--- title: "X2CrMoTi18-2 — Stainless steels" description: "X2CrMoTi18-2: 33 equivalent designations across 10 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/x2crmoti18-2 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/x2crmoti18-2.md cs: https://steelequivalents.com/cs/materiály/din-en/x2crmoti18-2.md de: https://steelequivalents.com/de/werkstoffe/din-en/x2crmoti18-2.md es: https://steelequivalents.com/es/materiales/din-en/x2crmoti18-2.md fr: https://steelequivalents.com/fr/matériaux/din-en/x2crmoti18-2.md hu: https://steelequivalents.com/hu/anyagok/din-en/x2crmoti18-2.md it: https://steelequivalents.com/it/materiali/din-en/x2crmoti18-2.md nl: https://steelequivalents.com/nl/materialen/din-en/x2crmoti18-2.md pl: https://steelequivalents.com/pl/materiały/din-en/x2crmoti18-2.md pt: https://steelequivalents.com/pt/materiais/din-en/x2crmoti18-2.md ru: https://steelequivalents.com/ru/материалы/din-en/x2crmoti18-2.md tr: https://steelequivalents.com/tr/malzemeler/din-en/x2crmoti18-2.md zh: https://steelequivalents.com/zh/材料/din-en/x2crmoti18-2.md ja: https://steelequivalents.com/ja/材料/din-en/x2crmoti18-2.md ar: https://steelequivalents.com/ar/المواد/din-en/x2crmoti18-2.md ko: https://steelequivalents.com/ko/재료/din-en/x2crmoti18-2.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/x2crmoti18-2.md hi: https://steelequivalents.com/hi/सामग्री/din-en/x2crmoti18-2.md content_hash: sha256:7615bf4edd09aa7d293dfb734f288e6bcc18405f18d0084098b3da1c4d994a84 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/x2crmoti18-2 > Canonical URL: https://steelequivalents.com/materials/din-en/x2crmoti18-2 > 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 · 33 designations # X2CrMoTi18-2 X2CrMoTi18-2 is a material in the category [Stainless steels](/categories/stainless-steels "Stainless steels"), held under material number 1.4521. We list 32 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, AFNOR, UNE, JIS, GB, SS and STAS. Its recorded composition includes C ≤ 0.025%, Si ≤ 1%, Cr 17–20%, Mn ≤ 1% and Mo 1.8–2.5%. Recorded mechanical properties include Rm 410 N/mm², Re 245 N/mm², A 20% and HB 217. Its recorded density is 7.7 g/cm³. - [*Material no.* **1.4521**](/materials/material-no/1.4521 "Material no.: 1.4521") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **33** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=79757ba2-576a-4e91-9de8-9e8012a9d845&designation=cf56d5b6-64ef-4529-bdee-85bd8988ed89 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x2crmoti18-2.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS S44300 This grade’s own name · 2 grades on that route](/materials/uns/s44300 "UNS S44300") - [AISI / SAE 443 This grade’s own name · 2 grades on that route](/materials/aisi-sae/443 "AISI / SAE 443") ## About Stainless steels Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 33 designations · 10 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 · 3 - [1.4521 Indicative](/materials/material-no/1.4521 "DIN / EN 1.4521") - [X1CrMoTi182 Indicative](/materials/din-en/x1crmoti182 "DIN / EN X1CrMoTi182") - **X2CrMoTi18-2 This grade’s own name** UNS United States · 3 - [S44300 This grade’s own name](/materials/uns/s44300 "UNS S44300") - [S44400 This grade’s own name](/materials/uns/s44400 "UNS S44400") - [S44401 Indicative](/materials/uns/s44401 "UNS S44401") AISI / SAE United States · 4 - [443 This grade’s own name](/materials/aisi-sae/443 "AISI / SAE 443") - [444 This grade’s own name](/materials/aisi-sae/444 "AISI / SAE 444") - [S44300 Indicative](/materials/uns/s44300 "AISI / SAE S44300") - [S44400 Indicative](/materials/uns/s44400 "AISI / SAE