--- title: "18CrMo45KW — Case hardening steels" description: "18CrMo45KW in UNI: material number 1.7262, also listed as 15CrMo5. Category: Case hardening steels. Designations recorded for this grade: 63." canonical: https://steelequivalents.com/materials/uni/18crmo45kw language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/uni/18crmo45kw.md cs: https://steelequivalents.com/cs/materiály/uni/18crmo45kw.md de: https://steelequivalents.com/de/werkstoffe/uni/18crmo45kw.md es: https://steelequivalents.com/es/materiales/uni/18crmo45kw.md fr: https://steelequivalents.com/fr/matériaux/uni/18crmo45kw.md hu: https://steelequivalents.com/hu/anyagok/uni/18crmo45kw.md it: https://steelequivalents.com/it/materiali/uni/18crmo45kw.md nl: https://steelequivalents.com/nl/materialen/uni/18crmo45kw.md pl: https://steelequivalents.com/pl/materiały/uni/18crmo45kw.md pt: https://steelequivalents.com/pt/materiais/uni/18crmo45kw.md ru: https://steelequivalents.com/ru/материалы/uni/18crmo45kw.md tr: https://steelequivalents.com/tr/malzemeler/uni/18crmo45kw.md zh: https://steelequivalents.com/zh/材料/uni/18crmo45kw.md ja: https://steelequivalents.com/ja/材料/uni/18crmo45kw.md ar: https://steelequivalents.com/ar/المواد/uni/18crmo45kw.md ko: https://steelequivalents.com/ko/재료/uni/18crmo45kw.md pt-br: https://steelequivalents.com/pt-br/materiais/uni/18crmo45kw.md hi: https://steelequivalents.com/hi/सामग्री/uni/18crmo45kw.md content_hash: sha256:f9733a5222ab38a7a572bd66c3a5525a58dc22c99b7b7735f690f6e39a688616 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/uni/18crmo45kw > Canonical URL: https://steelequivalents.com/materials/uni/18crmo45kw > 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. UNI · Italy · 63 designations # 18CrMo45KW 18CrMo45KW is a designation in UNI for the material held under material number 1.7262, also listed as 15CrMo5. It is a material in the category Case hardening steels. We list 63 designations recorded for this grade, in the standards DIN / EN, AISI / SAE, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN, PN, SRPS, MSZ, STAS, BDS, ÖNORM, NBN and KS. - [*Material no.* **1.7262**](/materials/material-no/1.7262 "Material no.: 1.7262") - [*Category* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades") - *Designations* **63** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=dcf9dca3-8a80-4836-a128-50442c1f9faa&designation=3fe85867-8d78-4621-bf2f-75a726fb99dc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uni/18crmo45kw.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 15CrMo5 This grade’s own name](/materials/din-en/15crmo5 "DIN / EN 15CrMo5") ## About Case hardening steels Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 63 designations · 19 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 - [1.7262 Indicative](/materials/material-no/1.7262 "DIN / EN 1.7262") - [15CrMo5 This grade’s own name](/materials/din-en/15crmo5 "DIN / EN 15CrMo5") AISI / SAE United States · 8 - [A387Gr.12Cl.2 Indicative](/materials/aisi-sae/a387gr-12cl-2 "AISI / SAE A387Gr.12Cl.2") - [K11562 Indicative](/materials/uns/k11562 "AISI / SAE K11562") - [K11564 Indicative](/materials/uns/k11564 "AISI / SAE K11564") - [K11572 Indicative](/materials/uns/k11572 "AISI / SAE K11572") - [K11597 Indicative](/materials/uns/k11597 "AISI / SAE K11597") - [K11757 Indicative](/materials/uns/k11757 "AISI / SAE K11757") - [K11789 Indicative](/materials/uns/k11789 "AISI / SAE K11789") - [K12062 Indicative](/materials/uns/k12062 "AISI / SAE K12062") BS United Kingdom · 6 - [13CrMo4-5 Indicative](/materials/din-en/13crmo4-5 "BS 13CrMo4-5") - [1501-620 Indicative](/materials/bs/1501-620 "BS 1501-620") - [1501-621 Indicative](/materials/bs/1501-621 "BS 1501-621") - [620-440 Indicative](/materials/bs/620-440 "BS 620-440") - [620-470 Indicative](/materials/bs/620-470 "BS 620-470") - [620-540 Indicative](/materials/bs/620-540 "BS 620-540") AFNOR France · 6 - [12CD4 Indicative](/materials/afnor/12cd4 "AFNOR 12CD4") - [13CrMo4-5 Indicative](/materials/din-en/13crmo4-5 "AFNOR 13CrMo4-5") - [14CrMo4-5 Indicative](/materials/afnor/14crmo45 "AFNOR 14CrMo4-5") - [15CD3.5 Indicative](/materials/afnor/15cd3-5 "AFNOR 15CD3.5") - [15CD4.05 Indicative](/materials/afnor/15cd4-05 "AFNOR 15CD4.05") - [15CD4.5 Indicative](/materials/afnor/15cd4-5 "AFNOR 15CD4.5") UNE Spain · 3 - [12CrMo4 Indicative](/materials/din-en/12crmo4 "UNE 12CrMo4") - [14CrMo4-5 Indicative](/materials/afnor/14crmo45 "UNE 14CrMo4-5") - [F.2631 Indicative](/materials/une/f-2631 "UNE F.2631") JIS Japan · 8 - [SCM415 Indicative](/materials/jis/scm415 "JIS SCM415") - [SCM415H Indicative](/materials/jis/scm415h "JIS SCM415H") - [SFVAF12 Indicative](/materials/jis/sfvaf12 "JIS SFVAF12") - [STBA20 Indicative](/materials/jis/stba20 "JIS STBA20") - [STBA22 Indicative](/materials/jis/stba22 "JIS STBA22") - [STFA22 Indicative](/materials/jis/stfa22 "JIS STFA22") - [STPA20 Indicative](/materials/jis/stpa20 "JIS STPA20") - [STPA22 Indicative](/materials/jis/stpa22 "JIS STPA22") GB China · 5 - [12CrMo Indicative](/materials/gb/12crmo "GB 12CrMo") - [12CrMoG Indicative](/materials/gb/12crmog "GB 12CrMoG") - [15CrMo Indicative](/materials/gb/15crmo "GB 15CrMo") - [15CrMog Indicative](/materials/gb/15crmog "GB 15CrMog") - [15CrMoR Indicative](/materials/gb/15crmor "GB 15CrMoR") GOST Russia / CIS · 2 - [15KhM Indicative](/materials/gost/15khm "GOST 15KhM") - [15ХМ Indicative](/materials/gost/15khm "GOST 15ХМ") UNI Italy · 7 - [13CrMo4-5 Indicative](/materials/din-en/13crmo4-5 "UNI 13CrMo4-5") - [14CrMo3 Indicative](/materials/uni/14crmo3 "UNI 14CrMo3") - [16CrMo3 Indicative](/materials/uni/16crmo3 "UNI 16CrMo3") - [18CrMo45KG Indicative](/materials/uni/18crmo45kg "UNI 18CrMo45KG") - **18CrMo45KW Indicative** - [A18CrMo4-5KW Indicative](/materials/uni/a18crmo4-5kw "UNI A18CrMo4-5KW") - [B18CrMo4-5KG Indicative](/materials/uni/b18crmo4-5kg "UNI B18CrMo4-5KG") SS Sweden · 1 - [2216 Indicative](/materials/gost/2216 "SS 2216") ČSN Czechia · 1 - [15121 Indicative](/materials/csn/15121 "ČSN 15121") PN Poland · 2 - [15HM Indicative](/materials/pn/15hm "PN 15HM") - [18HGM Indicative](/materials/pn/18hgm "PN 18HGM") SRPS Serbia · 1 - [Č.4720 