--- title: "Х40CrMoV5 — Tool steels for hot work" description: "Х40CrMoV5 in AFNOR: material number 1.2344, also listed as X40CrMoV5-1. Category: Tool steels for hot work. Designations recorded for this grade: 49." canonical: https://steelequivalents.com/materials/afnor/kh40crmov5 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/afnor/kh40crmov5.md cs: https://steelequivalents.com/cs/materiály/afnor/kh40crmov5.md de: https://steelequivalents.com/de/werkstoffe/afnor/kh40crmov5.md es: https://steelequivalents.com/es/materiales/afnor/kh40crmov5.md fr: https://steelequivalents.com/fr/matériaux/afnor/kh40crmov5.md hu: https://steelequivalents.com/hu/anyagok/afnor/kh40crmov5.md it: https://steelequivalents.com/it/materiali/afnor/kh40crmov5.md nl: https://steelequivalents.com/nl/materialen/afnor/kh40crmov5.md pl: https://steelequivalents.com/pl/materiały/afnor/kh40crmov5.md pt: https://steelequivalents.com/pt/materiais/afnor/kh40crmov5.md ru: https://steelequivalents.com/ru/материалы/afnor/х40crmov5.md tr: https://steelequivalents.com/tr/malzemeler/afnor/kh40crmov5.md zh: https://steelequivalents.com/zh/材料/afnor/kh40crmov5.md ja: https://steelequivalents.com/ja/材料/afnor/kh40crmov5.md ar: https://steelequivalents.com/ar/المواد/afnor/kh40crmov5.md ko: https://steelequivalents.com/ko/재료/afnor/kh40crmov5.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor/kh40crmov5.md hi: https://steelequivalents.com/hi/सामग्री/afnor/kh40crmov5.md content_hash: sha256:61061aa77636b3a9517534a67d2de09d77a4572bdbb3183acdb06c7f855b1323 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/afnor/kh40crmov5 > Canonical URL: https://steelequivalents.com/materials/afnor/kh40crmov5 > 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. AFNOR · France · 49 designations # Х40CrMoV5 Х40CrMoV5 is a designation in AFNOR for the material held under material number 1.2344, also listed as X40CrMoV5-1. It is a material in the category Tool steels for hot work. We list 49 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, SS, ČSN, STN, SRPS, PN, MSZ, STAS, BDS, ÖNORM and KS. - [*Material no.* **1.2344**](/materials/material-no/1.2344 "Material no.: 1.2344") - [*Category* **Tool steels for hot work · 37 grades**](/categories/tool-steels-for-hot-work "Category: Tool steels for hot work · 37 grades") - *Designations* **49** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=7a8bebfc-8af7-43bc-868c-a2ca355f1b01&designation=34805913-c8d2-4093-8c92-608b77f97582 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/kh40crmov5.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X40CrMoV5-1 This grade’s own name](/materials/din-en/x40crmov5-1 "DIN / EN X40CrMoV5-1") - [UNS T20813 This grade’s own name · 2 grades on that route](/materials/uns/t20813 "UNS T20813") - [AISI / SAE H13 This grade’s own name · 2 grades on that route](/materials/aisi-sae/h13 "AISI / SAE H13") ## About Tool steels for hot work Tool steels for hot work are alloy steels designed for tooling that operates in contact with heated metal. They are characterised by hot hardness, wear resistance, toughness and resistance to thermal fatigue, making them suitable for dies, moulds, punches and other forging, extrusion and die-casting tools. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 49 designations · 21 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 - [1.2344 Indicative](/materials/material-no/1.2344 "DIN / EN 1.2344") - [X40CrMoV5-1 This grade’s own name](/materials/din-en/x40crmov5-1 "DIN / EN X40CrMoV5-1") UNS United States · 2 - [T20811 Indicative](/materials/uns/t20811 "UNS T20811") - [T20813 This grade’s own name](/materials/uns/t20813 "UNS T20813") AISI / SAE United States · 6 - [ASTM H13 Indicative](/materials/aisi-sae/astm-h13 "AISI / SAE ASTM H13") - [H11 Indicative](/materials/aisi-sae/h11 "AISI / SAE H11") - [H13 This grade’s own name](/materials/aisi-sae/h13 "AISI / SAE H13") - [H13 ASTM H13 Indicative](/materials/aisi-sae/h13-astm-h13 "AISI / SAE H13 ASTM H13") - [T20811 Indicative](/materials/uns/t20811 "AISI / SAE T20811") - [T20813 Indicative](/materials/uns/t20813 "AISI / SAE T20813") BS United Kingdom · 2 - [2344 Indicative](/materials/bs/2344 "BS 2344") - [BH13 Indicative](/materials/bs/bh13 "BS BH13") AFNOR France · 3 - [Z40CDV5 Indicative](/materials/afnor/z40cdv5 "AFNOR Z40CDV5") - [Z40CDV5-1 Indicative](/materials/afnor/z40cdv5-1 "AFNOR Z40CDV5-1") - **Х40CrMoV5 Indicative** UNE Spain · 4 - [F.5318 Indicative](/materials/une/f-5318 "UNE F.5318") - [F.5318X40CrMoV5 Indicative](/materials/une/f-5318x40crmov5 "UNE F.5318X40CrMoV5") - [X40CrMoV5 Indicative](/materials/une/x40crmov5 "UNE X40CrMoV5") - **Х40CrMoV5 Indicative** ISO International · 3 - [40CrMoV5 Indicative](/materials/iso/40crmov5 "ISO 40CrMoV5") - [X37CrMoV5-1 Indicative](/materials/din-en/x37crmov5-1 "ISO X37CrMoV5-1") - [X40CrMoV5-1 Indicative](/materials/din-en/x40crmov5-1 "ISO X40CrMoV5-1") JIS Japan · 1 - [SKD61 Indicative](/materials/jis/skd61 "JIS SKD61") GB China · 3 - [40CrMoV5 Indicative](/materials/iso/40crmov5 "GB 40CrMoV5") - [4Cr5MoSiV1 Indicative](/materials/gb/4cr5mosiv1 "GB 4Cr5MoSiV1") - [SM4Cr5MoSiV1 Indicative](/materials/gb/sm4cr5mosiv1 "GB SM4Cr5MoSiV1") GOST Russia / CIS · 5 - [4Ch5MF1S Indicative](/materials/gost/4ch5mf1s "GOST 4Ch5MF1S") - [4KH5MF1S Indicative](/materials/gost/4kh5mf1s "GOST 4KH5MF1S") - [4Kh5MFS Indicative](/materials/gost/4kh5mfs "GOST 4Kh5MFS") - [4Х5МФ1С Indicative](/materials/gost/4kh5mf1s "GOST 4Х5МФ1С") - [ЭП572 Indicative](/materials/gost/ep572 "GOST ЭП572") UNI Italy · 4 - [UD14 Indicative](/materials/uni/ud14 "UNI UD14") - [X35CrMoV05KU Indicative](/materials/uni/x35crmov05ku "UNI X35CrMoV05KU") - [X40CrMoV51KU Indicative](/materials/uni/x40crmov51ku "UNI X40CrMoV51KU") - [Х40CrMoV5-1-1KU Indicative](/materials/uni/kh40crmov5-1-1ku "UNI Х40CrMoV5-1-1KU") SS Sweden · 2 - [2214 Indicative](/materials/gost/2214 "SS 2214") - [2242 Indicative](/materials/ss/2242 "SS 2242") ČSN Czechia · 1 - [19554 Indicative](/materials/csn/19554 "ČSN 19554") STN Slovakia · 1 - [19 554 Indicative](/materials/csn/19554 "STN 19 554") SRPS Serbia · 1 - [Č.4753 Indicative](/materials/srps/c-4753 "SRPS Č.4753") PN Poland · 3 - [L40H5MF Indicative](/materials/pn/l40h5mf "PN L40H5MF") - [WCL Indicative](/materials/pn/wcl "PN WCL") - [WCLV Indicative](/materials/pn/wclv "PN WCLV") MSZ Hungary · 2 - [K13 Indicative](/materials/msz/k13 "MSZ K13") - [K13K Indicative](/materials/msz/k13k "MSZ K13K") STAS Romania · 1 - [40VSiMoCr52 Indicative](/materials/stas/40vsimocr52 "STAS 40VSiMoCr52") BDS Bulgaria · 1 - [X40CrMoV5-1 Indicative](/materials/din-en/x40crmov5-1 "BDS X40CrMoV5-1") ÖNORM Austria · 1 - [W302 Indicative](/materials/onorm/w302 "ÖNORM W302") KS South Korea · 1 - [STD61 Indicative](/materials/ks/std61 "KS STD61") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Cr Mo Si Iron — the balance, never listed by a standard — 90.7 % Cr — 5.2 % Mo — 1.4 % Si — 1 % Traces & impurities · 1.