--- title: "X3NiCr18-16 — Others" description: "X3NiCr18-16: 12 equivalent designations across 5 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/x3nicr18-16 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/x3nicr18-16.md cs: https://steelequivalents.com/cs/materiály/din-en/x3nicr18-16.md de: https://steelequivalents.com/de/werkstoffe/din-en/x3nicr18-16.md es: https://steelequivalents.com/es/materiales/din-en/x3nicr18-16.md fr: https://steelequivalents.com/fr/matériaux/din-en/x3nicr18-16.md hu: https://steelequivalents.com/hu/anyagok/din-en/x3nicr18-16.md it: https://steelequivalents.com/it/materiali/din-en/x3nicr18-16.md nl: https://steelequivalents.com/nl/materialen/din-en/x3nicr18-16.md pl: https://steelequivalents.com/pl/materiały/din-en/x3nicr18-16.md pt: https://steelequivalents.com/pt/materiais/din-en/x3nicr18-16.md ru: https://steelequivalents.com/ru/материалы/din-en/x3nicr18-16.md tr: https://steelequivalents.com/tr/malzemeler/din-en/x3nicr18-16.md zh: https://steelequivalents.com/zh/材料/din-en/x3nicr18-16.md ja: https://steelequivalents.com/ja/材料/din-en/x3nicr18-16.md ar: https://steelequivalents.com/ar/المواد/din-en/x3nicr18-16.md ko: https://steelequivalents.com/ko/재료/din-en/x3nicr18-16.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/x3nicr18-16.md hi: https://steelequivalents.com/hi/सामग्री/din-en/x3nicr18-16.md content_hash: sha256:15d085aa23c4041bf9968ab4ad200d8cc6db0beea90d98ffdf03f748feccedf5 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/x3nicr18-16 > Canonical URL: https://steelequivalents.com/materials/din-en/x3nicr18-16 > 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 · 12 designations # X3NiCr18-16 X3NiCr18-16 is a material in the category Others, held under material number 1.4389. We list 11 designations recorded for this grade, in the standards UNS, AISI / SAE, ASTM and JIS. Its recorded composition includes C ≤ 0.04%, Si ≤ 1%, Cr 15–17%, Mn ≤ 2% and Ni 17–19%. Recorded mechanical properties include Rm 460–690 N/mm², A 20–25% and Z 65%. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.4389**](/materials/material-no/1.4389 "Material no.: 1.4389") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **12** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3985aad1-abdf-4067-b5a1-33d347378d40&designation=4fe7d531-b829-45de-90cd-fdbfcce2deb8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x3nicr18-16.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS S38400 This grade’s own name](/materials/uns/s38400 "UNS S38400") - [AISI / SAE 384 This grade’s own name](/materials/aisi-sae/384 "AISI / SAE 384") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 12 designations · 5 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 · 1 - **X3NiCr18-16 This grade’s own name** UNS United States · 1 - [S38400 This grade’s own name](/materials/uns/s38400 "UNS S38400") AISI / SAE United States · 2 - [30384 Indicative](/materials/aisi-sae/30384 "AISI / SAE 30384") - [384 This grade’s own name](/materials/aisi-sae/384 "AISI / SAE 384") ASTM United States · 7 - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [F593 Indicative](/materials/astm/f593 "ASTM F593") - [F594 Indicative](/materials/astm/f594 "ASTM F594") - [F738 Indicative](/materials/astm/f738 "ASTM F738") - [F837 Indicative](/materials/astm/f837 "ASTM F837") - [F879 Indicative](/materials/astm/f879 "ASTM F879") - [F880 Indicative](/materials/astm/f880 "ASTM F880") JIS Japan · 1 - [SUS384 Indicative](/materials/jis/sus384 "JIS SUS384") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Ni Cr Mn Iron — the balance, never listed by a standard — 62.4 % Ni — 18 % Cr — 16 % Mn — 2 % Traces & impurities · 1.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.04 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.03 | | Cr | 15–17 | | Ni | 17–19 | | N | 0.5 — Unusual | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 | ≤0,04 | — | 0.040 | Max | | N | 0,5 | 0.500 | 0.500 | Exact | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 15,0-17,0 | 15.000 | 17.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 17,0-19,0 | 17.000 | 19.000 | 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: Mo. ## Physical & mechanical properties Density 7,85 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 · 3 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | A% | Z% | |---|---|---|---| | Wires | 460 – 690 | 20 – 25 | 65 | 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 Ni / Cr 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. [X 2 NiCr 18 16 1.4321 Ni 17,5-18,5 · Cr 15,5-16,5 - ΔNi 0.00 - ΔCr 0.00 - 12 designations](/materials/din-en/x-2-nicr-18-16 "X 2 NiCr 18 16")[X2CrNiMo18-16-5 1.4440 Ni 16,0-19,0 · Cr 17,0-20,0 - ΔNi 0.50 - ΔCr 2.50 - 3 designations](/materials/din-en/x2crnimo18-16-5 "X2CrNiMo18-16-5")[X3CrNiMo18-16-5 1.4476 Ni 15,0-17,0 · Cr 16,0-19,0 - ΔNi 2.00 - ΔCr 1.50 - 1 designations](/materials/din-en/x3crnimo18-16-5 "X3CrNiMo18-16-5")[X3CrNiMnMoN19-16 1.4453 Ni 15,0-17,5 · Cr 16,0-20,0 - ΔNi 1.75 - ΔCr 2.00 - 1 designations](/materials/din-en/x3crnimnmon19-16 "X3CrNiMnMoN19-16")[X2CrNiMoN18-15-5 1.4483 Ni 13,5-17,5 · Cr 17,0-20,0 - ΔNi 2.50 - ΔCr 2.50 - 3 designations](/materials/din-en/x2crnimon18-15-5 "X2CrNiMoN18-15-5") ## 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=3985aad1-abdf-4067-b5a1-33d347378d40&designation=4fe7d531-b829-45de-90cd-fdbfcce2deb8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x3nicr18-16.pdf "Datasheet as PDF")