--- title: "CrNi17/7 — Stainless steels" description: "CrNi17/7 in BS: material number 1.4310, also listed as X10CrNi18-8. Category: Stainless steels. Designations recorded for this grade: 97." canonical: https://steelequivalents.com/materials/bs/crni17-7 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/bs/crni17-7.md cs: https://steelequivalents.com/cs/materiály/bs/crni17-7.md de: https://steelequivalents.com/de/werkstoffe/bs/crni17-7.md es: https://steelequivalents.com/es/materiales/bs/crni17-7.md fr: https://steelequivalents.com/fr/matériaux/bs/crni17-7.md hu: https://steelequivalents.com/hu/anyagok/bs/crni17-7.md it: https://steelequivalents.com/it/materiali/bs/crni17-7.md nl: https://steelequivalents.com/nl/materialen/bs/crni17-7.md pl: https://steelequivalents.com/pl/materiały/bs/crni17-7.md pt: https://steelequivalents.com/pt/materiais/bs/crni17-7.md ru: https://steelequivalents.com/ru/материалы/bs/crni17-7.md tr: https://steelequivalents.com/tr/malzemeler/bs/crni17-7.md zh: https://steelequivalents.com/zh/材料/bs/crni17-7.md ja: https://steelequivalents.com/ja/材料/bs/crni17-7.md ar: https://steelequivalents.com/ar/المواد/bs/crni17-7.md ko: https://steelequivalents.com/ko/재료/bs/crni17-7.md pt-br: https://steelequivalents.com/pt-br/materiais/bs/crni17-7.md hi: https://steelequivalents.com/hi/सामग्री/bs/crni17-7.md content_hash: sha256:3795e58a1ce6c3e693b9cb866bff6760a527815c21dffa6b8bb9b01d220073d2 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/bs/crni17-7 > Canonical URL: https://steelequivalents.com/materials/bs/crni17-7 > 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. BS · United Kingdom · 97 designations # CrNi17/7 CrNi17/7 is a designation in BS for the material held under material number 1.4310, also listed as X10CrNi18-8. It is a material in the category Stainless steels. We list 97 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, SAE AMS, JIS, GB, GOST, UNI, SS, ČSN, STN, PN, ABNT NBR and SRPS. - [*Material no.* **1.4310**](/materials/material-no/1.4310 "Material no.: 1.4310") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **97** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=398fb60d-5ae9-4d8a-8b92-b5fbe85548ec&designation=95a375ae-d2e0-413f-b3ae-1d0b4bea9ba4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/crni17-7.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X10CrNi18-8 This grade’s own name](/materials/din-en/x10crni18-8 "DIN / EN X10CrNi18-8") - [UNS S30100 This grade’s own name · 3 grades on that route](/materials/uns/s30100 "UNS S30100") - [AISI / SAE 301 This grade’s own name · 4 grades on that route](/materials/aisi-sae/301 "AISI / SAE 301") ## 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 97 designations · 19 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 - [1.4310 Indicative](/materials/material-no/1.4310 "DIN / EN 1.4310") - [X 12 CrNi 17 7 This grade’s own name Withdrawn](/materials/din-en/x12crni17-7 "DIN / EN X 12 CrNi 17 7") - [X10CrNi18-8 This grade’s own name](/materials/din-en/x10crni18-8 "DIN / EN X10CrNi18-8") UNS United States · 3 - [S30100 This grade’s own name](/materials/uns/s30100 "UNS S30100") - [S30200 This grade’s own name](/materials/uns/s30200 "UNS S30200") - [S45500 Indicative](/materials/uns/s45500 "UNS S45500") AISI / SAE United States · 8 - [301 This grade’s own name](/materials/aisi-sae/301 "AISI / SAE 301") - [302 This grade’s own name](/materials/aisi-sae/302 "AISI / SAE 302") - [30301 Indicative](/materials/aisi-sae/30301 "AISI / SAE 30301") - [30302 Indicative](/materials/aisi-sae/30302 "AISI / SAE 30302") - [J 230 (1994) Indicative](/materials/aisi-sae/j-230-1994 "AISI / SAE J 230 (1994)") - [J230 This grade’s own name](/materials/aisi-sae/j230 "AISI / SAE J230") - [S30100 Indicative](/materials/uns/s30100 "AISI / SAE S30100") - [S30200 Indicative](/materials/uns/s30200 "AISI / SAE S30200") ASTM