--- title: "X12CrMnNiN17-7-5 — Others" description: "X12CrMnNiN17-7-5: 27 equivalent designations across 11 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/x12crmnnin17-7-5 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/x12crmnnin17-7-5.md cs: https://steelequivalents.com/cs/materiály/din-en/x12crmnnin17-7-5.md de: https://steelequivalents.com/de/werkstoffe/din-en/x12crmnnin17-7-5.md es: https://steelequivalents.com/es/materiales/din-en/x12crmnnin17-7-5.md fr: https://steelequivalents.com/fr/matériaux/din-en/x12crmnnin17-7-5.md hu: https://steelequivalents.com/hu/anyagok/din-en/x12crmnnin17-7-5.md it: https://steelequivalents.com/it/materiali/din-en/x12crmnnin17-7-5.md nl: https://steelequivalents.com/nl/materialen/din-en/x12crmnnin17-7-5.md pl: https://steelequivalents.com/pl/materiały/din-en/x12crmnnin17-7-5.md pt: https://steelequivalents.com/pt/materiais/din-en/x12crmnnin17-7-5.md ru: https://steelequivalents.com/ru/материалы/din-en/x12crmnnin17-7-5.md tr: https://steelequivalents.com/tr/malzemeler/din-en/x12crmnnin17-7-5.md zh: https://steelequivalents.com/zh/材料/din-en/x12crmnnin17-7-5.md ja: https://steelequivalents.com/ja/材料/din-en/x12crmnnin17-7-5.md ar: https://steelequivalents.com/ar/المواد/din-en/x12crmnnin17-7-5.md ko: https://steelequivalents.com/ko/재료/din-en/x12crmnnin17-7-5.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/x12crmnnin17-7-5.md hi: https://steelequivalents.com/hi/सामग्री/din-en/x12crmnnin17-7-5.md content_hash: sha256:4ef8d962ebac5d341362a958ac91e9431ff115ec195c6e434367bf71a1c55a4c 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/din-en/x12crmnnin17-7-5 > Canonical URL: https://steelequivalents.com/materials/din-en/x12crmnnin17-7-5 > 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 · 27 designations # X12CrMnNiN17-7-5 X12CrMnNiN17-7-5 is a material in the category Others, held under material number 1.4372. We list 26 designations recorded for this grade, in the standards UNS, AISI / SAE, ASTM, AFNOR, ISO, JIS, GB, GOST, PN and KS. Its recorded composition includes C ≤ 0.15%, Si ≤ 1%, Cr 16–18%, Mn 5.5–7.5% and Ni 3.5–5.5%. Recorded mechanical properties include Rm 520 N/mm², Re 275 N/mm², A 40%, HB 241–260 and Z 45%; these figures vary with the delivery condition and dimension. Its recorded density is 7.85 g/cm³. Further recorded physical values: E 197 GPa, λ 15 W/(m·K), α 15.7 ·10⁻⁶/K, cp 500 J/(kg·K) and ρ el. 700 nΩ·m. - [*Material no.* **1.4372**](/materials/material-no/1.4372 "Material no.: 1.4372") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **27** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=9ca354be-c4ff-46a6-b898-1c9eb57ca62f&designation=cf797db3-f8f3-4fee-8fb1-90f831e01f8b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x12crmnnin17-7-5.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS S20100 This grade’s own name · 2 grades on that route](/materials/uns/s20100 "UNS S20100") - [AISI / SAE 201 This grade’s own name · 2 grades on that route](/materials/aisi-sae/201 "AISI / SAE 201") ## 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 27 designations · 11 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 - **X12CrMnNiN17-7-5 This grade’s own name** UNS United States · 2 - [S20100 This grade’s own name](/materials/uns/s20100 "UNS S20100") - [S20200 Indicative](/materials/uns/s20200 "UNS S20200") AISI / SAE United States · 4 - [201 This grade’s own name](/materials/aisi-sae/201 "AISI / SAE 201") - [202 Indicative](/materials/aisi-sae/202 "AISI / SAE 202") - [20201 Indicative](/materials/aisi-sae/20201 "AISI / SAE 20201") - [S20100 Indicative](/materials/uns/s20100 "AISI / SAE S20100") ASTM United States · 8 - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A213 Indicative](/materials/astm/a213 "ASTM A213") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A666 Indicative](/materials/astm/a666 "ASTM A666") AFNOR France · 1 - [Z12CMN17-07Az Indicative](/materials/afnor/z12cmn17-07az "AFNOR Z12CMN17-07Az") ISO International · 1 - [X12CrMnNiN18-9-5 Indicative](/materials/din-en/x12crmnnin18-9-5 "ISO X12CrMnNiN18-9-5") JIS Japan · 2 - [SUS201 Indicative](/materials/jis/sus201 "JIS SUS201") - [SUS202 Indicative](/materials/jis/sus202 "JIS SUS202") GB China · 3 - [12Cr17Mn6Ni5N Indicative](/materials/gb/12cr17mn6ni5n "GB 12Cr17Mn6Ni5N") - [12Cr18Mn9Ni5N Indicative](/materials/gb/12cr18mn9ni5n "GB 12Cr18Mn9Ni5N") - [1Cr17Mn6Ni5N Indicative](/materials/gb/1cr17mn6ni5n "GB 1Cr17Mn6Ni5N") GOST Russia / CIS · 3 - [12Ch17G9AN4 Indicative](/materials/gost/12ch17g9an4 "GOST 12Ch17G9AN4") - [12Х17Г9АН4 Indicative](/materials/gost/12kh17g9an4 "GOST 12Х17Г9АН4") - [EI878 Indicative](/materials/gost/ei878 "GOST EI878") PN Poland · 1 - [1H17N4G9 Indicative](/materials/pn/1h17n4g9 "PN 1H17N4G9") KS South Korea · 1 - [STS201 Indicative](/materials/ks/sts201 "KS STS201") 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 Mn Ni Iron — the balance, never listed by a standard — 70.6 % Cr — 17 % Mn — 6.5 % Ni — 4.5 % Traces & impurities · 1.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 1 | | Mn | 5.5–7.5 — Unusual | | P | 0.045 | | S | 0.015 | | Cr | 16–18 | | Ni | 3.5–5.5 | | N | 0.05–0.25 | 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 | ≤0,15 | — | 0.150 | Max | | N | 0,05-0,25 | 0.050 | 0.250 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 16,0-18,0 | 16.000 | 18.000 | Range | | Mn | 5,50-7,50 | 5.500 | 7.500 | Range | | Ni | 3,50-5,50 | 3.500 | 5.500 | 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: Mo. ## Physical & mechanical properties Density 7,85 g/cm³ Exact Elastic modulus 197 GPa Exact Thermal expansion coefficient 15.7 10^-6/K Exact Thermal conductivity 15 W/(m·K) Exact Specific heat capacity 0.5 J/(kg·K) Exact Electrical resistivity 0.7 nΩ·m 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 2 conditions · 5 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | Z% | |---|---|---|---|---| | Bars/Rods | 520 | 275 | 40 | 45 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 260 | 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 - Solution annealing d≤180 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/azhlNWIxMjgxNw__ "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 / Mn 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. [X8CrMnCuN17-8-3 1.4597 Cr 16,0-18,0 · Mn 6,00-8,50 - ΔCr 0.00 - ΔMn 0.75 - 3 designations](/materials/din-en/x8crmncun17-8-3 "X8CrMnCuN17-8-3")[X5CrMnN17-8 1.4154 Cr 15,0-18,0 · Mn 5,00-10,0 - ΔCr 0.50 - ΔMn 1.00 - 1 designations](/materials/din-en/x5crmnn17-8 "X5CrMnN17-8")[X9CrMnNiCu17-8-5-2 1.4618 Cr 16,5-18,5 · Mn 5,50-9,50 - ΔCr 0.50 - ΔMn 1.00 - 2 designations](/materials/din-en/x9crmnnicu17-8-5-2 "X9CrMnNiCu17-8-5-2")[X11CrNiMnN19-8-6 1.4369 Cr 17,5-19,5 · Mn 5,00-7,50 - ΔCr 1.50 - ΔMn 0.25 - 1 designations](/materials/din-en/x11crnimnn19-8-6 "X11CrNiMnN19-8-6")[X8CrMnNi19-6-3 1.4376 Cr 17,0-20,5 · Mn 5,00-8,00 - ΔCr 1.75 - ΔMn 0.00 - 1 designations](/materials/din-en/x8crmnni19-6-3 "X8CrMnNi19-6-3")[X3CrNiMnMoN19-16 1.4453 Cr 16,0-20,0 · Mn 4,00-7,50 - ΔCr 1.00 - ΔMn 0.75 - 1 designations](/materials/din-en/x3crnimnmon19-16 "X3CrNiMnMoN19-16") ## 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=9ca354be-c4ff-46a6-b898-1c9eb57ca62f&designation=cf797db3-f8f3-4fee-8fb1-90f831e01f8b "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x12crmnnin17-7-5.pdf "Datasheet as PDF")