--- title: "1.5638 — Low-temperature structural steels" description: "1.5638 is the material number of the grade also listed as GS-10Ni14. Category: Low-temperature structural steels. Designations recorded for this grade: 4." canonical: https://steelequivalents.com/materials/material-no/1.5638 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.5638.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.5638.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.5638.md es: https://steelequivalents.com/es/materiales/número-de-material/1.5638.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.5638.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.5638.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.5638.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.5638.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.5638.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.5638.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.5638.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.5638.md zh: https://steelequivalents.com/zh/材料/材料编号/1.5638.md ja: https://steelequivalents.com/ja/材料/材料番号/1.5638.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.5638.md ko: https://steelequivalents.com/ko/재료/재료번호/1.5638.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.5638.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.5638.md content_hash: sha256:b745916895f9a730a60f6d591a0c5bc6bd4f07c2d2fbe75648bd6e4400e73014 generated: 2026-09-24 --- > **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/material-no/1.5638 > Canonical URL: https://steelequivalents.com/materials/material-no/1.5638 > 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. Material number · Europe · 4 designations # 1.5638 1.5638 is the material number of the grade also listed as GS-10Ni14. It is a material in the category Low-temperature structural steels. We list 4 designations recorded for this grade, in the standards DIN / EN and UNS. - ***Material no.* **1.5638**** - [*Category* **Low-temperature structural steels · 55 grades**](/categories/low-temperature-structural-steels "Category: Low-temperature structural steels · 55 grades") - *Designations* **4** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3e2034cd-bce7-4eec-86dc-1634cfeda8bf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.5638.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN G9Ni14 This grade’s own name](/materials/din-en/g9ni14 "DIN / EN G9Ni14") - [UNS J31500 This grade’s own name](/materials/uns/j31500 "UNS J31500") ## 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 4 designations · 2 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 - [G9Ni14 This grade’s own name](/materials/din-en/g9ni14 "DIN / EN G9Ni14") - [GS-10Ni14 This grade’s own name Withdrawn](/materials/din-en/gs-10ni14 "DIN / EN GS-10Ni14") UNS United States · 2 - [J31500 This grade’s own name](/materials/uns/j31500 "UNS J31500") - [J31550 This grade’s own name](/materials/uns/j31550 "UNS J31550") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 10 elements on file · weight % What this alloy is Fe Ni Mn Si Iron — the balance, never listed by a standard — 94.3 % Ni — 3.5 % Mn — 0.7 % Si — 0.6 % Traces & impurities · 1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.06–0.12 | | Si | ≤ 0.6 | | Mn | 0.5–0.8 | | P | 0.02 | | S | 0.015 | | Cr | ≤ 0.3 | | Mo | ≤ 0.2 | | Ni | 3–4 | | V | ≤ 0.05 | | Al | ≤ 0.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium 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 | 0,06-0,12 | 0.060 | 0.120 | Range | | Al | ≤0,30 | — | 0.300 | Max | | Si | ≤0,60 | — | 0.600 | Max | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | V | ≤0,05 | — | 0.050 | Max | | Cr | ≤0,30 | — | 0.300 | Max | | Mn | 0,50-0,80 | 0.500 | 0.800 | Range | | Ni | 3,00-4,00 | 3.000 | 4.000 | Range | | Mo | ≤0,20 | — | 0.200 | 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 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. ## 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. [1.5637 1.5637 Ni 3,25-3,75 · Mn 0,30-0,80 - ΔNi 0.00 - ΔMn 0.10 - 31 designations](/materials/material-no/1.5637 "1.5637")[16Ni14 1.5639 Ni 3,20-3,80 · Mn 0,30-0,60 - ΔNi 0.00 - ΔMn 0.20 - 21 designations](/materials/din-en/16ni14 "16Ni14")[G9Ni10 1.5636 Ni 2,00-3,00 · Mn 0,50-0,80 - ΔNi 1.00 - ΔMn 0.00 - 1 designations](/materials/din-en/g9ni10 "G9Ni10") ## 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=3e2034cd-bce7-4eec-86dc-1634cfeda8bf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.5638.pdf "Datasheet as PDF")