--- title: "SUS301L — Stainless steels" description: "SUS301L in JIS: material number 1.4318, also listed as X2CrNiN18-7. Category: Stainless steels. Designations recorded for this grade: 7." canonical: https://steelequivalents.com/materials/jis/sus301l language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/jis/sus301l.md cs: https://steelequivalents.com/cs/materiály/jis/sus301l.md de: https://steelequivalents.com/de/werkstoffe/jis/sus301l.md es: https://steelequivalents.com/es/materiales/jis/sus301l.md fr: https://steelequivalents.com/fr/matériaux/jis/sus301l.md hu: https://steelequivalents.com/hu/anyagok/jis/sus301l.md it: https://steelequivalents.com/it/materiali/jis/sus301l.md nl: https://steelequivalents.com/nl/materialen/jis/sus301l.md pl: https://steelequivalents.com/pl/materiały/jis/sus301l.md pt: https://steelequivalents.com/pt/materiais/jis/sus301l.md ru: https://steelequivalents.com/ru/материалы/jis/sus301l.md tr: https://steelequivalents.com/tr/malzemeler/jis/sus301l.md zh: https://steelequivalents.com/zh/材料/jis/sus301l.md ja: https://steelequivalents.com/ja/材料/jis/sus301l.md ar: https://steelequivalents.com/ar/المواد/jis/sus301l.md ko: https://steelequivalents.com/ko/재료/jis/sus301l.md pt-br: https://steelequivalents.com/pt-br/materiais/jis/sus301l.md hi: https://steelequivalents.com/hi/सामग्री/jis/sus301l.md content_hash: sha256:ed4e8bb153b8a4f59fd8fa95f5c0a71d20e602782a98aa562b0069dc09c3c142 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/jis/sus301l > Canonical URL: https://steelequivalents.com/materials/jis/sus301l > 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. JIS · Japan · 7 designations # SUS301L SUS301L is a designation in JIS for the material held under material number 1.4318, also listed as X2CrNiN18-7. It is a material in the category Stainless steels. We list 7 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, AFNOR and JIS. - [*Material no.* **1.4318**](/materials/material-no/1.4318 "Material no.: 1.4318") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **7** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=7c1f32db-39df-4994-af37-8b09f8192fe1&designation=d1d1e38d-5fb0-47ca-815e-c0497e6f567d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/jis/sus301l.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X2CrNiN18-7 This grade’s own name](/materials/din-en/x2crnin18-7 "DIN / EN X2CrNiN18-7") - [UNS S30103 This grade’s own name](/materials/uns/s30103 "UNS S30103") - [AISI / SAE 301LN This grade’s own name](/materials/aisi-sae/301ln "AISI / SAE 301LN") ## 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 7 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 - [X2CrNiN18-7 This grade’s own name](/materials/din-en/x2crnin18-7 "DIN / EN X2CrNiN18-7") UNS United States · 2 - [S30103 This grade’s own name](/materials/uns/s30103 "UNS S30103") - [S30153 This grade’s own name](/materials/uns/s30153 "UNS S30153") AISI / SAE United States · 1 - [301LN This grade’s own name](/materials/aisi-sae/301ln "AISI / SAE 301LN") AFNOR France · 1 - [Z3CN18-07Az Indicative](/materials/afnor/z3cn18-07az "AFNOR Z3CN18-07Az") JIS Japan · 2 - [SUS 301 LN Indicative](/materials/jis/sus-301-ln "JIS SUS 301 LN") - **SUS301L Indicative** 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 Cr Ni Mn Iron — the balance, never listed by a standard — 72.3 % Cr — 17.5 % Ni — 7 % Mn — 2 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.03 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 16.5–18.5 | | Ni | 6–8 | | N | 0.1–0.2 | 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 | ≤0,030 | — | 0.030 | Max | | N | 0,10-0,20 | 0.100 | 0.200 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 16,5-18,5 | 16.500 | 18.500 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 6,00-8,00 | 6.000 | 8.000 | 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 8 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 | 550 | 215 | 45 | — | — | — | | Hot-rolled | — | — | — | 207 | 95 | 218 | 1 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition. 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. ## Heat treatment Supply condition - Annealing Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMzA5MjM_ "Source: www.caishuku.com") ## 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 / Ni 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. [X5CrNi17-7 1.4319 Cr 16,0-18,0 · Ni 6,00-8,00 - ΔCr 0.50 - ΔNi 0.00 - 23 designations](/materials/din-en/x5crni17-7 "X5CrNi17-7")[1.4568 1.4568 Cr 16,0-18,0 · Ni 6,50-7,80 - ΔCr 0.50 - ΔNi 0.15 - 42 designations](/materials/material-no/1.4568 "1.4568")[1.4310 1.4310 Cr 16,0-19,0 · Ni 6,00-9,50 - ΔCr 0.00 - ΔNi 0.75 - 97 designations](/materials/material-no/1.4310 "1.4310")[X 12 CrNi 18 8 1.4300 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.50 - ΔNi 2.00 - 76 designations](/materials/din-en/x-12-crni-18-8 "X 12 CrNi 18 8")[1.4305 1.4305 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.50 - ΔNi 2.00 - 77 designations](/materials/material-no/1.4305 "1.4305")[X9CrNi18-9 1.4325 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.50 - ΔNi 2.00 - 51 designations](/materials/din-en/x9crni18-9 "X9CrNi18-9") ## 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=7c1f32db-39df-4994-af37-8b09f8192fe1&designation=d1d1e38d-5fb0-47ca-815e-c0497e6f567d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/jis/sus301l.pdf "Datasheet as PDF")