--- title: "316S111 – — Stainless steels" description: "316S111 – in BS: material number 1.4568, also listed as X7CrNiAl17-7. Category: Stainless steels. 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Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. BS · United Kingdom · 42 designations # 316S111 – 316S111 – is a designation in BS for the material held under material number 1.4568, also listed as X7CrNiAl17-7. It is a material in the category Stainless steels. We list 42 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, ISO, SAE AMS, JIS, GB, GOST, UNI and SS. - [*Material no.* **1.4568**](/materials/material-no/1.4568 "Material no.: 1.4568") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **42** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=5686d575-1da4-488d-ad36-0bcbdb5cbb24&designation=eeaad0f0-5951-41a0-9e09-047ed73f0ac9 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/316s111.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X7CrNiAl17-7 This grade’s own name](/materials/din-en/x7crnial17-7 "DIN / EN X7CrNiAl17-7") - [UNS S17700 This grade’s own name · 3 grades on that route](/materials/uns/s17700 "UNS S17700") - [AISI / SAE 631 This grade’s own name · 3 grades on that route](/materials/aisi-sae/631 "AISI / SAE 631") ## 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 42 designations · 13 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 Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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 · 2 - [1.4568 Indicative](/materials/material-no/1.4568 "DIN / EN 1.4568") - [X7CrNiAl17-7 This grade’s own name](/materials/din-en/x7crnial17-7 "DIN / EN X7CrNiAl17-7") UNS United States · 4 - [AMS 5529/5528 Indicative](/materials/uns/ams-5529-5528 "UNS AMS 5529/5528") - [AMS 5644 Indicative](/materials/uns/ams-5644 "UNS AMS 5644") - [AMS 5678 Indicative](/materials/uns/ams-5678 "UNS AMS 5678") - [S17700 This grade’s own name](/materials/uns/s17700 "UNS S17700") AISI / SAE United States · 4 - [17-7PH Indicative](/materials/aisi-sae/17-7ph "AISI / SAE 17-7PH") - [631 This grade’s own name](/materials/aisi-sae/631 "AISI / SAE 631") - [J2171994 This grade’s own name](/materials/aisi-sae/j2171994 "AISI / SAE J2171994") - [S17700 Indicative](/materials/uns/s17700 "AISI / SAE S17700") ASTM United States · 7 - [17-7PH Indicative](/materials/aisi-sae/17-7ph "ASTM 17-7PH") - [A 313 Indicative](/materials/astm/a313 "ASTM A 313") - [A 564 Indicative](/materials/astm/a564 "ASTM A 564") - [A 564 Type 631 Indicative](/materials/astm/a-564-type-631 "ASTM A 564 Type 631") - [A 579 Indicative](/materials/astm/a579 "ASTM A 579") - [A 693 Indicative](/materials/astm/a693 "ASTM A 693") - [A 705 Indicative](/materials/astm/a705 "ASTM A 705") BS United Kingdom · 2 - [301S81 Indicative](/materials/bs/301s81 "BS 301S81") - **316S111 – Indicative** AFNOR France · 3 - [Z8CNA17-07 Indicative](/materials/afnor/z8cna17-07 "AFNOR Z8CNA17-07") - [Z8CNA17-7 Indicative](/materials/afnor/z8cna17-7 "AFNOR Z8CNA17-7") - [Z9CNA17-07 Indicative](/materials/afnor/z9cna17-07 "AFNOR Z9CNA17-07") ISO International · 1 - [X7CrNiAl17-7 Indicative](/materials/din-en/x7crnial17-7 "ISO X7CrNiAl17-7") SAE AMS United States / Aerospace · 6 - [5528 Indicative plate sheet strip](/materials/ams/5528 "SAE AMS 5528") - [5529 Indicative sheet strip](/materials/ams/5529 "SAE AMS 5529") - [5568 Indicative tubing](/materials/ams/5568 "SAE AMS 5568") - [5644 Indicative bar forging](/materials/ams/5644 "SAE AMS 5644") - [5678 Indicative wire](/materials/ams/5678 "SAE AMS 5678") - [5824 Indicative wire](/materials/ams/5824 "SAE AMS 5824") JIS Japan · 2 - [SUS 631-CSP Indicative](/materials/jis/sus631-csp "JIS SUS 631-CSP") - [SUS631 Indicative](/materials/jis/sus631 "JIS SUS631") GB China · 1 - [0Cr17Ni7Al Indicative](/materials/gb/0cr17ni7al "GB 0Cr17Ni7Al") GOST Russia / CIS · 8 - [09Ch17N7Ju1 Indicative](/materials/gost/09ch17n7ju1 "GOST 09Ch17N7Ju1") - [09KH17N7YU Indicative](/materials/gost/09kh17n7yu "GOST 09KH17N7YU") - [09KH17N7YU1 Indicative](/materials/gost/09kh17n7yu1 "GOST 09KH17N7YU1") - [09X17H7Ю Indicative](/materials/gost/09x17h7yu "GOST 09X17H7Ю") - [09Х17Н7Ю Indicative](/materials/gost/09kh17n7yu "GOST 09Х17Н7Ю") - [09Х17Н7Ю1 Indicative](/materials/gost/09kh17n7yu1 "GOST 09Х17Н7Ю1") - [0Х17Н7Ю Indicative](/materials/gost/0kh17n7yu "GOST 0Х17Н7Ю") - [0Х17Н7Ю1 Indicative](/materials/gost/0kh17n7yu1 "GOST 0Х17Н7Ю1") UNI Italy · 1 - [X2CrNiMo1712 Indicative](/materials/uni/x2crnimo17-12 "UNI X2CrNiMo1712") SS Sweden · 1 - [2388 Indicative](/materials/ss/2388 "SS 2388") 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 Al Iron — the balance, never listed by a standard — 72.9 % Cr — 17 % Ni — 7.2 % Al — 1.1 % Traces & impurities · 1.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.09 | | Si | ≤ 0.7 | | Mn | ≤ 1 | | P | 0.04 | | S | 0.015 | | Cr | 16–18 | | Ni | 6.5–7.8 | | Al | 0.7–1.5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Aluminium 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 | ≤0,09 | — | 0.090 | Max | | Al | 0,70-1,50 | 0.700 | 1.500 | Range | | Si | ≤0,70 | — | 0.700 | Max | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 16,0-18,0 | 16.000 | 18.000 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Ni | 6,50-7,80 | 6.500 | 7.800 | 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 7,8 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 2 conditions · 5 values By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 255 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | KCU kJ/m² | |---|---|---|---|---| | Sheet trick, GOST 7350-77 | 830 | 735 | 12 | 490 | 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 - Ageing Test specimen d\<0.2 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/azhlNWIxMTM1MjI_ "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 0.00 - ΔNi 0.15 - 23 designations](/materials/din-en/x5crni17-7 "X5CrNi17-7")[X2CrNiN18-7 1.4318 Cr 16,5-18,5 · Ni 6,00-8,00 - ΔCr 0.50 - ΔNi 0.15 - 7 designations](/materials/din-en/x2crnin18-7 "X2CrNiN18-7")[1.4310 1.4310 Cr 16,0-19,0 · Ni 6,00-9,50 - ΔCr 0.50 - ΔNi 0.60 - 97 designations](/materials/material-no/1.4310 "1.4310")[X8CrNiMoAl15-7-2 1.4532 Cr 14,0-16,0 · Ni 6,50-7,80 - ΔCr 2.00 - ΔNi 0.00 - 10 designations](/materials/din-en/x8crnimoal15-7-2 "X8CrNiMoAl15-7-2")[X15CrNiMn18-8 1.4370 Cr 17,2-19,8 · Ni 7,60-9,40 - ΔCr 1.50 - ΔNi 1.35 - 1 designations](/materials/din-en/x15crnimn18-8 "X15CrNiMn18-8") ## 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=5686d575-1da4-488d-ad36-0bcbdb5cbb24&designation=eeaad0f0-5951-41a0-9e09-047ed73f0ac9 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/316s111.pdf "Datasheet as PDF")