--- title: "3Ch2V8F — composition, equivalents and standards" description: "3Ch2V8F: 2 equivalent designations across 2 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gost/3ch2v8f language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/3ch2v8f.md cs: https://steelequivalents.com/cs/materiály/gost/3ch2v8f.md de: https://steelequivalents.com/de/werkstoffe/gost/3ch2v8f.md es: https://steelequivalents.com/es/materiales/gost/3ch2v8f.md fr: https://steelequivalents.com/fr/matériaux/gost/3ch2v8f.md hu: https://steelequivalents.com/hu/anyagok/gost/3ch2v8f.md it: https://steelequivalents.com/it/materiali/gost/3ch2v8f.md nl: https://steelequivalents.com/nl/materialen/gost/3ch2v8f.md pl: https://steelequivalents.com/pl/materiały/gost/3ch2v8f.md pt: https://steelequivalents.com/pt/materiais/gost/3ch2v8f.md ru: https://steelequivalents.com/ru/материалы/gost/3ch2v8f.md tr: https://steelequivalents.com/tr/malzemeler/gost/3ch2v8f.md zh: https://steelequivalents.com/zh/材料/gost/3ch2v8f.md ja: https://steelequivalents.com/ja/材料/gost/3ch2v8f.md ar: https://steelequivalents.com/ar/المواد/gost/3ch2v8f.md ko: https://steelequivalents.com/ko/재료/gost/3ch2v8f.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/3ch2v8f.md hi: https://steelequivalents.com/hi/सामग्री/gost/3ch2v8f.md content_hash: sha256:ceeb9e3be54f12a00e4b4895b7776142b2f0cd78adc8725c2bd9bc2569aa1256 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/3ch2v8f > Canonical URL: https://steelequivalents.com/materials/gost/3ch2v8f > 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 · 2 designations # 3Ch2V8F 19721 is a grade designated under ČSN. Its recorded composition includes C 0.3–0.4%, V 0.2–0.5%, Cr 2.2–2.7%, Mn 0.15–0.4% and W 7.5–8.5%. We list one designation recorded for this grade, in the standard GOST. - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=7b7b2864-277d-42f8-a236-3daf28da6057&designation=9fa1da5e-d0a5-484d-bcb7-80d94e0e4b65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/3ch2v8f.pdf "Datasheet as PDF") ## Also known as 2 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. GOST Russia / CIS · 1 - **3Ch2V8F This grade’s own name** ČSN Czechia · 1 - [19721 Indicative](/materials/csn/19721 "ČSN 19721") 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 W Cr C Iron — the balance, never listed by a standard — 87.6 % W — 8 % Cr — 2.5 % C — 0.4 % Traces & impurities · 1.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.3–0.4 | | Si | 0.15–0.4 | | Mn | 0.15–0.4 | | P | ≤ 0.03 | | S | ≤ 0.03 | | Cr | 2.2–2.7 | | Ni | ≤ 0.35 | | V | 0.2–0.5 | | W | 7.5–8.5 | | Cu | ≤ 0.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Vanadium Tungsten Copper 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 | 0.30 - 0.40 | 0.300 | 0.400 | Range | | Si | 0.15 - 0.40 | 0.150 | 0.400 | Range | | P | \<0.03 | — | 0.030 | Max | | S | \<0.03 | — | 0.030 | Max | | V | 0.20 - 0.50 | 0.200 | 0.500 | Range | | Cr | 2.20 -2.70 | 2.200 | 2.700 | Range | | Mn | 0.15 - 0.40 | 0.150 | 0.400 | Range | | Ni | \<0.35 | — | 0.350 | Max | | Cu | \<0.3 | — | 0.300 | Max | | W | 7.50 - 8.50 | 7.500 | 8.500 | 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: 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=7b7b2864-277d-42f8-a236-3daf28da6057&designation=9fa1da5e-d0a5-484d-bcb7-80d94e0e4b65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/3ch2v8f.pdf "Datasheet as PDF")