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.35–0.42 | | Si | 0.8–1.2 | | Mn | 0.25–0.5 | | P | 0.03 | | S | 0.02 | | Cr | 4.8–5.5 | | Mo | 1.2–1.5 | | V | 0.85–1.15 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 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 | 0,35-0,42 | 0.350 | 0.420 | Range | | Si | 0,80-1,20 | 0.800 | 1.200 | Range | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,02 | 0.020 | 0.020 | Exact | | V | 0,85-1,15 | 0.850 | 1.150 | Range | | Cr | 4,80-5,50 | 4.800 | 5.500 | Range | | Mn | 0,25-0,50 | 0.250 | 0.500 | Range | | Mo | 1,20-1,50 | 1.200 | 1.500 | 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: Ni. ## Physical & mechanical properties Density 7,78 g/cm³ Exact Transformation point Ac1 875 °C Exact Transformation point Ac3 935 °C Exact · Ac3(Acm) Transformation point Ar3 815 °C Exact · Ar3(Arcm) Transformation point Ar1 760 °C 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. ## Properties by condition 5 conditions · 42 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | HB | HRC | |---|---|---| | Annealed | 229 | — | | Quenched and tempered | — | 50 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 229 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Quenching 1020°C, oil, Drawing 580°C, 2h | 1670 | 1470 | 10 | 40 | 390 | By delivery state**no delivery state stated** source `splav` | Delivery state | HB | |---|---| | 4KH5MF1S ( 4Х5МФ1С ) (annealing) , GOST 5950-2000 | 241 | At temperature**no delivery state stated** source `splav` | Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal conductivity W/(m·K) | Electrical resistivity nΩ·m | |---|---|---|---|---| | 20 | 7.716 | 207 | 22 | 553 | | 100 | 7.692 | — | 25 | 591 | | 200 | 7.66 | — | 27 | 649 | | 300 | 7.627 | 187 | 29 | 715 | | 400 | 7.593 | — | 30 | 793 | | 500 | 7.559 | — | 31 | 879 | | 600 | 7.523 | 160 | 31 | 970 | | 700 | 7.49 | — | 31 | 1077 | | 800 | 7.459 | — | 31 | 1189 | | 900 | 7.438 | — | 32 | 1229 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Heat treatment Supply condition - Quenching Test specimen - Annealing Supply condition Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMzUyNDQ_ "Source: www.caishuku.com") ## 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 / Mo 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. [X37CrMoV5-1 1.2343 Cr 4,80-5,50 · Mo 1,10-1,50 - ΔCr 0.00 - ΔMo 0.05 - 42 designations](/materials/din-en/x37crmov5-1 "X37CrMoV5-1")[X35CrWMoV5 1.2605 Cr 4,75-5,50 · Mo 1,25-1,60 - ΔCr 0.03 - ΔMo 0.07 - 7 designations](/materials/din-en/x35crwmov5 "X35CrWMoV5")[X50CrMoV5-1 1.2345 Cr 4,80-5,20 · Mo 1,25-1,45 - ΔCr 0.15 - ΔMo 0.00 - 4 designations](/materials/din-en/x50crmov5-1 "X50CrMoV5-1")[X37CrMoW5-1 1.2606 Cr 5,00-5,60 · Mo 1,30-1,60 - ΔCr 0.15 - ΔMo 0.10 - 11 designations](/materials/din-en/x37crmow5-1 "X37CrMoW5-1")[X35CrMoV5-1-1 1.2342 Cr 4,50-5,50 · Mo 1,00-1,20 - ΔCr 0.15 - ΔMo 0.25 - 1 designations](/materials/din-en/x35crmov5-1-1 "X35CrMoV5-1-1") ## 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=7a8bebfc-8af7-43bc-868c-a2ca355f1b01&designation=34805913-c8d2-4093-8c92-608b77f97582 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/kh40crmov5.pdf "Datasheet as PDF")