs/060a47 "BS 060A47") - [080M46 Indicative](/materials/bs/080m46 "BS 080M46") - [CFS8 Indicative](/materials/bs/cfs8 "BS CFS8") AFNOR France · 4 - [XC42 Indicative](/materials/afnor/xc42 "AFNOR XC42") - [XC42H1 Indicative](/materials/afnor/xc42h1 "AFNOR XC42H1") - [XC45 Indicative](/materials/afnor/xc45 "AFNOR XC45") - [XC48H1 Indicative](/materials/afnor/xc48h1 "AFNOR XC48H1") UNE Spain · 3 - [C45K Indicative](/materials/une/c45k "UNE C45K") - [F.1140-C45k Indicative](/materials/une/f-1140-c45k "UNE F.1140-C45k") - [F1140 Indicative](/materials/une/f1140 "UNE F1140") ISO International · 1 - [C45E4 Indicative](/materials/iso/c45e4 "ISO C45E4") JIS Japan · 1 - [S45C Indicative](/materials/jis/s45c "JIS S45C") GB China · 3 - [45 Indicative](/materials/gb/45 "GB 45") - [45H Indicative](/materials/pn/45h "GB 45H") - [Ck45 Indicative](/materials/snv/ck45 "GB Ck45") GOST Russia / CIS · 1 - [45 Indicative](/materials/gb/45 "GOST 45") UNI Italy · 1 - [C45 Indicative](/materials/din-en/c45 "UNI C45") SS Sweden · 1 - [1672 Indicative](/materials/ss/1672 "SS 1672") ČSN Czechia · 1 - [12050 Indicative](/materials/csn/12050 "ČSN 12050") COPANT Latin America · 1 - [1045 Indicative](/materials/aisi-sae/1045 "COPANT 1045") STN Slovakia · 1 - [12 050 Indicative](/materials/csn/12050 "STN 12 050") PN Poland · 1 - [45 Indicative](/materials/gb/45 "PN 45") MSZ Hungary · 1 - [C 45 Indicative](/materials/din-en/c45 "MSZ C 45") AS / NZS Australia / New Zealand · 1 - [K1045 Indicative](/materials/as-nzs/k1045 "AS / NZS K1045") SFS Finland · 1 - [C45 Indicative](/materials/din-en/c45 "SFS C45") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 5 elements on file · weight % What this alloy is Fe Mn C Si Iron — the balance, never listed by a standard — 98.4 % Mn — 0.7 % C — 0.5 % Si — 0.4 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.42–0.5 | | Si | ≤ 0.4 | | Mn | 0.5–0.8 | | P | 0.035 | | S | 0.03 | Carbon Silicon Manganese Phosphorus Sulfur 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 | 0,42-0,50 | 0.420 | 0.500 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Mn | 0,50-0,80 | 0.500 | 0.800 | 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 1.1, 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. [C45EPb 1.1195 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/c45epb "C45EPb")[GC45E 1.1196 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/gc45e "GC45E")[Cm 45 Pb 1.1218 Mn 0,50-0,80 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/cm-45-pb "Cm 45 Pb")[L245NS 1.1020 Mn ≤1,35 · Si ≤0,40 - ΔMn 0.03 - ΔSi 0.00 - 1 designations](/materials/din-en/l245ns "L245NS")[L290NS 1.1021 Mn ≤1,35 · Si ≤0,40 - ΔMn 0.03 - ΔSi 0.00 - 1 designations](/materials/din-en/l290ns "L290NS")[L245QS 1.1025 Mn ≤1,35 · Si ≤0,40 - ΔMn 0.03 - ΔSi 0.00 - 1 designations](/materials/din-en/l245qs "L245QS") ## 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=ba2a1d92-6ec5-4656-b606-d2f19dd354b3&designation=1024ad5c-299b-4d42-8149-ae3ac5bf36aa "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/gs-ck-45.pdf "Datasheet as PDF")