Indicative](/materials/srps/c-4720 "SRPS Č.4720") MSZ Hungary · 2 - [13CrMo4-5 Indicative](/materials/din-en/13crmo4-5 "MSZ 13CrMo4-5") - [KL9 Indicative](/materials/msz/kl9 "MSZ KL9") STAS Romania · 1 - [14CrMo4 Indicative](/materials/stas/14crmo4 "STAS 14CrMo4") BDS Bulgaria · 3 - [13CrMo4-5 Indicative](/materials/din-en/13crmo4-5 "BDS 13CrMo4-5") - [14ChM Indicative](/materials/bds/14chm "BDS 14ChM") - [15ChM Indicative](/materials/bds/15chm "BDS 15ChM") ÖNORM Austria · 1 - [13CrMo4-4KW Indicative](/materials/onorm/13crmo4-4kw "ÖNORM 13CrMo4-4KW") NBN Belgium · 1 - [14CrMo45 Indicative](/materials/afnor/14crmo45 "NBN 14CrMo45") KS South Korea · 3 - [SFVAF12 Indicative](/materials/jis/sfvaf12 "KS SFVAF12") - [STHA20 Indicative](/materials/ks/stha20 "KS STHA20") - [STHA22 Indicative](/materials/ks/stha22 "KS STHA22") 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 — 97.2 % Cr — 1.2 % Mn — 1 % 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 | 0.13–0.17 | | Si | 0.15–0.35 | | Mn | 0.8–1.1 | | P | 0.035 | | S | 0.035 | | Cr | 1–1.3 | | Mo | 0.2–0.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 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 | 0,13-0,17 | 0.130 | 0.170 | Range | | Si | 0,15-0,35 | 0.150 | 0.350 | Range | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Cr | 1,00-1,30 | 1.000 | 1.300 | Range | | Mn | 0,80-1,10 | 0.800 | 1.100 | Range | | Mo | 0,20-0,30 | 0.200 | 0.300 | 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 7,85 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. ## Heat treatment **GB /T 5310-2023** Order not stated by the source - Normalizing 900–960 °C - Tempering 680–730 °C - Quenching 900 °C - Tempering 680–750 °C - Normalizing 900–960 °C - Tempering 680–730 °C The source lists these operations without stating an order or an alternation. They are shown unordered on purpose. Supply condition - Normalizing and Tempering 6≤t≤60 - Normalizing and Tempering Longitudinal 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/azhlNWIxMzM1NDQ_ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.7, 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. [20CrMo5 1.7264 Cr 1,10-1,40 · Mn 0,90-1,20 - ΔCr 0.10 - ΔMn 0.10 - 6 designations](/materials/din-en/20crmo5 "20CrMo5")[20Cr4 1.7027 Cr 0,90-1,20 · Mn 0,60-0,90 - ΔCr 0.10 - ΔMn 0.20 - 25 designations](/materials/din-en/20cr4 "20Cr4")[20CrS4 1.7028 Cr 0,90-1,20 · Mn 0,60-0,90 - ΔCr 0.10 - ΔMn 0.20 - 1 designations](/materials/din-en/20crs4 "20CrS4")[28CrS4 1.7036 Cr 0,90-1,20 · Mn 0,60-0,90 - ΔCr 0.10 - ΔMn 0.20 - 7 designations](/materials/din-en/28crs4 "28CrS4")[20MnCr5 1.7147 Cr 1,00-1,30 · Mn 1,10-1,40 - ΔCr 0.00 - ΔMn 0.30 - 45 designations](/materials/din-en/20mncr5 "20MnCr5")[20MnCrS5 1.7149 Cr 1,00-1,30 · Mn 1,10-1,40 - ΔCr 0.00 - ΔMn 0.30 - 17 designations](/materials/din-en/20mncrs5 "20MnCrS5") ## 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=dcf9dca3-8a80-4836-a128-50442c1f9faa&designation=3fe85867-8d78-4621-bf2f-75a726fb99dc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uni/18crmo45kw.pdf "Datasheet as PDF")