--- title: "Steel material equivalents: 6,600 grades from 42 standards" description: "Find the equivalent of a steel grade across DIN, EN, AISI, ASTM, UNS, JIS, GB, GOST and more, with chemical composition and mechanical properties." canonical: https://steelequivalents.com/ language: en robots: index, follow og_type: website type: index language_alternates: en: https://steelequivalents.com/index.md cs: https://steelequivalents.com/cs.md de: https://steelequivalents.com/de.md es: https://steelequivalents.com/es.md fr: https://steelequivalents.com/fr.md hu: https://steelequivalents.com/hu.md it: https://steelequivalents.com/it.md nl: https://steelequivalents.com/nl.md pl: https://steelequivalents.com/pl.md pt: https://steelequivalents.com/pt.md ru: https://steelequivalents.com/ru.md tr: https://steelequivalents.com/tr.md zh: https://steelequivalents.com/zh.md ja: https://steelequivalents.com/ja.md ar: https://steelequivalents.com/ar.md ko: https://steelequivalents.com/ko.md pt-br: https://steelequivalents.com/pt-br.md hi: https://steelequivalents.com/hi.md content_hash: sha256:4ccd2d1b8e8ef63df0d4766b11f6598fe0de7166f30f40e2d7f7cadac33df5c0 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/ > Canonical URL: https://steelequivalents.com/ > 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. ![One grade. Every standard that names it.](/images/uploads/b644e672-593f-4445-b35c-14a595ac5dd5/steelequivalents-com-steel-on-a-roll-and-bar-steel-in-the-foreground-1920x824.jpg) Steel grade cross-reference # One grade. Every standard that names it. AISI, UNS, EN or Werkstoffnummer — enter one, get the rest, with the composition behind it. Search steel grades Search [Categories](/categories "Categories")[Calculators](/calculators "Calculators")[Advanced search](/search "Advanced search") Materials 6,600 Designations 28,825 With equivalents 2,830 Composition values 47,896 Standards covered 41 Categories 49 Coverage ## Holdings per standard Bar length is the designation count on a linear scale, and every row links to its standard. Standards with no browsable listing are left out rather than shown empty: the internal Werkstoffnummer index, which has none of its own, and one whose issuing body we could not establish. Composition ## The families, drawn from the composition Every material with both a chromium and a nickel figure — 3,346 of them — straight from the composition table. Each dot is the midpoint of that grade's specified range; nothing is modelled, and the clusters fall out of the numbers. - 1.4xx stainless grades — 454 - 2.4xx nickel and cobalt alloys — 153 - All other number classes — 2,739 Read left to right. At the origin sit the unalloyed and low-alloy steels, where chromium and nickel are residuals, not additions. The dense band at 16–19 % chromium is the stainless family splitting on nickel — ferritic and martensitic along the floor, austenitic lifted to 8–14 %. Above the scale change, the nickel-base alloys. Grades whose nickel is given only as “rest” carry no number and are not plotted. Widest coverage ## The grades that appear in the most standards A coverage ranking, not a popularity one: ordered by how many standards name each grade, then by total designations. That is a property of our data, not of demand — we hold no search history for this catalogue yet. When we do, this becomes a real most-requested list and will say so. | Material no. | EN name | AISI / SAE | UNS | Standards | Designations | |---|---|---|---|---|---| | [1.8159](/materials/material-no/1.8159 "Search steel grades: 1.8159") | 51CrV4 | 6145 | G61500 | 28 | 73 | | [1.0038](/materials/material-no/1.0038 "Search steel grades: 1.0038") | S235JR | Gr.36 | K01500 | 27 | 152 | | [1.4006](/materials/material-no/1.4006 "Search steel grades: 1.4006") | X12Cr13 | 410 | S41000 | 27 | 145 | | [1.0044](/materials/material-no/1.0044 "Search steel grades: 1.0044") | S275JR | 1020 | G10200 | 27 | 130 | | [1.4541](/materials/material-no/1.4541 "Search steel grades: 1.4541") | X6CrNiTi18-10 | 321 | S32100 | 26 | 175 | | [1.4404](/materials/material-no/1.4404 "Search steel grades: 1.4404") | X2CrNiMo17-12-2 | 316L | S31603 | 26 | 147 | | [1.7218](/materials/material-no/1.7218 "Search steel grades: 1.7218") | 25CrMo4 | 4130H | H41300 | 26 | 111 | | [1.7225](/materials/material-no/1.7225 "Search steel grades: 1.7225") | 42CrMo4 | 4140 | G41400 | 26 | 95 | | [1.0601](/materials/material-no/1.0601 "Search steel grades: 1.0601") | C60 | 1060 | G10600 | 26 | 92 | | [1.6582](/materials/material-no/1.6582 "Search steel grades: 1.6582") | 34CrNiMo6 | 4340 | G43400 | 26 | 84 | | [1.7220](/materials/material-no/1.7220 "Search steel grades: 1.7220") | 34CrMo4 | 4130 | G41300 | 25 | 159 | | [1.0402](/materials/material-no/1.0402 "Search steel grades: 1.0402") | C22 | 1020 | G10200 | 25 | 94 | | [1.0503](/materials/material-no/1.0503 "Search steel grades: 1.0503") | C45 | 1043 | G10430 | 25 | 93 | | [1.7131](/materials/material-no/1.7131 "Search steel grades: 1.7131") | 16MnCr5 | 5115 | G51150 | 25 | 78 | Counted across the 41 browsable standards only. Where a grade carries several designations inside one standard, this table shows one of them; the detail page lists all of them. Browse ## Categories by material count The 12 largest real categories by material count, then the catch-all bucket — the biggest entry in the catalogue, and shown for exactly that reason. All 6,600 materials are reachable from this block; none sits outside the 49 categories. [**Stainless steels** 468](/categories/stainless-steels "Stainless steels")[**Unalloyed structural steels** 452](/categories/unalloyed-structural-steels "Unalloyed structural steels")[**Cold extrusion steels** 156](/categories/cold-extrusion-steels "Cold extrusion steels")[**Quenched and tempered steels** 133](/categories/quenched-and-tempered-steels "Quenched and tempered steels")[**High-strength steels** 128](/categories/high-strength-steels "High-strength steels")[**Tool steels for cold work** 109](/categories/tool-steels-for-cold-work "Tool steels for cold work")[**Cast stainless steels** 87](/categories/cast-stainless-steels "Cast stainless steels")[**Nickel and cobalt alloys** 87](/categories/nickel-and-cobalt-alloys "Nickel and cobalt alloys")[**Heat-resistant cast steels** 82](/categories/heat-resistant-cast-steels "Heat-resistant cast steels")[**Cast iron** 73](/categories/cast-iron "Cast iron")[**Heat resistant steels** 64](/categories/heat-resistant-steels "Heat resistant steels")[**Heat-resistant structural steels** 62](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") [**Others** 1,754*These are grades the legacy import never classified, not a family with something in common. For most of them this is the only category path there is, which is why it is shown rather than hidden.*](/categories/others "Others") Definition ## What cross-standard equivalence actually means Cross-standard equivalence means two designations from different standards describe the same steel — or a steel close enough to substitute. It is not one relationship but three. The same grade, recorded twice A Werkstoffnummer and its EN name are one grade written down twice inside a single standards system. Nothing is being judged here — the two are the same entry. Two standards, overlapping limits Two national standards specifying overlapping composition ranges. In most applications they interchange, but the limits are not identical and the mechanical requirements differ. A practical approximation Asserted by a supplier or a reference work, with no standards body behind it. Useful, and worth showing, but it is somebody's opinion about substitution rather than a specification. Every cross-reference here is labelled with which of the three it is, and where it came from. Approximations stay flagged — check one against the mill certificate before you quote it as identical. **10,099Same-grade designations**From our own standards mapping. Grade identity, not a judgement call. **18,607Approximate matches**Gathered from 63 third-party reference sources. Flagged everywhere they appear — verify before quoting. **555AI-researched claims, unverified**Proposed by automated research across 155 grades, not yet checked against a standard. Shown, because hiding them would not remove them from the data. Enquiry ## Grade not in the list? Send us the standard you work to, or the spec sheet you were handed. We identify the grade and name the equivalents we can back up. [Get in touch](/contact "Contact")