S44400") ASTM United States · 11 - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A213 Indicative](/materials/astm/a213 "ASTM A213") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A268 Indicative](/materials/astm/a268 "ASTM A268") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [A580 Indicative](/materials/astm/a580 "ASTM A580") - [A791 Indicative](/materials/astm/a791 "ASTM A791") - [A803 Indicative](/materials/astm/a803 "ASTM A803") AFNOR France · 4 - [Z3CAT18 Indicative](/materials/afnor/z3cat18 "AFNOR Z3CAT18") - [Z3CDFT18-02 Indicative](/materials/afnor/z3cdft18-02 "AFNOR Z3CDFT18-02") - [Z3CDT18-02 Indicative](/materials/afnor/z3cdt18-02 "AFNOR Z3CDT18-02") - [Z3CDT18-2 Indicative](/materials/afnor/z3cdt18-2 "AFNOR Z3CDT18-2") UNE Spain · 1 - [F.3123 Indicative](/materials/une/f-3123 "UNE F.3123") JIS Japan · 3 - [SUS 444TB Indicative](/materials/jis/sus444tb "JIS SUS 444TB") - [SUS 444TP Indicative](/materials/jis/sus444tp "JIS SUS 444TP") - [SUS444 Indicative](/materials/jis/sus444 "JIS SUS444") GB China · 2 - [00Cr18Mo2 Indicative](/materials/gb/00cr18mo2 "GB 00Cr18Mo2") - [019Cr19Mo2NbTi Indicative](/materials/gb/019cr19mo2nbti "GB 019Cr19Mo2NbTi") SS Sweden · 1 - [2326 Indicative](/materials/ss/2326 "SS 2326") STAS Romania · 1 - [2TiMoCr180 Indicative](/materials/stas/2timocr180 "STAS 2TiMoCr180") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Cr Mo Si Iron — the balance, never listed by a standard — 77.2 % Cr — 18.5 % Mo — 2.2 % Si — 1 % Traces & impurities · 1.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.025 | | Si | ≤ 1 | | Mn | ≤ 1 | | P | 0.04 | | S | 0.015 | | Cr | 17–20 | | Mo | 1.8–2.5 | | Ti | 4x(C+N)+0,15≤0,80 | | N | 0.03 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Titanium Nitrogen 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 | |---|---|---|---|---| | C | ≤0,025 | — | 0.025 | Max | | N | 0,03 | 0.030 | 0.030 | Exact | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Ti | 4x(C+N)+0,15≤0,80 | — | 0.800 | No numeric bound | | Cr | 17,0-20,0 | 17.000 | 20.000 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Mo | 1,80-2,50 | 1.800 | 2.500 | 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 7,7 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. ## Properties by condition 1 conditions · 6 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | HB | HRB | HV | |---|---|---|---|---|---|---| | Plate/Sheet Hot-rolled | 410 | 245 | 20 | — | — | — | | Hot-rolled | — | — | — | 217 | 96 | 230 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Cr / Mo 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. [X2CrNiMo19-12 1.4430 Cr 17,2-19,8 · Mo 2,50-3,00 - ΔCr 0.00 - ΔMo 0.60 - 2 designations](/materials/din-en/x2crnimo19-12 "X2CrNiMo19-12")[X2CrMoNb18-2 1.4522 Cr 17,0-19,0 · Mo 1,80-2,30 - ΔCr 0.50 - ΔMo 0.10 - 3 designations](/materials/din-en/x2crmonb18-2 "X2CrMoNb18-2")[X1CrNiMoTi18-13-2 1.4561 Cr 17,0-18,5 · Mo 2,00-2,50 - ΔCr 0.75 - ΔMo 0.10 - 3 designations](/materials/din-en/x1crnimoti18-13-2 "X1CrNiMoTi18-13-2")[1.4401 1.4401 Cr 16,5-18,5 · Mo 2,00-2,50 - ΔCr 1.00 - ΔMo 0.10 - 134 designations](/materials/material-no/1.4401 "1.4401")[1.4406 1.4406 Cr 16,5-18,5 · Mo 2,00-2,50 - ΔCr 1.00 - ΔMo 0.10 - 46 designations](/materials/material-no/1.4406 "1.4406")[1.4435 1.4435 Cr 17,0-19,0 · Mo 2,50-3,00 - ΔCr 0.50 - ΔMo 0.60 - 99 designations](/materials/material-no/1.4435 "1.4435") ## 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=79757ba2-576a-4e91-9de8-9e8012a9d845&designation=cf56d5b6-64ef-4529-bdee-85bd8988ed89 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x2crmoti18-2.pdf "Datasheet as PDF")