--- title: "Special steels for defense technology — 8 grades" description: "Special steels for defense technology are alloy steels developed for demanding defense applications. They are characterised by controlled additions of…" canonical: https://steelequivalents.com/categories/special-steels-for-defense-technology language: en robots: index, follow og_type: website type: category-detail language_alternates: en: https://steelequivalents.com/categories/special-steels-for-defense-technology.md cs: https://steelequivalents.com/cs/kategorie/speciální-oceli-pro-obrannou-techniku.md de: https://steelequivalents.com/de/kategorien/sonderstähle-für-die-wehrtechnik.md es: https://steelequivalents.com/es/categorías/aceros-especiales-para-tecnología-de-defensa.md fr: https://steelequivalents.com/fr/catégories/aciers-spéciaux-pour-la-défense.md hu: https://steelequivalents.com/hu/kategóriák/védelmi-ipari-különleges-acélok.md it: https://steelequivalents.com/it/categorie/acciai-speciali-per-la-tecnologia-della-difesa.md nl: https://steelequivalents.com/nl/categorieën/speciale-staalsoorten-voor-defensietechniek.md pl: https://steelequivalents.com/pl/kategorie/stale-specjalne-dla-techniki-obronnej.md pt: https://steelequivalents.com/pt/categorias/aços-especiais-para-tecnologia-de-defesa.md ru: https://steelequivalents.com/ru/категории/специальные-стали-для-оборонной-техники.md tr: https://steelequivalents.com/tr/kategoriler/savunma-teknolojisi-için-özel-çelikler.md zh: https://steelequivalents.com/zh/类别/国防技术用特种钢.md ja: https://steelequivalents.com/ja/カテゴリー/防衛技術用特殊鋼.md ar: https://steelequivalents.com/ar/الفئات/فولاذ-خاص-لتقنيات-الدفاع.md ko: https://steelequivalents.com/ko/분류/방위산업용-특수강.md pt-br: https://steelequivalents.com/pt-br/categorias/aços-especiais-para-tecnologia-de-defesa.md hi: https://steelequivalents.com/hi/श्रेणियाँ/रक्षा-प्रौद्योगिकी-के-लिए-विशेष-इस्पात.md content_hash: sha256:3a5abf37b1fa2188574f9f35da0617f343a2843ba59048a14e1f9fb64d399c01 generated: 2026-09-22 --- > **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/special-steels-for-defense-technology > Canonical URL: https://steelequivalents.com/categories/special-steels-for-defense-technology > 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. ![Special steels for defense technology](/images/uploads/c6768801-ae58-4e0f-88ad-923087299ec5/special-steels-for-defense-technology-category-heavy-quenched-plate-1920x1080.jpg) Category · 8 grades # Special steels for defense technology Special steels for defense technology are alloy steels developed for demanding defense applications. They are characterised by controlled additions of elements such as nickel, chromium, molybdenum and vanadium, supporting combinations of strength, toughness, hardenability and wear resistance. They are used for heavily loaded structural, mechanical and protective components where dependable performance is required. | Grade | Material no. | C | Si | P | S | Cr | Mn | |---|---|---|---|---|---|---|---| | [31NiCrMo13-4](/materials/din-en/31nicrmo13-4 "31NiCrMo13-4") | [1.6659](/materials/material-no/1.6659 "1.6659") | 0,28-0,35 | 0,15-0,40 | 0,025 | 0,025 | 0,90-1,20 | 0,40-0,70 | | 1.6722 | [1.6722](/materials/material-no/1.6722 "1.6722") | 0,13-0,18 | 0,15-0,40 | 0,015 | 0,01 | 1,00-1,40 | 0,25-0,55 | | [15NiCrMo16-5](/materials/din-en/15nicrmo16-5 "15NiCrMo16-5") | [1.6723](/materials/material-no/1.6723 "1.6723") | 0,13-0,18 | 0,15-0,40 | 0,025 | 0,02 | 1,00-1,40 | 0,25-0,55 | | [15NiCrMo10-6](/materials/din-en/15nicrmo10-6 "15NiCrMo10-6") | [1.6780](/materials/material-no/1.6780 "1.6780") | 0,12-0,18 | 0,15-0,35 | 0,01 | 0,01 | 1,00-1,80 | 0,10-0,40 | | [16NiCrMo12-6](/materials/din-en/16nicrmo12-6 "16NiCrMo12-6") | [1.6782](/materials/material-no/1.6782 "1.6782") | 0,12-0,20 | 0,15-0,35 | 0,015 | 0,005 | 1,00-1,80 | 0,10-0,40 | | [32NiCrMoV12-3](/materials/din-en/32nicrmov12-3 "32NiCrMoV12-3") | [1.6943](/materials/material-no/1.6943 "1.6943") | 0,25-0,40 | 0,10-0,35 | 0,015 | 0,015 | 0,50-1,00 | 0,40-0,70 | | [35NiCrMoV12-5](/materials/din-en/35nicrmov12-5 "35NiCrMoV12-5") | [1.6959](/materials/material-no/1.6959 "1.6959") | 0,30-0,40 | 0,15-0,35 | 0,015 | 0,015 | 1,00-1,40 | 0,40-0,70 | | [32CrMoV12-10](/materials/din-en/32crmov12-10 "32CrMoV12-10") | [1.7765](/materials/material-no/1.7765 "1.7765") | 0,30-0,35 | ≤0,35 | 0,025 | 0,01 | 2,80-3,20 | ≤0,60 | ## Standards covering this category 4 - [**DIN / EN***7 grades*](/materials/din-en "DIN / EN — 7 grades in this category") - [**UNS***4 grades*](/materials/uns "UNS — 4 grades in this category") - [**AISI / SAE***1 grade*](/materials/aisi-sae "AISI / SAE — 1 grade in this category") - [**GOST***1 grade*](/materials/gost "GOST — 1 grade in this category") ## Property ranges 1 | Property | Unit | Min | Max | Grades | |---|---|---|---|---| | rho | g/cm³ | 7.85 | 7.85 | 8 | Derived from 8 grades in this category with a recorded value. ## Composition range 15 | Property | Unit | Min | Max | Grades | |---|---|---|---|---| | C | % | 0.12 | 0.4 | 8 | | Al | % | 0.015 | 0.015 | 2 | | Si | % | 0.1 | 0.4 | 8 | | P | % | 0.01 | 0.025 | 8 | | S | % | 0.005 | 0.025 | 8 | | Ti | % | 0.02 | 0.02 | 2 | | V | % | 0.03 | 0.35 | 5 | | Cr | % | 0.5 | 3.2 | 8 | | Mn | % | 0.1 | 0.7 | 8 | | Ni | % | 2 | 4.3 | 7 | | Cu | % | 0.25 | 0.25 | 2 | | As | % | 0.025 | 0.025 | 1 | | Mo | % | 0.2 | 1.2 | 8 | | Sn | % | 0.03 | 0.03 | 1 | | Sb | % | 0.025 | 0.025 | 1 | Derived from 8 grades in this category with a recorded value.