United States · 20 - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A264 Indicative](/materials/astm/a264 "ASTM A264") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A313 Indicative](/materials/astm/a313 "ASTM A313") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A368 Indicative](/materials/astm/a368 "ASTM A368") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A478 Indicative](/materials/astm/a478 "ASTM A478") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A492 Indicative](/materials/astm/a492 "ASTM A492") - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [A511 Indicative](/materials/astm/a511 "ASTM A511") - [A554 Indicative](/materials/astm/a554 "ASTM A554") - [A580 Indicative](/materials/astm/a580 "ASTM A580") - [A666 Indicative](/materials/astm/a666 "ASTM A666") - [F1669 Indicative](/materials/astm/f1669 "ASTM F1669") - [F2215 Indicative](/materials/astm/f2215 "ASTM F2215") - [F599 Indicative](/materials/astm/f599 "ASTM F599") - [F899 Indicative](/materials/astm/f899 "ASTM F899") BS United Kingdom · 5 - [301 S 22 Indicative](/materials/bs/301-s-22 "BS 301 S 22") - [301S21 Indicative](/materials/bs/301s21 "BS 301S21") - [302S25 Indicative](/materials/bs/302s25 "BS 302S25") - [302S26 Indicative](/materials/bs/302s26 "BS 302S26") - **CrNi17/7 Indicative** AFNOR France · 5 - [Z11CN17-08 Indicative](/materials/afnor/z11cn17-08 "AFNOR Z11CN17-08") - [Z11CN18-08 Indicative](/materials/afnor/z11cn18-08 "AFNOR Z11CN18-08") - [Z12CN17.07 Indicative](/materials/afnor/z12cn17-07 "AFNOR Z12CN17.07") - [Z12CN18-09 Indicative](/materials/afnor/z12cn18-09 "AFNOR Z12CN18-09") - [Z12CN18.08 Indicative](/materials/afnor/z12cn18-08 "AFNOR Z12CN18.08") UNE Spain · 3 - [F-3507 Indicative](/materials/une/f-3507 "UNE F-3507") - [F.3517 Indicative](/materials/une/f-3517 "UNE F.3517") - [X10CrNi18-9 Indicative](/materials/une/x10crni18-9 "UNE X10CrNi18-9") ISO International · 1 - [X9CrNi18-8 Indicative](/materials/iso/x9crni18-8 "ISO X9CrNi18-8") SAE AMS United States / Aerospace · 22 - [5358 Indicative](/materials/ams/5358 "SAE AMS 5358") - [5500 Indicative](/materials/ams/5500 "SAE AMS 5500") - [5515 Indicative](/materials/ams/5515 "SAE AMS 5515") - [5516 Indicative](/materials/ams/5516 "SAE AMS 5516") - [5517 Indicative](/materials/ams/5517 "SAE AMS 5517") - [5518 Indicative](/materials/ams/5518 "SAE AMS 5518") - [5519 Indicative](/materials/ams/5519 "SAE AMS 5519") - [5600 Indicative](/materials/ams/5600 "SAE AMS 5600") - [5617 Indicative bar](/materials/ams/5617 "SAE AMS 5617") - [5636 Indicative](/materials/ams/5636 "SAE AMS 5636") - [5637 Indicative](/materials/ams/5637 "SAE AMS 5637") - [5688 Indicative](/materials/ams/5688 "SAE AMS 5688") - [5693 Indicative](/materials/ams/5693 "SAE AMS 5693") - [5866 Indicative](/materials/ams/5866 "SAE AMS 5866") - [5901 Indicative](/materials/ams/5901 "SAE AMS 5901") - [5902 Indicative](/materials/ams/5902 "SAE AMS 5902") - [5903 Indicative](/materials/ams/5903 "SAE AMS 5903") - [5904 Indicative](/materials/ams/5904 "SAE AMS 5904") - [5905 Indicative](/materials/ams/5905 "SAE AMS 5905") - [5906 Indicative](/materials/ams/5906 "SAE AMS 5906") - [6693 Indicative](/materials/ams/6693 "SAE AMS 6693") - [7241 Indicative](/materials/ams/7241 "SAE AMS 7241") JIS Japan · 5 - [SUS 301 Indicative](/materials/jis/sus301 "JIS SUS 301") - [SUS 301-CSP Indicative](/materials/jis/sus301-csp "JIS SUS 301-CSP") - [SUS 302 Indicative](/materials/jis/sus302 "JIS SUS 302") - [SUS 302FB Indicative](/materials/jis/sus302fb "JIS SUS 302FB") - [SUS301J1 Indicative](/materials/jis/sus301j1 "JIS SUS301J1") GB China · 3 - [1Cr17Ni7 Indicative](/materials/gb/1cr17ni7 "GB 1Cr17Ni7") - [1Cr18Ni9 Indicative](/materials/gb/1cr18ni9 "GB 1Cr18Ni9") - [Cr17Ni7 Indicative](/materials/gb/cr17ni7 "GB Cr17Ni7") GOST Russia / CIS · 9 - [07KH16N6 Indicative](/materials/gost/07kh16n6 "GOST 07KH16N6") - [07X16H6 