--- title: "HG5188 — CoCr22NiW, 12 equivalent designations" description: "HG5188 in GB: material number 2.4683, also listed as CoCr22NiW. It is a material in the category Others. Designations recorded for this grade: 12." canonical: https://steelequivalents.com/materials/gb/hg5188 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/hg5188.md cs: https://steelequivalents.com/cs/materiály/gb/hg5188.md de: https://steelequivalents.com/de/werkstoffe/gb/hg5188.md es: https://steelequivalents.com/es/materiales/gb/hg5188.md fr: https://steelequivalents.com/fr/matériaux/gb/hg5188.md hu: https://steelequivalents.com/hu/anyagok/gb/hg5188.md it: https://steelequivalents.com/it/materiali/gb/hg5188.md nl: https://steelequivalents.com/nl/materialen/gb/hg5188.md pl: https://steelequivalents.com/pl/materiały/gb/hg5188.md pt: https://steelequivalents.com/pt/materiais/gb/hg5188.md ru: https://steelequivalents.com/ru/материалы/gb/hg5188.md tr: https://steelequivalents.com/tr/malzemeler/gb/hg5188.md zh: https://steelequivalents.com/zh/材料/gb/hg5188.md ja: https://steelequivalents.com/ja/材料/gb/hg5188.md ar: https://steelequivalents.com/ar/المواد/gb/hg5188.md ko: https://steelequivalents.com/ko/재료/gb/hg5188.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/hg5188.md hi: https://steelequivalents.com/hi/सामग्री/gb/hg5188.md content_hash: sha256:d857dd16ce28d0ed52eea6fc11cfa4e60b9f1953b012f2caccada52b5907952e 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/gb/hg5188 > Canonical URL: https://steelequivalents.com/materials/gb/hg5188 > 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. GB · China · 12 designations # HG5188 HG5188 is a designation in GB for the material held under material number 2.4683, also listed as CoCr22NiW. It is a material in the category Others. We list 12 designations recorded for this grade, in the standards DIN / EN, UNS, SAE AMS, GB and GOST. - [*Material no.* **2.4683**](/materials/material-no/2.4683 "Material no.: 2.4683") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **12** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3156207f-2560-43a0-a8b0-5e4490044c50&designation=3fdedb84-d803-4436-a24b-067837b108cd "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/hg5188.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN CoCr22NiW This grade’s own name](/materials/din-en/cocr22niw "DIN / EN CoCr22NiW") - [UNS R30188 This grade’s own name](/materials/uns/r30188 "UNS R30188") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 12 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 · 1 - [CoCr22NiW This grade’s own name](/materials/din-en/cocr22niw "DIN / EN CoCr22NiW") UNS United States · 1 - [R30188 This grade’s own name](/materials/uns/r30188 "UNS R30188") SAE AMS United States / Aerospace · 3 - [5608 Indicative plate sheet strip](/materials/ams/5608 "SAE AMS 5608") - [5772 Indicative bar forging ring](/materials/ams/5772 "SAE AMS 5772") - [5801 Indicative wire](/materials/ams/5801 "SAE AMS 5801") GB China · 3 - [GB/T14922-2005 Indicative](/materials/gb/gb-t14922-2005 "GB GB/T14922-2005") - [GH188 Indicative](/materials/gb/gh188 "GB GH188") - **HG5188 Indicative** GOST Russia / CIS · 4 - [ChN33KVJu Indicative](/materials/gost/chn33kvju "GOST ChN33KVJu") - [EK102 Indicative](/materials/gost/ek102 "GOST EK102") - [GOST5632-2014 Indicative](/materials/gost/gost5632-2014 "GOST GOST5632-2014") - [VZh145 Indicative](/materials/gost/vzh145 "GOST VZh145") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 11 elements on file · weight % What this alloy is Fe Cr Ni W Iron — the balance, never listed by a standard — 39.7 % Cr — 22 % Ni — 22 % W — 14.5 % Traces & impurities · 1.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.05–0.15 | | Si | 0.2–0.5 | | Mn | ≤ 1.25 | | P | 0.02 | | S | 0.015 | | Cr | 20–24 | | Ni | 20–24 | | W | 13–16 — Unusual | | Co | Balance | | Fe | ≤ 3 | | La | 0.02–0.12 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Tungsten Cobalt Iron Lanthanum 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 | 0,05-0,15 | 0.050 | 0.150 | Range | | Si | 0,20-0,50 | 0.200 | 0.500 | Range | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 20,0-24,0 | 20.000 | 24.000 | Range | | Mn | ≤1,25 | — | 1.250 | Max | | Fe | ≤3,00 | — | 3.000 | Max | | Co | Rest/Bal. | 30.945 | 46.695 | Balance | | Ni | 20,0-24,0 | 20.000 | 24.000 | Range | | La | 0,02-0,12 | 0.020 | 0.120 | Range | | W | 13,0-16,0 | 13.000 | 16.000 | 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 Density 8,98 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 2.4, a shared category, and a published range for Co / Cr 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. [CoCr20Ni15Mo 2.4711 Co 39,0-41,0 · Cr 19,0-21,0 - ΔCo 1.18 - ΔCr 2.00 - 2 designations](/materials/din-en/cocr20ni15mo "CoCr20Ni15Mo")[MP35N 2.4999 Co Rest/Bal. · Cr ~20,0 - ΔCo 3.33 - ΔCr 2.00 - 3 designations](/materials/din-en/mp35n "MP35N") ## 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=3156207f-2560-43a0-a8b0-5e4490044c50&designation=3fdedb84-d803-4436-a24b-067837b108cd "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/hg5188.pdf "Datasheet as PDF")