--- title: "3ChF — Tool steels for cold work" description: "3ChF in GOST: material number 1.2208, also listed as 31CrV2. Category: Tool steels for cold work. Designations recorded for this grade: 7." canonical: https://steelequivalents.com/materials/gost/3chf language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/3chf.md cs: https://steelequivalents.com/cs/materiály/gost/3chf.md de: https://steelequivalents.com/de/werkstoffe/gost/3chf.md es: https://steelequivalents.com/es/materiales/gost/3chf.md fr: https://steelequivalents.com/fr/matériaux/gost/3chf.md hu: https://steelequivalents.com/hu/anyagok/gost/3chf.md it: https://steelequivalents.com/it/materiali/gost/3chf.md nl: https://steelequivalents.com/nl/materialen/gost/3chf.md pl: https://steelequivalents.com/pl/materiały/gost/3chf.md pt: https://steelequivalents.com/pt/materiais/gost/3chf.md ru: https://steelequivalents.com/ru/материалы/gost/3chf.md tr: https://steelequivalents.com/tr/malzemeler/gost/3chf.md zh: https://steelequivalents.com/zh/材料/gost/3chf.md ja: https://steelequivalents.com/ja/材料/gost/3chf.md ar: https://steelequivalents.com/ar/المواد/gost/3chf.md ko: https://steelequivalents.com/ko/재료/gost/3chf.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/3chf.md hi: https://steelequivalents.com/hi/सामग्री/gost/3chf.md content_hash: sha256:aef838a8eebaf732c4ac53692f49f3469a8628036f7cce5b69e248d42bfdf310 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/3chf > Canonical URL: https://steelequivalents.com/materials/gost/3chf > 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 · 7 designations # 3ChF 3ChF is a designation in GOST for the material held under material number 1.2208, also listed as 31CrV2. It is a material in the category Tool steels for cold work. We list 7 designations recorded for this grade, in the standards DIN / EN, AFNOR, GOST, SRPS and STAS. - [*Material no.* **1.2208**](/materials/material-no/1.2208 "Material no.: 1.2208") - [*Category* **Tool steels for cold work · 109 grades**](/categories/tool-steels-for-cold-work "Category: Tool steels for cold work · 109 grades") - *Designations* **7** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=32ee8c74-20fc-43ab-9844-03219b7891f5&designation=423a627b-07c1-4d16-8ba0-fcbd3fd0a19c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/3chf.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 31CrV2 This grade’s own name](/materials/din-en/31crv2 "DIN / EN 31CrV2") ## About Tool steels for cold work Cold-work tool steels are high-strength tool materials designed for shaping, cutting and forming operations carried out without significant heating of the workpiece. They are characterised by high hardness, wear resistance and the ability to retain a sharp or precise working edge, making them suitable for dies, punches, cutting tools and other tooling exposed to repeated mechanical contact. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 7 designations · 5 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. DIN / EN Europe · 2 - [31CrV2 This grade’s own name](/materials/din-en/31crv2 "DIN / EN 31CrV2") - [31CrV3 This grade’s own name Withdrawn](/materials/din-en/31crv3 "DIN / EN 31CrV3") AFNOR France · 1 - [31CV3 Indicative](/materials/afnor/31cv3 "AFNOR 31CV3") GOST Russia / CIS · 2 - **3ChF Indicative** - [3ХФ Indicative](/materials/gost/3khf "GOST 3ХФ") SRPS Serbia · 1 - [Č.4835 Indicative](/materials/srps/c-4835 "SRPS Č.4835") STAS Romania · 1 - [31VCr5 Indicative](/materials/stas/31vcr5 "STAS 31VCr5") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Mn Si Iron — the balance, never listed by a standard — 98.2 % Cr — 0.6 % Mn — 0.5 % Si — 0.3 % Traces & impurities · 0.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.28–0.35 | | Si | 0.25–0.4 | | Mn | 0.4–0.6 | | P | 0.03 | | S | 0.03 | | Cr | 0.4–0.7 | | V | 0.07–0.12 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Vanadium 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 | 0,28-0,35 | 0.280 | 0.350 | Range | | Si | 0,25-0,40 | 0.250 | 0.400 | Range | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | V | 0,07-0,12 | 0.070 | 0.120 | Range | | Cr | 0,40-0,70 | 0.400 | 0.700 | Range | | Mn | 0,40-0,60 | 0.400 | 0.600 | 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, Mo. ## Physical & mechanical properties Density 7,85 g/cm³ Exact 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.2, a shared category, and a published range for Cr / Mn that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [64SiCr5 1.2102 Cr 0,40-0,60 · Mn 0,40-0,60 - ΔCr 0.05 - ΔMn 0.00 - 1 designations](/materials/din-en/64sicr5 "64SiCr5")[73WCrMoV2-2 1.2604 Cr 0,40-0,60 · Mn 0,40-0,60 - ΔCr 0.05 - ΔMn 0.00 - 1 designations](/materials/din-en/73wcrmov2-2 "73WCrMoV2-2")[55NiCr10 1.2718 Cr 0,50-0,70 · Mn 0,40-0,50 - ΔCr 0.05 - ΔMn 0.05 - 2 designations](/materials/din-en/55nicr10 "55NiCr10")[80 CrV 2 3 1.2236 Cr 0,40-0,70 · Mn 0,30-0,50 - ΔCr 0.00 - ΔMn 0.10 - 1 designations](/materials/din-en/80-crv-2-3 "80 CrV 2 3")[80CrV2 1.2235 Cr 0,40-0,60 · Mn 0,30-0,50 - ΔCr 0.05 - ΔMn 0.10 - 26 designations](/materials/din-en/80crv2 "80CrV2")[140Cr2 1.2008 Cr 0,40-0,70 · Mn 0,25-0,40 - ΔCr 0.00 - ΔMn 0.18 - 14 designations](/materials/din-en/140cr2 "140Cr2") ## 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=32ee8c74-20fc-43ab-9844-03219b7891f5&designation=423a627b-07c1-4d16-8ba0-fcbd3fd0a19c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/3chf.pdf "Datasheet as PDF")