--- title: "X82WMoCrV6-5-4 — Bearing steels" description: "X82WMoCrV6-5-4: 3 equivalent designations across 3 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/x82wmocrv6-5-4 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/x82wmocrv6-5-4.md cs: https://steelequivalents.com/cs/materiály/din-en/x82wmocrv6-5-4.md de: https://steelequivalents.com/de/werkstoffe/din-en/x82wmocrv6-5-4.md es: https://steelequivalents.com/es/materiales/din-en/x82wmocrv6-5-4.md fr: https://steelequivalents.com/fr/matériaux/din-en/x82wmocrv6-5-4.md hu: https://steelequivalents.com/hu/anyagok/din-en/x82wmocrv6-5-4.md it: https://steelequivalents.com/it/materiali/din-en/x82wmocrv6-5-4.md nl: https://steelequivalents.com/nl/materialen/din-en/x82wmocrv6-5-4.md pl: https://steelequivalents.com/pl/materiały/din-en/x82wmocrv6-5-4.md pt: https://steelequivalents.com/pt/materiais/din-en/x82wmocrv6-5-4.md ru: https://steelequivalents.com/ru/материалы/din-en/x82wmocrv6-5-4.md tr: https://steelequivalents.com/tr/malzemeler/din-en/x82wmocrv6-5-4.md zh: https://steelequivalents.com/zh/材料/din-en/x82wmocrv6-5-4.md ja: https://steelequivalents.com/ja/材料/din-en/x82wmocrv6-5-4.md ar: https://steelequivalents.com/ar/المواد/din-en/x82wmocrv6-5-4.md ko: https://steelequivalents.com/ko/재료/din-en/x82wmocrv6-5-4.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/x82wmocrv6-5-4.md hi: https://steelequivalents.com/hi/सामग्री/din-en/x82wmocrv6-5-4.md content_hash: sha256:9182e8759d379eb29bb812ac65179077bd924c3c56014f2d681414365cf37761 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/din-en/x82wmocrv6-5-4 > Canonical URL: https://steelequivalents.com/materials/din-en/x82wmocrv6-5-4 > 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. DIN / EN · Europe · 3 designations # X82WMoCrV6-5-4 X82WMoCrV6-5-4 is a material in the category [Bearing steels](/categories/bearing-steels "Bearing steels"), held under material number 1.3553. Its recorded composition includes C 0.78–0.86%, V 1.7–2%, Cr 3.9–4.3%, Mo 4.7–5.2% and W 6–6.7%. We list 2 designations recorded for this grade, in the standards ČSN and STN. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.3553**](/materials/material-no/1.3553 "Material no.: 1.3553") - [*Category* **Bearing steels · 17 grades**](/categories/bearing-steels "Category: Bearing steels · 17 grades") - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3c2c76fb-3456-4b7d-8c54-86ccf55a15c3&designation=53d9d535-9810-453c-949f-31dd90beb60f "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x82wmocrv6-5-4.pdf "Datasheet as PDF") ## About Bearing steels Bearing steels are high-carbon steels designed for rolling-element bearings and other components exposed to repeated contact loading. They are characterised by high hardness, wear resistance and resistance to rolling-contact fatigue after suitable heat treatment. They are used for bearing rings, races and rolling elements where reliable operation under cyclic loads is required. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 3 designations · 3 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 · 1 - **X82WMoCrV6-5-4 This grade’s own name** ČSN Czechia · 1 - [19830 Indicative](/materials/csn/19830 "ČSN 19830") STN Slovakia · 1 - [19 830 Indicative](/materials/csn/19830 "STN 19 830") 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 Mo Cr Iron — the balance, never listed by a standard — 80.8 % W — 6.4 % Mo — 5 % Cr — 4.1 % Traces & impurities · 3.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.78–0.86 | | Si | ≤ 0.4 | | Mn | ≤ 0.4 | | P | 0.025 | | S | 0.015 | | Cr | 3.9–4.3 | | Mo | 4.7–5.2 | | V | 1.7–2 | | W | 6–6.7 | | Cu | ≤ 0.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 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 | 0,78-0,86 | 0.780 | 0.860 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | V | 1,70-2,00 | 1.700 | 2.000 | Range | | Cr | 3,90-4,30 | 3.900 | 4.300 | Range | | Mn | ≤0,40 | — | 0.400 | Max | | Cu | ≤0,30 | — | 0.300 | Max | | Mo | 4,70-5,20 | 4.700 | 5.200 | Range | | W | 6,00-6,70 | 6.000 | 6.700 | 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.3, a shared category, and a published range for 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. ## 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=3c2c76fb-3456-4b7d-8c54-86ccf55a15c3&designation=53d9d535-9810-453c-949f-31dd90beb60f "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x82wmocrv6-5-4.pdf "Datasheet as PDF")