Indicative](/materials/gost/07x16h6 "GOST 07X16H6") - [07Х16Н6 Indicative](/materials/gost/07kh16n6 "GOST 07Х16Н6") - [12Ch18N9 Indicative](/materials/gost/12ch18n9 "GOST 12Ch18N9") - [12Kh18N9 Indicative](/materials/gost/12kh18n9 "GOST 12Kh18N9") - [ст.07Х16Н6 Indicative](/materials/gost/st-07kh16n6 "GOST ст.07Х16Н6") - [Х16Н6 Indicative](/materials/gost/kh16n6 "GOST Х16Н6") - [Х17Н8 Indicative](/materials/gost/kh17n8 "GOST Х17Н8") - [ЭП288 Indicative](/materials/gost/ep288 "GOST ЭП288") UNI Italy · 2 - [X10CrNi18-8 Indicative](/materials/din-en/x10crni18-8 "UNI X10CrNi18-8") - [X12CrNi17-07 Indicative](/materials/uni/x12crni17-07 "UNI X12CrNi17-07") SS Sweden · 1 - [2331 Indicative](/materials/ss/2331 "SS 2331") ČSN Czechia · 2 - [17241 Indicative](/materials/csn/17241 "ČSN 17241") - [17242 Indicative](/materials/csn/17242 "ČSN 17242") STN Slovakia · 1 - [17 241 Indicative](/materials/csn/17241 "STN 17 241") PN Poland · 1 - [1H18N9 Indicative](/materials/pn/1h18n9 "PN 1H18N9") ABNT NBR Brazil · 2 - [301 Indicative](/materials/aisi-sae/301 "ABNT NBR 301") - [302 Indicative](/materials/aisi-sae/302 "ABNT NBR 302") SRPS Serbia · 1 - [Č.4571 Indicative](/materials/srps/c-4571 "SRPS Č.4571") 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 Ni Si Iron — the balance, never listed by a standard — 69.7 % Cr — 17.5 % Ni — 7.8 % Si — 2 % Traces & impurities · 3.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.05–0.15 | | Si | ≤ 2 — Unusual | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 16–19 | | Mo | ≤ 0.8 | | Ni | 6–9.5 | | N | 0.11 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 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 | 0,05-0,15 | 0.050 | 0.150 | Range | | N | 0,11 | 0.110 | 0.110 | Exact | | Si | ≤2,00 | — | 2.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 16,0-19,0 | 16.000 | 19.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 6,00-9,50 | 6.000 | 9.500 | Range | | Mo | ≤0,80 | — | 0.800 | Max | 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 This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## 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 5 conditions · 23 values By delivery state**no delivery state stated** source `splav` | Delivery state | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | HB | |---|---|---|---|---|---|---| | Bar, GOST 5949-75 | 1080 | 880 | 12 | 50 | 690 | — | | Forging, GOST 25054-81 | 1176 | 980 | 12 – 13 | 50 | 690 | — | | 07KH16N6 ( 07Х16Н6 ) , Forging GOST 25054-81 | — | — | — | — | — | 341 – 415 | 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 | 520 | 205 | 40 | — | — | — | | Hot-rolled | — | — | — | 207 | 95 | 218 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 230 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | |---|---|---|---| | Sheet trick, GOST 7350-77 | 1180 | 390 | 15 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | A5% | |---|---|---| | Sheet thin, GOST 5582-75 | 1180 | 20 | 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 / 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. [X2CrNiN18-7 1.4318 Cr 16,5-18,5 · Ni 6,00-8,00 - ΔCr 0.00 - ΔNi 0.75 - 7 designations](/materials/din-en/x2crnin18-7 "X2CrNiN18-7")[1.4568 1.4568 Cr 16,0-18,0 · Ni 6,50-7,80 - ΔCr 0.50 - ΔNi 0.60 - 42 designations](/materials/material-no/1.4568 "1.4568")[X5CrNi17-7 1.4319 Cr 16,0-18,0 · Ni 6,00-8,00 - ΔCr 0.50 - ΔNi 0.75 - 23 designations](/materials/din-en/x5crni17-7 "X5CrNi17-7")[X 12 CrNi 18 8 1.4300 Cr 17,0-19,0 · Ni 8,00-10,0 - ΔCr 0.50 - ΔNi 1.25 - 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 1.25 - 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 1.25 - 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=398fb60d-5ae9-4d8a-8b92-b5fbe85548ec&designation=95a375ae-d2e0-413f-b3ae-1d0b4bea9ba4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/crni17-7.pdf "Datasheet as PDF")