--- title: "18MnCr4-3 — High-strength steels" description: "18MnCr4-3: 2 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/18mncr4-3 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/18mncr4-3.md cs: https://steelequivalents.com/cs/materiály/din-en/18mncr4-3.md de: https://steelequivalents.com/de/werkstoffe/din-en/18mncr4-3.md es: https://steelequivalents.com/es/materiales/din-en/18mncr4-3.md fr: https://steelequivalents.com/fr/matériaux/din-en/18mncr4-3.md hu: https://steelequivalents.com/hu/anyagok/din-en/18mncr4-3.md it: https://steelequivalents.com/it/materiali/din-en/18mncr4-3.md nl: https://steelequivalents.com/nl/materialen/din-en/18mncr4-3.md pl: https://steelequivalents.com/pl/materiały/din-en/18mncr4-3.md pt: https://steelequivalents.com/pt/materiais/din-en/18mncr4-3.md ru: https://steelequivalents.com/ru/материалы/din-en/18mncr4-3.md tr: https://steelequivalents.com/tr/malzemeler/din-en/18mncr4-3.md zh: https://steelequivalents.com/zh/材料/din-en/18mncr4-3.md ja: https://steelequivalents.com/ja/材料/din-en/18mncr4-3.md ar: https://steelequivalents.com/ar/المواد/din-en/18mncr4-3.md ko: https://steelequivalents.com/ko/재료/din-en/18mncr4-3.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/18mncr4-3.md hi: https://steelequivalents.com/hi/सामग्री/din-en/18mncr4-3.md content_hash: sha256:d821a87eb935c3805c063ca84391660a04a9c9eb5c57710f42007c598676377f 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/18mncr4-3 > Canonical URL: https://steelequivalents.com/materials/din-en/18mncr4-3 > 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 · 2 designations # 18MnCr4-3 18MnCr4-3 is a material in the category [High-strength steels](/categories/high-strength-steels "High-strength steels"), held under material number 1.8714. Its recorded composition includes C ≤ 0.2%, Si ≤ 0.8%, Cr ≤ 1%, Mn ≤ 1.5% and Mo ≤ 0.5%. We list one designation recorded for this grade, in the standard DIN / EN. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.8714**](/materials/material-no/1.8714 "Material no.: 1.8714") - [*Category* **High-strength steels · 128 grades**](/categories/high-strength-steels "Category: High-strength steels · 128 grades") - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=6abf8fe7-6c1a-4aed-8f5a-d899b444729d&designation=d0157eee-3457-4304-b107-8cf3a54e6fe7 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/18mncr4-3.pdf "Datasheet as PDF") ## About High-strength steels High-strength steels are steels designed to carry high loads while resisting deformation. They are used for load-bearing structures, vehicles and machinery where strength, durability and reduced material weight are important. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 2 designations · 1 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 · 2 - **18MnCr4-3 This grade’s own name** - [23MnCr4-3 This grade’s own name Withdrawn](/materials/din-en/23mncr4-3 "DIN / EN 23MnCr4-3") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Mn Cr Si Iron — the balance, never listed by a standard — 96 % Mn — 1.5 % Cr — 1 % Si — 0.8 % Traces & impurities · 0.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.2 | | Si | ≤ 0.8 | | Mn | ≤ 1.5 | | P | 0.025 | | S | 0.01 | | Cr | ≤ 1 | | Mo | ≤ 0.5 | | B | ≤ 0.005 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Boron 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 | |---|---|---|---|---| | B | ≤0,0050 | — | 0.005 | Max | | C | ≤0,20 | — | 0.200 | Max | | Si | ≤0,80 | — | 0.800 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | Cr | ≤1,00 | — | 1.000 | Max | | Mn | ≤1,50 | — | 1.500 | Max | | Mo | ≤0,50 | — | 0.500 | 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. ## 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 1.8, a shared category, and a published range for Mn / Cr 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. [15MnCrMo3-2 1.8719 Mn 0,60-1,00 · Cr 0,40-0,65 - ΔMn 0.05 - ΔCr 0.03 - 1 designations](/materials/din-en/15mncrmo3-2 "15MnCrMo3-2")[S690G1QL 1.8920 Mn 0,60-1,00 · Cr 0,40-0,65 - ΔMn 0.05 - ΔCr 0.03 - 2 designations](/materials/din-en/s690g1ql "S690G1QL")[16MnCrMo3-2 1.8716 Mn 0,70-1,00 · Cr 0,40-0,65 - ΔMn 0.10 - ΔCr 0.03 - 1 designations](/materials/din-en/16mncrmo3-2 "16MnCrMo3-2")[S690G2QL 1.8921 Mn 0,70-1,00 · Cr 0,40-0,65 - ΔMn 0.10 - ΔCr 0.03 - 3 designations](/materials/din-en/s690g2ql "S690G2QL")[17MnCr5-3 1.8715 Mn ≤1,80 · Cr ≤1,00 - ΔMn 0.15 - ΔCr 0.00 - 1 designations](/materials/din-en/17mncr5-3 "17MnCr5-3")[26MnCr6-3 1.8721 Mn ≤1,80 · Cr ≤1,00 - ΔMn 0.15 - ΔCr 0.00 - 1 designations](/materials/din-en/26mncr6-3 "26MnCr6-3") ## 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=6abf8fe7-6c1a-4aed-8f5a-d899b444729d&designation=d0157eee-3457-4304-b107-8cf3a54e6fe7 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/18mncr4-3.pdf "Datasheet as PDF")