--- title: "High-strength steels — 128 grades — Page 3" description: "High-strength steels are steels designed to carry high loads while resisting deformation. They are used for load-bearing structures, vehicles and…" canonical: https://steelequivalents.com/categories/high-strength-steels/page/3 language: en robots: index, follow og_type: website type: category-detail language_alternates: en: https://steelequivalents.com/categories/high-strength-steels/page/3.md cs: https://steelequivalents.com/cs/kategorie/vysokopevnostní-oceli.md de: https://steelequivalents.com/de/kategorien/hochfeste-stähle.md es: https://steelequivalents.com/es/categorías/aceros-de-alta-resistencia.md fr: https://steelequivalents.com/fr/catégories/aciers-à-haute-résistance.md hu: https://steelequivalents.com/hu/kategóriák/nagyszilárdságú-acélok.md it: https://steelequivalents.com/it/categorie/acciai-ad-alta-resistenza.md nl: https://steelequivalents.com/nl/categorieën/hoogsterktestalen.md pl: https://steelequivalents.com/pl/kategorie/stale-wysokowytrzymałe.md pt: https://steelequivalents.com/pt/categorias/aços-de-alta-resistência.md ru: https://steelequivalents.com/ru/категории/высокопрочные-стали.md tr: https://steelequivalents.com/tr/kategoriler/yüksek-mukavemetli-çelikler.md zh: https://steelequivalents.com/zh/类别/超高强度钢.md ja: https://steelequivalents.com/ja/カテゴリー/超高強度鋼.md ar: https://steelequivalents.com/ar/الفئات/فولاذ-عالي-المقاومة.md ko: https://steelequivalents.com/ko/분류/초고강도강.md pt-br: https://steelequivalents.com/pt-br/categorias/aços-de-alta-resistência.md hi: https://steelequivalents.com/hi/श्रेणियाँ/उच्च-सामर्थ्य-इस्पात.md content_hash: sha256:42bdd0fc8eeda2ea0f2df8075d11712e37fa6e086180a4c7f15a884c3030d1ec 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/categories/high-strength-steels/page/3 > Canonical URL: https://steelequivalents.com/categories/high-strength-steels/page/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. ![High-strength steels](/images/uploads/fa2a9f08-f0e4-4bcd-b6ff-2699c8460f32/high-strength-steels-category-quenched-bar-ends-1920x1080.jpg) Category · 128 grades # 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. | Grade | Material no. | C | Si | P | S | Cr | Mn | |---|---|---|---|---|---|---|---| | [L485QO](/materials/din-en/l485qo "L485QO") | [1.8775](/materials/material-no/1.8775 "1.8775") | — | — | — | — | — | — | | [L555QO](/materials/din-en/l555qo "L555QO") | [1.8776](/materials/material-no/1.8776 "1.8776") | — | — | — | — | — | — | | [L360NO](/materials/din-en/l360no "L360NO") | [1.8778](/materials/material-no/1.8778 "1.8778") | — | — | — | — | — | — | | [S800QL1](/materials/din-en/s800ql1 "S800QL1") | [1.8780](/materials/material-no/1.8780 "1.8780") | ≤0,20 | ≤,80 | 0,02 | 0,01 | ≤1,50 | ≤1,60 | | [L360MO](/materials/din-en/l360mo "L360MO") | [1.8781](/materials/material-no/1.8781 "1.8781") | — | — | — | — | — | — | | [L390MO](/materials/din-en/l390mo "L390MO") | [1.8782](/materials/material-no/1.8782 "1.8782") | — | — | — | — | — | — | | [L415MO](/materials/din-en/l415mo "L415MO") | [1.8783](/materials/material-no/1.8783 "1.8783") | — | — | — | — | — | — | | [L450MO](/materials/din-en/l450mo "L450MO") | [1.8784](/materials/material-no/1.8784 "1.8784") | — | — | — | — | — | — | | [L485MO](/materials/din-en/l485mo "L485MO") | [1.8785](/materials/material-no/1.8785 "1.8785") | — | — | — | — | — | — | | [L555MO](/materials/din-en/l555mo "L555MO") | [1.8786](/materials/material-no/1.8786 "1.8786") | — | — | — | — | — | — | | [L245R](/materials/din-en/l245r "L245R") | [1.8788](/materials/material-no/1.8788 "1.8788") | — | — | — | — | — | — | | [L290R](/materials/din-en/l290r "L290R") | [1.8789](/materials/material-no/1.8789 "1.8789") | — | — | — | — | — | — | | [L245N](/materials/din-en/l245n "L245N") | [1.8790](/materials/material-no/1.8790 "1.8790") | — | — | — | — | — | — | | [L290N](/materials/din-en/l290n "L290N") | [1.8791](/materials/material-no/1.8791 "1.8791") | — | — | — | — | — | — | | [L320N](/materials/din-en/l320n "L320N") | [1.8792](/materials/material-no/1.8792 "1.8792") | — | — | — | — | — | — | | [L360N](/materials/din-en/l360n "L360N") | [1.8793](/materials/material-no/1.8793 "1.8793") | — | — | — | — | — | — | | [S790QL](/materials/din-en/s790ql "S790QL") | [1.8795](/materials/material-no/1.8795 "1.8795") | 0,12-0,18 | 0,20-0,50 | 0,025 | 0,015 | ≤0,80 | 1,20-1,70 | | [S890G1QL](/materials/din-en/s890g1ql "S890G1QL") | [1.8796](/materials/material-no/1.8796 "1.8796") | 0,14-0,18 | 0,20-0,50 | 0,02 | 0,01 | 0,50-0,90 | 1,20-1,50 | | [S960G1QL](/materials/din-en/s960g1ql "S960G1QL") | [1.8797](/materials/material-no/1.8797 "1.8797") | ≤0,20 | ≤0,50 | 0,02 | 0,01 | 0,40-1,00 | 1,20-1,80 | | [S690G1QL](/materials/din-en/s690g1ql "S690G1QL") | [1.8920](/materials/material-no/1.8920 "1.8920") | 0,10-0,20 | 0,15-0,35 | 0,025 | 0,025 | 0,40-0,65 | 0,60-1,00 | | [S690G2QL](/materials/din-en/s690g2ql "S690G2QL") | [1.8921](/materials/material-no/1.8921 "1.8921") | 0,12-0,21 | 0,20-0,35 | 0,025 | 0,025 | 0,40-0,65 | 0,70-1,00 | | [S690G4QL](/materials/din-en/s690g4ql "S690G4QL") | [1.8922](/materials/material-no/1.8922 "1.8922") | 0,12-0,21 | 0,20-0,35 | 0,025 | 0,025 | 0,40-0,65 | 0,95-1,30 | | [S890QL1](/materials/din-en/s890ql1 "S890QL1") | [1.8925](/materials/material-no/1.8925 "1.8925") | ≤0,20 | ≤0,80 | 0,02 | 0,01 | ≤1,50 | ≤1,70 | | [FeE690VKT](/materials/din-en/fee690vkt "FeE690VKT") | [1.8928](/materials/material-no/1.8928 "1.8928") | ≤0,20 | ≤0,80 | 0,02 | 0,01 | ≤1,50 | ≤1,70 | | [S690Q](/materials/din-en/s690q "S690Q") | [1.8931](/materials/material-no/1.8931 "1.8931") | ≤0,20 | ≤0,80 | 0,025 | 0,015 | ≤1,50 | ≤1,70 | | [S960QL](/materials/din-en/s960ql "S960QL") | [1.8933](/materials/material-no/1.8933 "1.8933") | ≤0,20 | ≤0,80 | 0,02 | 0,01 | ≤1,50 | ≤1,70 | | [S890QL](/materials/din-en/s890ql "S890QL") | [1.8983](/materials/material-no/1.8983 "1.8983") | ≤0,20 | ≤0,80 | 0,02 | 0,01 | ≤1,50 | ≤1,70 | | [S690QL1](/materials/din-en/s690ql1 "S690QL1") | [1.8988](/materials/material-no/1.8988 "1.8988") | ≤0,20 | ≤0,80 | 0,02 | 0,01 | ≤1,50 | ≤1,70 | [Previous](/categories/high-strength-steels/page/2 "Previous") Page 3 of 3 ## Standards covering this category 12 - [**DIN / EN***102 grades*](/materials/din-en "DIN / EN — 102 grades in this category") - [**JIS***27 grades*](/materials/jis "JIS — 27 grades in this category") - [**AFNOR***4 grades*](/materials/afnor "AFNOR — 4 grades in this category") - [**UNS***3 grades*](/materials/uns "UNS — 3 grades in this category") - [**AISI / SAE***3 grades*](/materials/aisi-sae "AISI / SAE — 3 grades in this category") - [**KS***3 grades*](/materials/ks "KS — 3 grades in this category") - [**SS***2 grades*](/materials/ss "SS — 2 grades in this category") - [**ČSN***2 grades*](/materials/csn "ČSN — 2 grades in this category") - [**ISO***1 grade*](/materials/iso "ISO — 1 grade in this category") - [**GB***1 grade*](/materials/gb "GB — 1 grade in this category") - [**GOST***1 grade*](/materials/gost "GOST — 1 grade in this category") - [**STN***1 grade*](/materials/stn "STN — 1 grade in this category") ## Property ranges 5 | Property | Unit | Min | Max | Grades | |---|---|---|---|---| | ReH | N/mm² | 390 | 960 | 8 | | Rm | N/mm² | 340 | 1150 | 34 | | Re | N/mm² | 175 | 700 | 26 | | A | % | 6 | 35 | 27 | | rho | g/cm³ | 7.85 | 7.85 | 102 | Derived from 102 grades in this category with a recorded value. ## Composition range 17 | Property | Unit | Min | Max | Grades | |---|---|---|---|---| | B | % | 0.0002 | 0.005 | 27 | | C | % | 0.09 | 0.55 | 62 | | N | % | 0.006 | 0.025 | 17 | | Al | % | 0.015 | 0.05 | 8 | | Si | % | 0.15 | 0.8 | 59 | | P | % | 0.015 | 0.08 | 62 | | S | % | 0.005 | 0.035 | 62 | | Ti | % | 0.01 | 0.05 | 14 | | V | % | 0.03 | 0.2 | 30 | | Cr | % | 0.3 | 1.6 | 50 | | Mn | % | 0.6 | 2 | 62 | | Ni | % | 0.05 | 2 | 36 | | Cu | % | 0.15 | 1.5 | 29 | | Zr | % | 0.15 | 0.15 | 6 | | Nb | % | 0.03 | 0.06 | 18 | | Mo | % | 0.1 | 1 | 48 | | W | % | 0.1 | 1.5 | 3 | Derived from 62 grades in this category with a recorded value. ## Related guides 2 - [**High-Strength Low-Alloy Steels: Grades, Microalloying, Processing, and Properties**](/wiki/steel-families/high-strength-low-alloy-steels "High-Strength Low-Alloy Steels: Grades, Microalloying, Processing, and Properties") - [**Steel Creep, Stress Rupture, and Long-Term High-Temperature Performance**](/wiki/reading-a-datasheet/steel-creep-stress-rupture-and-long-term-high-temperature-performance "Steel Creep, Stress Rupture, and Long-Term High-Temperature Performance")