--- title: "St 52-3 G — Unalloyed structural steels" description: "St 52-3 G: 101 equivalent designations across 21 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/st-52-3-g language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/st-52-3-g.md cs: https://steelequivalents.com/cs/materiály/din-en/st-52-3-g.md de: https://steelequivalents.com/de/werkstoffe/din-en/st-52-3-g.md es: https://steelequivalents.com/es/materiales/din-en/st-52-3-g.md fr: https://steelequivalents.com/fr/matériaux/din-en/st-52-3-g.md hu: https://steelequivalents.com/hu/anyagok/din-en/st-52-3-g.md it: https://steelequivalents.com/it/materiali/din-en/st-52-3-g.md nl: https://steelequivalents.com/nl/materialen/din-en/st-52-3-g.md pl: https://steelequivalents.com/pl/materiały/din-en/st-52-3-g.md pt: https://steelequivalents.com/pt/materiais/din-en/st-52-3-g.md ru: https://steelequivalents.com/ru/материалы/din-en/st-52-3-g.md tr: https://steelequivalents.com/tr/malzemeler/din-en/st-52-3-g.md zh: https://steelequivalents.com/zh/材料/din-en/st-52-3-g.md ja: https://steelequivalents.com/ja/材料/din-en/st-52-3-g.md ar: https://steelequivalents.com/ar/المواد/din-en/st-52-3-g.md ko: https://steelequivalents.com/ko/재료/din-en/st-52-3-g.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/st-52-3-g.md hi: https://steelequivalents.com/hi/सामग्री/din-en/st-52-3-g.md content_hash: sha256:a26d22db39595ddc30447b59c0ed25af087e2a898e04759289cf813b82547463 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/din-en/st-52-3-g > Canonical URL: https://steelequivalents.com/materials/din-en/st-52-3-g > 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 · 101 designations # St 52-3 G S325G is a material in the category [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels"), held under material number 1.0570. We list 100 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN, PN, SRPS, STN, MSZ, STAS, BDS, ÖNORM, NBN and KS. Its recorded composition includes C ≤ 0.2%, Si ≤ 0.55%, P 0.03%, S 0.025% and Mn ≤ 1.6%. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.0570**](/materials/material-no/1.0570 "Material no.: 1.0570") - [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades") - *Designations* **101** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=b6da6830-1771-449c-b8b4-f1efd91a9bec&designation=4c4421bf-01ff-4552-8f64-753cd58b7c6c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/st-52-3-g.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN S325G This grade’s own name](/materials/din-en/s325g "DIN / EN S325G") - [UNS K12037 This grade’s own name · 8 grades on that route](/materials/uns/k12037 "UNS K12037") ## About Unalloyed structural steels Unalloyed structural steels include all low-carbon steels in which the iron companions do not exceed specified minimum values. The yield strength, formability and weldability are the decisive factors for their use. They are soft, pliable, tough and stretchy, but cannot be hardened by heat treatment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 101 designations · 21 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 - [1.0570 Indicative](/materials/material-no/1.0570 "DIN / EN 1.0570") - [S325G This grade’s own name](/materials/din-en/s325g "DIN / EN S325G") - **St 52-3 G This grade’s own name Withdrawn**Superseded by S355J2G3+CR - [St52-3 Indicative Withdrawn](/materials/din-en/st52-3 "DIN / EN St52-3")Superseded by S355J2G3 UNS United States · 1 - [K12037 This grade’s own name](/materials/uns/k12037 "UNS K12037") AISI / SAE United States · 2 - [1024 Indicative](/materials/aisi-sae/1024 "AISI / SAE 1024") - [Gr.50type1-4 