--- title: "SLAI235 — Low-temperature structural steels" description: "SLAI235: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/ks/slai235 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/ks/slai235.md cs: https://steelequivalents.com/cs/materiály/ks/slai235.md de: https://steelequivalents.com/de/werkstoffe/ks/slai235.md es: https://steelequivalents.com/es/materiales/ks/slai235.md fr: https://steelequivalents.com/fr/matériaux/ks/slai235.md hu: https://steelequivalents.com/hu/anyagok/ks/slai235.md it: https://steelequivalents.com/it/materiali/ks/slai235.md nl: https://steelequivalents.com/nl/materialen/ks/slai235.md pl: https://steelequivalents.com/pl/materiały/ks/slai235.md pt: https://steelequivalents.com/pt/materiais/ks/slai235.md ru: https://steelequivalents.com/ru/материалы/ks/slai235.md tr: https://steelequivalents.com/tr/malzemeler/ks/slai235.md zh: https://steelequivalents.com/zh/材料/ks/slai235.md ja: https://steelequivalents.com/ja/材料/ks/slai235.md ar: https://steelequivalents.com/ar/المواد/ks/slai235.md ko: https://steelequivalents.com/ko/재료/ks/slai235.md pt-br: https://steelequivalents.com/pt-br/materiais/ks/slai235.md hi: https://steelequivalents.com/hi/सामग्री/ks/slai235.md content_hash: sha256:cadd02dc2fba6079a9b07b92cabb69eb6f2f02cbd6778393a129f5bc6cb72a4c 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/ks/slai235 > Canonical URL: https://steelequivalents.com/materials/ks/slai235 > 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. KS · South Korea · 1 designation # SLAI235 SLAI235 is a material in the category [Low-temperature structural steels](/categories/low-temperature-structural-steels "Low-temperature structural steels"). Its recorded composition includes C ≤ 0.15%, Si 0.15–0.3%, P ≤ 0.035%, S ≤ 0.035% and Mn 0.7–1.5%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 400–510 N/mm², Re 215–235 N/mm² and A 18–24%. - [*Category* **Low-temperature structural steels · 55 grades**](/categories/low-temperature-structural-steels "Category: Low-temperature structural steels · 55 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=b3435389-af99-42f0-b864-0f9f99a03ecb&designation=e61716dd-4d45-4eb2-9262-574695fecdc7 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ks/slai235.pdf "Datasheet as PDF") ## 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. ## Chemical composition 5 elements on file · weight % What this alloy is Fe Mn Si C Iron — the balance, never listed by a standard — 98.5 % Mn — 1.1 % Si — 0.2 % C — 0.2 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | 0.15–0.3 | | Mn | 0.7–1.5 | | P | ≤ 0.035 | | S | ≤ 0.035 | Carbon Silicon Manganese Phosphorus Sulfur 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 | max 0.15 | — | 0.150 | Max | | Si | 0.15 - 0.3 | 0.150 | 0.300 | Range | | P | max 0.035 | — | 0.035 | Max | | S | max 0.035 | — | 0.035 | Max | | Mn | 0.7 - 1.5 | 0.700 | 1.500 | 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: Ni, Cr, Mo. ## Physical & mechanical properties 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. ## 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=b3435389-af99-42f0-b864-0f9f99a03ecb&designation=e61716dd-4d45-4eb2-9262-574695fecdc7 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ks/slai235.pdf "Datasheet as PDF")