--- title: "A313 — 18 equivalent grades, compared" description: "The designation A313 is carried by 18 different grades. Compare them on the elements that actually differ, then open the one your print means." canonical: https://steelequivalents.com/materials/astm/a313 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/astm/a313.md cs: https://steelequivalents.com/cs/materiály/astm/a313.md de: https://steelequivalents.com/de/werkstoffe/astm/a313.md es: https://steelequivalents.com/es/materiales/astm/a313.md fr: https://steelequivalents.com/fr/matériaux/astm/a313.md hu: https://steelequivalents.com/hu/anyagok/astm/a313.md it: https://steelequivalents.com/it/materiali/astm/a313.md nl: https://steelequivalents.com/nl/materialen/astm/a313.md pl: https://steelequivalents.com/pl/materiały/astm/a313.md pt: https://steelequivalents.com/pt/materiais/astm/a313.md ru: https://steelequivalents.com/ru/материалы/astm/a313.md tr: https://steelequivalents.com/tr/malzemeler/astm/a313.md zh: https://steelequivalents.com/zh/材料/astm/a313.md ja: https://steelequivalents.com/ja/材料/astm/a313.md ar: https://steelequivalents.com/ar/المواد/astm/a313.md ko: https://steelequivalents.com/ko/재료/astm/a313.md pt-br: https://steelequivalents.com/pt-br/materiais/astm/a313.md hi: https://steelequivalents.com/hi/सामग्री/astm/a313.md content_hash: sha256:e69ad53349f4607de2e3a612f95193f52c21dbd2fb38a60f906785a8222203a1 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/materials/astm/a313 > Canonical URL: https://steelequivalents.com/materials/astm/a313 > 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. ASTM · United States · 18 grades # A313 The designation A313 is carried by 18 different grades. Compare them on the elements that actually differ, then open the one your print means. - *Matching grades* **18** - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - [*Category* **Special steels for aviation and aerospace · 39 grades**](/categories/special-steels-for-aviation-and-aerospace "Category: Special steels for aviation and aerospace · 39 grades") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - [*Category* **High-temperature steels / aviation variant · 12 grades**](/categories/high-temperature-steels-aviation-variant "Category: High-temperature steels / aviation variant · 12 grades") [Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry") ## Which of the 18 do you want? This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero. | Grade | Material no. | Category | Designations | Ni% | C% | Cr% | Si% | P% | Mo% | |---|---|---|---|---|---|---|---|---|---| | [X 12 CrNi 18 8](/materials/din-en/x-12-crni-18-8 "X 12 CrNi 18 8") | [1.4300](/materials/material-no/1.4300 "1.4300") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 76 | 8,00-10,0 | ≤0,12 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [1.4301](/materials/material-no/1.4301 "1.4301") | [1.4301](/materials/material-no/1.4301 "1.4301") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 170 | 8,00-10,5 | ≤0,07 | 17,5-19,5 | ≤1,00 | 0,045 | — | | [X 5 CrNi 18 12](/materials/din-en/x-5-crni-18-12 "X 5 CrNi 18 12") | [1.4303](/materials/material-no/1.4303 "1.4303") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 84 | 11,0-13,0 | ≤0,06 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [1.4310](/materials/material-no/1.4310 "1.4310") | [1.4310](/materials/material-no/1.4310 "1.4310") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 97 | 6,00-9,50 | 0,05-0,15 | 16,0-19,0 | ≤2,00 | 0,045 | ≤0,80 | | [S30400](/materials/uns/s30400 "S30400") | [1.4314](/materials/material-no/1.4314 "1.4314") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 86 | 8,50-10,5 | ≤0,07 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [S30100](/materials/uns/s30100 "S30100") | [1.4324](/materials/material-no/1.4324 "1.4324") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 52 | 7,00-9,00 | ≤0,12 | 16,0-18,0 | ≤1,00 | 0,045 | — | | [X9CrNi18-9](/materials/din-en/x9crni18-9 "X9CrNi18-9") | [1.4325](/materials/material-no/1.4325 "1.4325") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 51 | 8,00-10,0 | 0,03-0,15 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [1.4401](/materials/material-no/1.4401 "1.4401") | [1.4401](/materials/material-no/1.4401 "1.4401") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 134 | 10,0-13,0 | ≤0,07 | 16,5-18,5 | ≤1,00 | 0,045 | 2,00-2,50 | | [1.4436](/materials/material-no/1.4436 "1.4436") | [1.4436](/materials/material-no/1.4436 "1.4436") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 118 | 10,5-13,0 | ≤0,05 | 16,5-18,5 | ≤1,00 | 0,045 | 2,50-3,00 | | [1.4504](/materials/material-no/1.4504 "1.4504") | [1.4504](/materials/material-no/1.4504 "1.4504") 1.4 | [Others](/categories/others "Others") | 17 | 6,50-7,75 | ≤0,09 | 16,0-17,25 | ≤0,50 | 0,025 | — | | [1.4541](/materials/material-no/1.4541 "1.4541") | [1.4541](/materials/material-no/1.4541 "1.4541") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 175 | 9,00-12,0 | ≤0,08 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [S30347](/materials/uns/s30347 "S30347") | [1.4544](/materials/material-no/1.4544 "1.4544") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 69 | 9,00-11,5 | ≤0,08 | 17,0-19,0 | ≤1,00 | 0,035 | — | | [X5CrNiNb18-10](/materials/din-en/x5crninb18-10 "X5CrNiNb18-10") | [1.4546](/materials/material-no/1.4546 "1.4546") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 70 | 9,00-11,5 | ≤0,08 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [1.4550](/materials/material-no/1.4550 "1.4550") | [1.4550](/materials/material-no/1.4550 "1.4550") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 107 | 9,00-12,0 | ≤0,08 | 17,0-19,0 | ≤1,00 | 0,045 | — | | [S17700](/materials/uns/s17700 "S17700") | [1.4564](/materials/material-no/1.4564 "1.4564") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 15 | 6,50-7,75 | ≤0,09 | 16,0-18,0 | ≤1,00 | 0,04 | — | | [1.4568](/materials/material-no/1.4568 "1.4568") | [1.4568](/materials/material-no/1.4568 "1.4568") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 42 | 6,50-7,80 | ≤0,09 | 16,0-18,0 | ≤0,70 | 0,04 | — | | [X6CrNiSi18-13-4](/materials/din-en/x6crnisi18-13-4 "X6CrNiSi18-13-4") | [1.4884](/materials/material-no/1.4884 "1.4884") 1.4 | [Others](/categories/others "Others") | 34 | 11,5-15,0 | ≤0,08 | 15,0-20,0 | 3,00-5,00 | 0,045 | — | | [S31600](/materials/uns/s31600 "S31600") | [1.4984](/materials/material-no/1.4984 "1.4984") 1.4 | [High-temperature steels / aviation variant](/categories/high-temperature-steels-aviation-variant "High-temperature steels / aviation variant") | 64 | 15,5-17,5 | 0,04-0,10 | 15,5-17,5 | 0,30-0,60 | 0,045 | 1,60-2,00 | ## Not sure which one your print means? 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 "Inquiry")