--- title: "STS310STB — Stainless steels" description: "STS310STB: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/ks/sts310stb language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/ks/sts310stb.md cs: https://steelequivalents.com/cs/materiály/ks/sts310stb.md de: https://steelequivalents.com/de/werkstoffe/ks/sts310stb.md es: https://steelequivalents.com/es/materiales/ks/sts310stb.md fr: https://steelequivalents.com/fr/matériaux/ks/sts310stb.md hu: https://steelequivalents.com/hu/anyagok/ks/sts310stb.md it: https://steelequivalents.com/it/materiali/ks/sts310stb.md nl: https://steelequivalents.com/nl/materialen/ks/sts310stb.md pl: https://steelequivalents.com/pl/materiały/ks/sts310stb.md pt: https://steelequivalents.com/pt/materiais/ks/sts310stb.md ru: https://steelequivalents.com/ru/материалы/ks/sts310stb.md tr: https://steelequivalents.com/tr/malzemeler/ks/sts310stb.md zh: https://steelequivalents.com/zh/材料/ks/sts310stb.md ja: https://steelequivalents.com/ja/材料/ks/sts310stb.md ar: https://steelequivalents.com/ar/المواد/ks/sts310stb.md ko: https://steelequivalents.com/ko/재료/ks/sts310stb.md pt-br: https://steelequivalents.com/pt-br/materiais/ks/sts310stb.md hi: https://steelequivalents.com/hi/सामग्री/ks/sts310stb.md content_hash: sha256:1ed27ab3f91e18caacb6a92a9c4bad87334b5c67701dde68bcef2cc28a53050c 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/sts310stb > Canonical URL: https://steelequivalents.com/materials/ks/sts310stb > 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 # STS310STB STS310STB is a material in the category [Stainless steels](/categories/stainless-steels "Stainless steels"). Its recorded composition includes C ≤ 0.08%, Si ≤ 1.5%, Cr 24–26%, Mn ≤ 2% and Ni 19–22%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 520 N/mm², Re 206 N/mm², A 27–35% and HRB 90. - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=790a15ec-0eca-431f-8bae-80a4ac1c404b&designation=eaaeae98-7829-4fdb-9d50-f99a196adbc4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ks/sts310stb.pdf "Datasheet as PDF") ## 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. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 50.9 % Cr — 25 % Ni — 20.5 % Mn — 2 % Traces & impurities · 1.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.08 | | Si | ≤ 1.5 | | Mn | ≤ 2 | | P | ≤ 0.04 | | S | ≤ 0.03 | | Cr | 24–26 | | Ni | 19–22 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 0.08 | — | 0.080 | Max | | Si | max 1.5 | — | 1.500 | Max | | P | max 0.04 | — | 0.040 | Max | | S | max 0.03 | — | 0.030 | Max | | Cr | 24 - 26 | 24.000 | 26.000 | Range | | Mn | max 2 | — | 2.000 | Max | | Ni | 19 - 22 | 19.000 | 22.000 | 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 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=790a15ec-0eca-431f-8bae-80a4ac1c404b&designation=eaaeae98-7829-4fdb-9d50-f99a196adbc4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/ks/sts310stb.pdf "Datasheet as PDF")