--- title: "RRSt 13 — Unalloyed structural steels" description: "RRSt 13 in DIN / EN: material number 1.0347, also listed as DC 03 G 1. Category: Unalloyed structural steels. Designations recorded for this grade: 25." canonical: https://steelequivalents.com/materials/din-en/rrst-13 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/rrst-13.md cs: https://steelequivalents.com/cs/materiály/din-en/rrst-13.md de: https://steelequivalents.com/de/werkstoffe/din-en/rrst-13.md es: https://steelequivalents.com/es/materiales/din-en/rrst-13.md fr: https://steelequivalents.com/fr/matériaux/din-en/rrst-13.md hu: https://steelequivalents.com/hu/anyagok/din-en/rrst-13.md it: https://steelequivalents.com/it/materiali/din-en/rrst-13.md nl: https://steelequivalents.com/nl/materialen/din-en/rrst-13.md pl: https://steelequivalents.com/pl/materiały/din-en/rrst-13.md pt: https://steelequivalents.com/pt/materiais/din-en/rrst-13.md ru: https://steelequivalents.com/ru/материалы/din-en/rrst-13.md tr: https://steelequivalents.com/tr/malzemeler/din-en/rrst-13.md zh: https://steelequivalents.com/zh/材料/din-en/rrst-13.md ja: https://steelequivalents.com/ja/材料/din-en/rrst-13.md ar: https://steelequivalents.com/ar/المواد/din-en/rrst-13.md ko: https://steelequivalents.com/ko/재료/din-en/rrst-13.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/rrst-13.md hi: https://steelequivalents.com/hi/सामग्री/din-en/rrst-13.md content_hash: sha256:2682a1e973b2e06d29700d854a3c2df5c2fe2d053d5405b47c3f34af8c7a1bc0 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/rrst-13 > Canonical URL: https://steelequivalents.com/materials/din-en/rrst-13 > 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 · 25 designations # RRSt 13 RRSt 13 is a designation in DIN / EN for the material held under material number 1.0347, also listed as DC 03 G 1. It is a material in the category Unalloyed structural steels. We list 25 designations recorded for this grade, in the standards DIN / EN, AISI / SAE, ASTM, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN and STN. - [*Material no.* **1.0347**](/materials/material-no/1.0347 "Material no.: 1.0347") - [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades") - *Designations* **25** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=da1d767c-133c-4020-a807-1c9f9164ebbd&designation=3859ff72-e86e-4809-b907-115e6ac98287 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/rrst-13.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN DC 03 G 1 This grade’s own name · 2 grades on that route](/materials/din-en/dc-03-g-1 "DIN / EN DC 03 G 1") - [ASTM A1008 DS Type A+B This grade’s own name](/materials/astm/a1008-ds-type-a-b "ASTM A1008 DS Type A+B") - [GB E This grade’s own name](/materials/gb/e "GB E") ## 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 25 designations · 13 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 · 8 - [1.0336 Indicative](/materials/material-no/1.0336 "DIN / EN 1.0336") - [DC 03 G 1 This grade’s own name](/materials/din-en/dc-03-g-1 "DIN / EN DC 03 G 1") - [DC03 Indicative](/materials/gb/dc03 "DIN / EN DC03") - [FeP03 Indicative](/materials/din-en/fep03 "DIN / EN FeP03") - **RRSt 13 This grade’s own name Withdrawn** - [RRSt 3 This grade’s own name](/materials/din-en/rrst-3 "DIN / EN RRSt 3") - [St 13 This grade’s own name Withdrawn](/materials/din-en/st-13 "DIN / EN St 13") - [USt14 Indicative](/materials/din-en/ust14 "DIN / EN USt14") AISI / SAE United States · 1 - [A619 Indicative](/materials/aisi-sae/a619 "AISI / SAE A619") ASTM United States · 2 - [A1008 DS Type A+B This grade’s own name](/materials/astm/a1008-ds-type-a-b "ASTM A1008 DS Type A+B") - [A619 Indicative](/materials/aisi-sae/a619 "ASTM A619") BS United Kingdom · 3 - [3CR Indicative](/materials/bs/3cr "BS 3CR") - [CR2 Indicative](/materials/is/cr2 "BS CR2") - [CR3 Indicative](/materials/is/cr3 "BS CR3") AFNOR France · 2 - [DC03 Indicative](/materials/gb/dc03 "AFNOR DC03") - [E Indicative](/materials/gb/e "AFNOR E") UNE Spain · 1 - [AP02 Indicative](/materials/une/ap02 "UNE AP02") JIS Japan · 1 - [SPCD Indicative](/materials/jis/spcd "JIS SPCD") GB China · 1 - [E This grade’s own name](/materials/gb/e "GB E") GOST Russia / CIS · 1 - [08YU Indicative](/materials/gost/08yu "GOST 08YU") UNI Italy · 1 - [FeP02 Indicative](/materials/uni/fep02 "UNI FeP02") SS Sweden · 1 - [1146 Indicative](/materials/aisi-sae/1146 "SS 1146") ČSN Czechia · 2 - [11301 Indicative](/materials/csn/11301 "ČSN 11301") - [11304 Indicative](/materials/csn/11304 "ČSN 11304") STN Slovakia · 1 - [11 301 Indicative](/materials/csn/11301 "STN 11 301") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 4 elements on file · weight % What this alloy is Fe Mn C P Iron — the balance, never listed by a standard — 99.4 % Mn — 0.5 % C — 0.1 % P — 0 % Traces & impurities · 0 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.1 | | Mn | ≤ 0.45 | | P | 0.035 | | S | 0.035 | Carbon 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 | ≤0,10 | — | 0.100 | Max | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Mn | ≤0,45 | — | 0.450 | 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: Si, 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. ## 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=da1d767c-133c-4020-a807-1c9f9164ebbd&designation=3859ff72-e86e-4809-b907-115e6ac98287 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/rrst-13.pdf "Datasheet as PDF")