Indicative](/materials/aisi-sae/gr-50type1-4 "AISI / SAE Gr.50type1-4") BS United Kingdom · 15 - [1449-50/35HR Indicative](/materials/bs/1449-50-35hr "BS 1449-50/35HR") - [1449-50/35HS Indicative](/materials/bs/1449-50-35hs "BS 1449-50/35HS") - [4360 50 B Indicative](/materials/bs/4360-50b "BS 4360 50 B") - [4360-50C Indicative](/materials/bs/4360-50c "BS 4360-50C") - [4360-50D Indicative](/materials/bs/4360-50d "BS 4360-50D") - [50C Indicative](/materials/bs/50c "BS 50C") - [50D Indicative](/materials/bs/50d "BS 50D") - [CEW5 Indicative](/materials/bs/cew5 "BS CEW5") - [D1FF Indicative](/materials/bs/d1ff "BS D1FF") - [ERW5 Indicative](/materials/bs/erw5 "BS ERW5") - [Fe510 Indicative](/materials/bs/fe510 "BS Fe510") - [Fe510D1FF Indicative](/materials/bs/fe510d1ff "BS Fe510D1FF") - [S355J0 Indicative](/materials/uni/s355j0 "BS S355J0") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "BS S355J2G3") - [SAW5 Indicative](/materials/bs/saw5 "BS SAW5") AFNOR France · 5 - [E36-3 Indicative](/materials/afnor/e36-3 "AFNOR E36-3") - [E36-4 Indicative](/materials/afnor/e36-4 "AFNOR E36-4") - [S355J0 Indicative](/materials/uni/s355j0 "AFNOR S355J0") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "AFNOR S355J2G3") - [S355K2G3 Indicative](/materials/din-en/s355k2g3 "AFNOR S355K2G3") UNE Spain · 5 - [A510C Indicative](/materials/une/a510c "UNE A510C") - [AE355D Indicative](/materials/une/ae355d "UNE AE355D") - [Fe510D1FF Indicative](/materials/bs/fe510d1ff "UNE Fe510D1FF") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "UNE S355J2G3") - [S355J2G4 Indicative](/materials/din-en/s355j2g4 "UNE S355J2G4") JIS Japan · 14 - [SM490 Indicative](/materials/jis/sm490 "JIS SM490") - [SM490A Indicative](/materials/ks/sm490a "JIS SM490A") - [SM490B Indicative](/materials/ks/sm490b "JIS SM490B") - [SM490C Indicative](/materials/ks/sm490c "JIS SM490C") - [SM490YA Indicative](/materials/jis/sm490ya "JIS SM490YA") - [SM490YB Indicative](/materials/ks/sm490yb "JIS SM490YB") - [SM50A Indicative](/materials/jis/sm50a "JIS SM50A") - [SM520B Indicative](/materials/ks/sm520b "JIS SM520B") - [SM520C Indicative](/materials/jis/sm520c "JIS SM520C") - [SM53C Indicative](/materials/ks/sm53c "JIS SM53C") - [SS490C Indicative](/materials/jis/ss490c "JIS SS490C") - [STK490 Indicative](/materials/jis/stk490 "JIS STK490") - [STKM16C Indicative](/materials/jis/stkm16c "JIS STKM16C") - [STKR490 Indicative](/materials/jis/stkr490 "JIS STKR490") GB China · 6 - [16Mn Indicative](/materials/gb/16mn "GB 16Mn") - [16MnDR Indicative](/materials/gb/16mndr "GB 16MnDR") - [16Mng Indicative](/materials/gb/16mng "GB 16Mng") - [16MnL Indicative](/materials/gb/16mnl "GB 16MnL") - [16MnR Indicative](/materials/gb/16mnr "GB 16MnR") - [HP345 Indicative](/materials/gb/hp345 "GB HP345") GOST Russia / CIS · 7 - [17G1S Indicative](/materials/gost/17g1s "GOST 17G1S") - [17GS Indicative](/materials/bds/17gs "GOST 17GS") - [17Г1С Indicative](/materials/gost/17g1s "GOST 17Г1С") - [17ГС Indicative](/materials/bds/17gs "GOST 17ГС") - [35 Indicative](/materials/gb/35 "GOST 35") - [S345 Indicative](/materials/gost/s345 "GOST S345") - [С345 Indicative](/materials/gost/s345 "GOST С345") UNI Italy · 11 - [Fe510 Indicative](/materials/bs/fe510 "UNI Fe510") - [Fe510B Indicative](/materials/uni/fe510b "UNI Fe510B") - [Fe510C Indicative](/materials/uni/fe510c "UNI Fe510C") - [Fe510CFN Indicative](/materials/uni/fe510cfn "UNI Fe510CFN") - [Fe510D Indicative](/materials/uni/fe510d "UNI Fe510D") - [Fe52BFN Indicative](/materials/uni/fe52bfn "UNI Fe52BFN") - [Fe52CFN Indicative](/materials/uni/fe52cfn "UNI Fe52CFN") - [FeE420 Indicative](/materials/uni/fee420 "UNI