--- title: "Х18Н15КБ — composition, equivalents and standards" description: "Х18Н15КБ is a designation in GOST for the grade also listed as PA-ZhKh18N15KB. We list 3 designations recorded for this grade, in the standards GOST." canonical: https://steelequivalents.com/materials/gost/kh18n15kb language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/kh18n15kb.md cs: https://steelequivalents.com/cs/materiály/gost/kh18n15kb.md de: https://steelequivalents.com/de/werkstoffe/gost/kh18n15kb.md es: https://steelequivalents.com/es/materiales/gost/kh18n15kb.md fr: https://steelequivalents.com/fr/matériaux/gost/kh18n15kb.md hu: https://steelequivalents.com/hu/anyagok/gost/kh18n15kb.md it: https://steelequivalents.com/it/materiali/gost/kh18n15kb.md nl: https://steelequivalents.com/nl/materialen/gost/kh18n15kb.md pl: https://steelequivalents.com/pl/materiały/gost/kh18n15kb.md pt: https://steelequivalents.com/pt/materiais/gost/kh18n15kb.md ru: https://steelequivalents.com/ru/материалы/gost/х18н15кб.md tr: https://steelequivalents.com/tr/malzemeler/gost/kh18n15kb.md zh: https://steelequivalents.com/zh/材料/gost/kh18n15kb.md ja: https://steelequivalents.com/ja/材料/gost/kh18n15kb.md ar: https://steelequivalents.com/ar/المواد/gost/kh18n15kb.md ko: https://steelequivalents.com/ko/재료/gost/kh18n15kb.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/kh18n15kb.md hi: https://steelequivalents.com/hi/सामग्री/gost/kh18n15kb.md content_hash: sha256:a5f8725ec182de107e917705534b86b8b22cb11dbe738f54ce2f92f53b996819 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/gost/kh18n15kb > Canonical URL: https://steelequivalents.com/materials/gost/kh18n15kb > 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. GOST · Russia / CIS · 3 designations # Х18Н15КБ Х18Н15КБ is a designation in GOST for the grade also listed as PA-ZhKh18N15KB. We list 3 designations recorded for this grade, in the standards GOST. - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=6f3adb81-cfe3-46a2-a46d-a469581f6351&designation=85629562-42d4-43b2-a0c4-f450dda30eac "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/kh18n15kb.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [GOST PA-ZhKh18N15KB This grade’s own name](/materials/gost/pa-zhkh18n15kb "GOST PA-ZhKh18N15KB") ## Also known as 3 designations · 1 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. GOST Russia / CIS · 3 - [PA-ZhKh18N15KB This grade’s own name](/materials/gost/pa-zhkh18n15kb "GOST PA-ZhKh18N15KB") - [ПА-ЖХ18Н15КБ Indicative](/materials/gost/pa-zhkh18n15kb "GOST ПА-ЖХ18Н15КБ") - **Х18Н15КБ Indicative** Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 6 elements on file · weight % What this alloy is Fe Cr Ni C Iron — the balance, never listed by a standard — 65.7 % Cr — 18 % Ni — 14 % C — 1 % Traces & impurities · 1.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.5–1.5 — Unusual | | S | 0.3–1.5 — Unusual | | Cr | 16–20 | | Mo | 0.2–0.5 | | Ni | 12–16 | | B | 0.02–0.15 — Unusual | Carbon Sulfur Chromium Molybdenum Nickel Boron 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 | |---|---|---|---|---| | B | 0.02 - 0.15 | 0.020 | 0.150 | Range | | C | 0.5 - 1.5 | 0.500 | 1.500 | Range | | S | 0.3 - 1.5 | 0.300 | 1.500 | Range | | Cr | 16 - 20 | 16.000 | 20.000 | Range | | Ni | 12 - 16 | 12.000 | 16.000 | Range | | Mo | 0.2 - 0.5 | 0.200 | 0.500 | 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: Mn, Si. ## 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=6f3adb81-cfe3-46a2-a46d-a469581f6351&designation=85629562-42d4-43b2-a0c4-f450dda30eac "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/kh18n15kb.pdf "Datasheet as PDF")