--- title: "3.5Ni355 — Low-temperature structural steels" description: "3.5Ni355 in AFNOR: material number 1.5637, also listed as 10Ni14. Category: Low-temperature structural steels. Designations recorded for this grade: 31." canonical: https://steelequivalents.com/materials/afnor/3-5ni355 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/afnor/3-5ni355.md cs: https://steelequivalents.com/cs/materiály/afnor/3-5ni355.md de: https://steelequivalents.com/de/werkstoffe/afnor/3-5ni355.md es: https://steelequivalents.com/es/materiales/afnor/3-5ni355.md fr: https://steelequivalents.com/fr/matériaux/afnor/3-5ni355.md hu: https://steelequivalents.com/hu/anyagok/afnor/3-5ni355.md it: https://steelequivalents.com/it/materiali/afnor/3-5ni355.md nl: https://steelequivalents.com/nl/materialen/afnor/3-5ni355.md pl: https://steelequivalents.com/pl/materiały/afnor/3-5ni355.md pt: https://steelequivalents.com/pt/materiais/afnor/3-5ni355.md ru: https://steelequivalents.com/ru/материалы/afnor/3-5ni355.md tr: https://steelequivalents.com/tr/malzemeler/afnor/3-5ni355.md zh: https://steelequivalents.com/zh/材料/afnor/3-5ni355.md ja: https://steelequivalents.com/ja/材料/afnor/3-5ni355.md ar: https://steelequivalents.com/ar/المواد/afnor/3-5ni355.md ko: https://steelequivalents.com/ko/재료/afnor/3-5ni355.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor/3-5ni355.md hi: https://steelequivalents.com/hi/सामग्री/afnor/3-5ni355.md content_hash: sha256:423a6c55bb80037c521a69c81f35810eacb403a3564e8c9f67f8276cb650fe19 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/afnor/3-5ni355 > Canonical URL: https://steelequivalents.com/materials/afnor/3-5ni355 > 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. AFNOR · France · 31 designations # 3.5Ni355 3.5Ni355 is a designation in AFNOR for the material held under material number 1.5637, also listed as 10Ni14. It is a material in the category Low-temperature structural steels. We list 31 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, JIS, GB, ČSN and MSZ. - [*Material no.* **1.5637**](/materials/material-no/1.5637 "Material no.: 1.5637") - [*Category* **Low-temperature structural steels · 55 grades**](/categories/low-temperature-structural-steels "Category: Low-temperature structural steels · 55 grades") - *Designations* **31** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=4da637c9-3606-4d93-89ce-6949d330517e&designation=79ee090a-068d-469a-a6bb-42c546aedbed "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/3-5ni355.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 12Ni14 This grade’s own name](/materials/din-en/12ni14 "DIN / EN 12Ni14") - [UNS K31718 This grade’s own name · 2 grades on that route](/materials/uns/k31718 "UNS K31718") ## About Low-temperature structural steels Low-temperature structural steels are structural steels designed to retain toughness and reliable load-bearing performance in cold service. Their resistance to brittle fracture at low temperatures makes them suitable for structures, pressure-containing equipment and other components exposed to severe cold. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 31 designations · 12 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 · 4 - [1.5637 Indicative](/materials/material-no/1.5637 "DIN / EN 1.5637") - [10Ni14 This grade’s own name Withdrawn](/materials/din-en/10ni14 "DIN / EN 10Ni14") - [12Ni14 This grade’s own name](/materials/din-en/12ni14 "DIN / EN 12Ni14") - [X12Ni14 Indicative](/materials/din-en/x12ni14 "DIN / EN X12Ni14") UNS United States · 5 - [K31718 This grade’s own name](/materials/uns/k31718 "UNS K31718") - [K31918 This grade’s own name](/materials/uns/k31918 "UNS K31918") - [K32018 This grade’s own name](/materials/uns/k32018 "UNS K32018") - [K32025 This grade’s own name](/materials/uns/k32025 "UNS K32025") - [K41583 Indicative](/materials/uns/k41583 "UNS K41583") AISI / SAE United States · 1 - [A350-LF3 Indicative](/materials/aisi-sae/a350-lf3 "AISI / SAE A350-LF3") ASTM United States · 3 - [A 333 Grade 3 Indicative](/materials/astm/a-333-grade-3 "ASTM A 333 Grade 3") - [A 350 Grade LF3 Indicative](/materials/astm/a-350-grade-lf3 "ASTM A 350 Grade LF3") - [A 420 Grade WPL3 Indicative](/materials/astm/a-420-grade-wpl3 "ASTM A 420 Grade WPL3") BS United Kingdom · 3 - [1501-503-690 Indicative](/materials/bs/1501-503-690 "BS 1501-503-690") - [BS1501 Gr 503 Indicative](/materials/bs/bs1501-gr-503 "BS BS1501 Gr 503") - [BS3603 gr. 503LT Indicative](/materials/bs/bs3603-gr-503lt "BS BS3603 gr. 503LT") AFNOR France · 4 - [12N14 Indicative](/materials/afnor/12n14 "AFNOR 12N14") - [12NJ14 Indicative](/materials/afnor/12nj14 "AFNOR 12NJ14") - **3.5Ni355 Indicative** - [Z10N05 Indicative](/materials/din-en/z10n05 "AFNOR Z10N05") UNE Spain · 2 - [A-152 Indicative](/materials/une/a-152 "UNE A-152") - [F.152 Indicative](/materials/une/f-152 "UNE F.152") ISO International · 1 - [X9Ni5 Indicative](/materials/iso/x9ni5 "ISO X9Ni5") JIS Japan · 4 - [G3127 gr. SL3N255 Indicative](/materials/jis/g3127-gr-sl3n255 "JIS G3127 gr. SL3N255") - [G3127 gr. SL3N440 Indicative](/materials/jis/g3127-gr-sl3n440 "JIS G3127 gr. SL3N440") - [G3127 gr. SL5N590 Indicative](/materials/jis/g3127-gr-sl5n590 "JIS G3127 gr. SL5N590") - [G3464 gr. STBL450 Indicative](/materials/jis/g3464-gr-stbl450 "JIS G3464 gr. STBL450") GB China · 2 - [07Ni5DR Indicative](/materials/gb/07ni5dr "GB 07Ni5DR") - [08Ni3DR Indicative](/materials/gb/08ni3dr "GB 08Ni3DR") ČSN Czechia · 1 - [16329VN Indicative](/materials/csn/16329vn "ČSN 16329VN") MSZ Hungary · 1 - [AH80 Indicative](/materials/msz/ah80 "MSZ AH80") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Ni Mn Si Iron — the balance, never listed by a standard — 95.4 % Ni — 3.5 % Mn — 0.6 % Si — 0.4 % Traces & impurities · 0.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 0.35 | | Mn | 0.3–0.8 | | P | 0.02 | | S | 0.01 | | Ni | 3.25–3.75 | | V | ≤ 0.05 | Carbon Silicon Manganese Phosphorus Sulfur Nickel Vanadium 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 | | Si | ≤0,35 | — | 0.350 | Max | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | V | ≤0,05 | — | 0.050 | Max | | Mn | 0,30-0,80 | 0.300 | 0.800 | Range | | Ni | 3,25-3,75 | 3.250 | 3.750 | 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: Cr, 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 · 5 values By thickness**Normalized** source `steelnumber` | Thickness mm | ReH N/mm² | Rm N/mm² | A% | |---|---|---|---| | ≤ 30 | 355 | — | — | | 30 – 50 | 345 | — | — | | 50 – 80 | 335 | — | — | | ≤ 80 | — | 490 – 640 | 20 – 22 | 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 1.5, a shared category, and a published range for Ni / 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. [G9Ni14 1.5638 Ni 3,00-4,00 · Mn 0,50-0,80 - ΔNi 0.00 - ΔMn 0.10 - 4 designations](/materials/din-en/g9ni14 "G9Ni14")[16Ni14 1.5639 Ni 3,20-3,80 · Mn 0,30-0,60 - ΔNi 0.00 - ΔMn 0.10 - 21 designations](/materials/din-en/16ni14 "16Ni14") ## 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=4da637c9-3606-4d93-89ce-6949d330517e&designation=79ee090a-068d-469a-a6bb-42c546aedbed "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/3-5ni355.pdf "Datasheet as PDF")