FeE420") - [S355J0 Indicative](/materials/uni/s355j0 "UNI S355J0") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "UNI S355J2G3") - [S355JR Indicative](/materials/din-en/s355jr "UNI S355JR") SS Sweden · 6 - [2132 Indicative](/materials/ss/2132 "SS 2132") - [2133 Indicative](/materials/ss/2133 "SS 2133") - [2134 Indicative](/materials/ss/2134 "SS 2134") - [2135-01 Indicative](/materials/ss/2135-01 "SS 2135-01") - [2172 Indicative](/materials/ss/2172 "SS 2172") - [2174 Indicative](/materials/ss/2174 "SS 2174") ČSN Czechia · 4 - [11438 Indicative](/materials/csn/11438 "ČSN 11438") - [11483 Indicative](/materials/csn/11483 "ČSN 11483") - [11503 Indicative](/materials/csn/11503 "ČSN 11503") - [11523 Indicative](/materials/csn/11523 "ČSN 11523") STN Slovakia · 1 - [11 503 Indicative](/materials/csn/11503 "STN 11 503") PN Poland · 7 - [15GA Indicative](/materials/pn/15ga "PN 15GA") - [16G2 Indicative](/materials/gost/16g2 "PN 16G2") - [18G2 Indicative](/materials/pn/18g2 "PN 18G2") - [18G2A Indicative](/materials/pn/18g2a "PN 18G2A") - [18G2AA Indicative](/materials/pn/18g2aa "PN 18G2AA") - [18G2ACu Indicative](/materials/pn/18g2acu "PN 18G2ACu") - [G355 Indicative](/materials/pn/g355 "PN G355") SRPS Serbia · 1 - [Č.0563 Indicative](/materials/srps/c-0563 "SRPS Č.0563") MSZ Hungary · 4 - [45D Indicative](/materials/msz/45d "MSZ 45D") - [B50.36 Indicative](/materials/msz/b50-36 "MSZ B50.36") - [Fe355C/FF Indicative](/materials/msz/fe355c-ff "MSZ Fe355C/FF") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "MSZ S355J2G3") STAS Romania · 2 - [OL52.3 Indicative](/materials/stas/ol52-3 "STAS OL52.3") - [OL52.4 Indicative](/materials/stas/ol52-4 "STAS OL52.4") BDS Bulgaria · 2 - [17GS Indicative](/materials/bds/17gs "BDS 17GS") - [S355J2G3 Indicative](/materials/din-en/s355j2g3 "BDS S355J2G3") ÖNORM Austria · 2 - [St510D Indicative](/materials/onorm/st510d "ÖNORM St510D") - [St52F Indicative](/materials/onorm/st52f "ÖNORM St52F") NBN Belgium · 1 - [FE510D1FF Indicative](/materials/bs/fe510d1ff "NBN FE510D1FF") KS South Korea · 1 - [STKM16C Indicative](/materials/jis/stkm16c "KS STKM16C") 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 Si C Iron — the balance, never listed by a standard — 97.6 % Mn — 1.6 % Si — 0.6 % C — 0.2 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.2 | | Si | ≤ 0.55 | | Mn | ≤ 1.6 | | P | 0.03 | | S | 0.025 | 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 | ≤0,20 | — | 0.200 | Max | | Si | ≤0,55 | — | 0.550 | Max | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,025 | 0.025 | 0.025 | Exact | | Mn | ≤1,60 | — | 1.600 | 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 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 1.0, 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. [S355JR 1.0045 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 32 designations](/materials/din-en/s355jr "S355JR")[S320GP 1.0046 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/s320gp "S320GP")[S355GP 1.0083 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 5 designations](/materials/din-en/s355gp "S355GP")[P235G1T1 1.0253 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/p235g1t1 "P235G1T1")[P275T1 1.0256 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 7 designations](/materials/din-en/p275t1 "P275T1")[E370 1.0261 Mn ≤1,60 · Si ≤0,55 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/e370 "E370") ## 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=b6da6830-1771-449c-b8b4-f1efd91a9bec&designation=4c4421bf-01ff-4552-8f64-753cd58b7c6c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/st-52-3-g.pdf "Datasheet as PDF")