--- title: "ЭИ844Б — composition, equivalents and standards" description: "ЭИ844Б is a designation in GOST for the grade also listed as 00Х16Н15М3Б. We list 4 designations recorded for this grade, in the standards GOST." canonical: https://steelequivalents.com/materials/gost/ei844b language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/ei844b.md cs: https://steelequivalents.com/cs/materiály/gost/ei844b.md de: https://steelequivalents.com/de/werkstoffe/gost/ei844b.md es: https://steelequivalents.com/es/materiales/gost/ei844b.md fr: https://steelequivalents.com/fr/matériaux/gost/ei844b.md hu: https://steelequivalents.com/hu/anyagok/gost/ei844b.md it: https://steelequivalents.com/it/materiali/gost/ei844b.md nl: https://steelequivalents.com/nl/materialen/gost/ei844b.md pl: https://steelequivalents.com/pl/materiały/gost/ei844b.md pt: https://steelequivalents.com/pt/materiais/gost/ei844b.md ru: https://steelequivalents.com/ru/материалы/gost/эи844б.md tr: https://steelequivalents.com/tr/malzemeler/gost/ei844b.md zh: https://steelequivalents.com/zh/材料/gost/ei844b.md ja: https://steelequivalents.com/ja/材料/gost/ei844b.md ar: https://steelequivalents.com/ar/المواد/gost/ei844b.md ko: https://steelequivalents.com/ko/재료/gost/ei844b.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/ei844b.md hi: https://steelequivalents.com/hi/सामग्री/gost/ei844b.md content_hash: sha256:d18d0638d5ca54db4347929bbb97d9e712f688e0c43f174be1ef7746e26f75f6 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/gost/ei844b > Canonical URL: https://steelequivalents.com/materials/gost/ei844b > 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 · 4 designations # ЭИ844Б ЭИ844Б is a designation in GOST for the grade also listed as 00Х16Н15М3Б. We list 4 designations recorded for this grade, in the standards GOST. - *Designations* **4** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=18ec9206-2dea-45b2-9f0a-93632e4a689d&designation=c7f5440f-88ec-4055-8648-d0c694ee7114 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/ei844b.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [GOST 03KH16N15M3B This grade’s own name](/materials/gost/03kh16n15m3b "GOST 03KH16N15M3B") ## Also known as 4 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 · 4 - [00Х16Н15М3Б Indicative](/materials/gost/00kh16n15m3b "GOST 00Х16Н15М3Б") - [03KH16N15M3B This grade’s own name](/materials/gost/03kh16n15m3b "GOST 03KH16N15M3B") - [03Х16Н15М3Б Indicative](/materials/gost/03kh16n15m3b "GOST 03Х16Н15М3Б") - **ЭИ844Б Indicative** Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Cr Ni Mo Iron — the balance, never listed by a standard — 64.4 % Cr — 16 % Ni — 15 % Mo — 2.8 % Traces & impurities · 1.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.03 | | Si | ≤ 0.6 | | Mn | ≤ 0.8 | | P | ≤ 0.02 | | S | ≤ 0.015 | | Cr | 15–17 | | Mo | 2.5–3 | | Ni | 14–16 | | Nb | 0.25–0.5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Niobium 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 0.03 | — | 0.030 | Max | | Si | max 0.6 | — | 0.600 | Max | | P | max 0.02 | — | 0.020 | Max | | S | max 0.015 | — | 0.015 | Max | | Cr | 15 - 17 | 15.000 | 17.000 | Range | | Mn | max 0.8 | — | 0.800 | Max | | Ni | 14 - 16 | 14.000 | 16.000 | Range | | Nb | 0.25 - 0.5 | 0.250 | 0.500 | Range | | Mo | 2.5 - 3 | 2.500 | 3.000 | 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 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 Weldability readily weldable As published: without limitations. 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=18ec9206-2dea-45b2-9f0a-93632e4a689d&designation=c7f5440f-88ec-4055-8648-d0c694ee7114 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/ei844b.pdf "Datasheet as PDF")