--- title: "S690G2QL — High-strength steels" description: "S690G2QL: 3 equivalent designations across 2 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/s690g2ql language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/s690g2ql.md cs: https://steelequivalents.com/cs/materiály/din-en/s690g2ql.md de: https://steelequivalents.com/de/werkstoffe/din-en/s690g2ql.md es: https://steelequivalents.com/es/materiales/din-en/s690g2ql.md fr: https://steelequivalents.com/fr/matériaux/din-en/s690g2ql.md hu: https://steelequivalents.com/hu/anyagok/din-en/s690g2ql.md it: https://steelequivalents.com/it/materiali/din-en/s690g2ql.md nl: https://steelequivalents.com/nl/materialen/din-en/s690g2ql.md pl: https://steelequivalents.com/pl/materiały/din-en/s690g2ql.md pt: https://steelequivalents.com/pt/materiais/din-en/s690g2ql.md ru: https://steelequivalents.com/ru/материалы/din-en/s690g2ql.md tr: https://steelequivalents.com/tr/malzemeler/din-en/s690g2ql.md zh: https://steelequivalents.com/zh/材料/din-en/s690g2ql.md ja: https://steelequivalents.com/ja/材料/din-en/s690g2ql.md ar: https://steelequivalents.com/ar/المواد/din-en/s690g2ql.md ko: https://steelequivalents.com/ko/재료/din-en/s690g2ql.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/s690g2ql.md hi: https://steelequivalents.com/hi/सामग्री/din-en/s690g2ql.md content_hash: sha256:541e9bf38686468956d195ca1773bc8ad98702143f6194131a8b24f7803ea5ce 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/s690g2ql > Canonical URL: https://steelequivalents.com/materials/din-en/s690g2ql > 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 · 3 designations # S690G2QL S690G2QL is a material in the category [High-strength steels](/categories/high-strength-steels "High-strength steels"), held under material number 1.8921. Its recorded composition includes C 0.12–0.21%, Si 0.2–0.35%, Cr 0.4–0.65%, Mn 0.7–1% and Mo 0.15–0.25%. We list 2 designations recorded for this grade, in the standards DIN / EN and UNS. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.8921**](/materials/material-no/1.8921 "Material no.: 1.8921") - [*Category* **High-strength steels · 128 grades**](/categories/high-strength-steels "Category: High-strength steels · 128 grades") - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=fe55fd81-0add-4b78-a4c1-fad7fd8caa93&designation=7d0c48e9-478f-4902-9aed-3a7b8b25f38a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s690g2ql.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 3 designations · 2 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 - **S690G2QL This grade’s own name** - [TStE 690 VB This grade’s own name Withdrawn](/materials/din-en/tste-690-vb "DIN / EN TStE 690 VB") UNS United States · 1 - [K11646 Indicative](/materials/uns/k11646 "UNS K11646") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 10 elements on file · weight % What this alloy is Fe Mn Cr Si Iron — the balance, never listed by a standard — 97.8 % Mn — 0.9 % Cr — 0.5 % Si — 0.3 % Traces & impurities · 0.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.12–0.21 | | Si | 0.2–0.35 | | Mn | 0.7–1 | | P | 0.025 | | S | 0.025 | | Cr | 0.4–0.65 | | Mo | 0.15–0.25 | | V | 0.03–0.08 | | Ti | ≤ 0.05 | | B | ≥ 0.0005 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Vanadium Titanium 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 | ≥0,0005 | 0.001 | — | Min | | C | 0,12-0,21 | 0.120 | 0.210 | Range | | Si | 0,20-0,35 | 0.200 | 0.350 | Range | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,025 | 0.025 | 0.025 | Exact | | Ti | ≤0,05 | — | 0.050 | Max | | V | 0,03-0,08 | 0.030 | 0.080 | Range | | Cr | 0,40-0,65 | 0.400 | 0.650 | Range | | Mn | 0,70-1,00 | 0.700 | 1.000 | Range | | Mo | 0,15-0,25 | 0.150 | 0.250 | 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. ## 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. [16MnCrMo3-2 1.8716 Mn 0,70-1,00 · Cr 0,40-0,65 - ΔMn 0.00 - ΔCr 0.00 - 1 designations](/materials/din-en/16mncrmo3-2 "16MnCrMo3-2")[15MnCrMo3-2 1.8719 Mn 0,60-1,00 · Cr 0,40-0,65 - ΔMn 0.05 - ΔCr 0.00 - 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 0.00 - 2 designations](/materials/din-en/s690g1ql "S690G1QL")[17MnCr5-3 1.8715 Mn ≤1,80 · Cr ≤1,00 - ΔMn 0.05 - ΔCr 0.03 - 1 designations](/materials/din-en/17mncr5-3 "17MnCr5-3")[26MnCr6-3 1.8721 Mn ≤1,80 · Cr ≤1,00 - ΔMn 0.05 - ΔCr 0.03 - 1 designations](/materials/din-en/26mncr6-3 "26MnCr6-3")[18MnCr4-3 1.8714 Mn ≤1,50 · Cr ≤1,00 - ΔMn 0.10 - ΔCr 0.03 - 2 designations](/materials/din-en/18mncr4-3 "18MnCr4-3") ## 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=fe55fd81-0add-4b78-a4c1-fad7fd8caa93&designation=7d0c48e9-478f-4902-9aed-3a7b8b25f38a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s690g2ql.pdf "Datasheet as PDF")