--- title: "52SiCrMnNi — composition, equivalents and standards" description: "52SiCrMnNi is a designation in GB for the grade also listed as 52SiCrNi5. We list 2 designations recorded for this grade, in the standards DIN / EN and GB." canonical: https://steelequivalents.com/materials/gb/52sicrmnni language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/52sicrmnni.md cs: https://steelequivalents.com/cs/materiály/gb/52sicrmnni.md de: https://steelequivalents.com/de/werkstoffe/gb/52sicrmnni.md es: https://steelequivalents.com/es/materiales/gb/52sicrmnni.md fr: https://steelequivalents.com/fr/matériaux/gb/52sicrmnni.md hu: https://steelequivalents.com/hu/anyagok/gb/52sicrmnni.md it: https://steelequivalents.com/it/materiali/gb/52sicrmnni.md nl: https://steelequivalents.com/nl/materialen/gb/52sicrmnni.md pl: https://steelequivalents.com/pl/materiały/gb/52sicrmnni.md pt: https://steelequivalents.com/pt/materiais/gb/52sicrmnni.md ru: https://steelequivalents.com/ru/материалы/gb/52sicrmnni.md tr: https://steelequivalents.com/tr/malzemeler/gb/52sicrmnni.md zh: https://steelequivalents.com/zh/材料/gb/52sicrmnni.md ja: https://steelequivalents.com/ja/材料/gb/52sicrmnni.md ar: https://steelequivalents.com/ar/المواد/gb/52sicrmnni.md ko: https://steelequivalents.com/ko/재료/gb/52sicrmnni.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/52sicrmnni.md hi: https://steelequivalents.com/hi/सामग्री/gb/52sicrmnni.md content_hash: sha256:7ef1d24d4bd8ebc89f243a5f00cede9b67da272d54ec4dc341e2e0887bf482d7 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/gb/52sicrmnni > Canonical URL: https://steelequivalents.com/materials/gb/52sicrmnni > 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 · 2 designations # 52SiCrMnNi 52SiCrMnNi is a designation in GB for the grade also listed as 52SiCrNi5. We list 2 designations recorded for this grade, in the standards DIN / EN and GB. - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3cfb8686-952c-46dc-99da-f764bd90a169&designation=95f5a423-3e58-427e-8248-ce89d966f316 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/52sicrmnni.pdf "Datasheet as PDF") ## Also known as 2 designations · 2 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 - [52SiCrNi5 Indicative](/materials/din-en/52sicrni5 "DIN / EN 52SiCrNi5") GB China · 1 - **52SiCrMnNi This grade’s own name** 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 Si Mn Cr Iron — the balance, never listed by a standard — 95.6 % Si — 1.4 % Mn — 0.9 % Cr — 0.9 % Traces & impurities · 1.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.49–0.56 | | Si | 1.2–1.5 | | Mn | 0.7–1 | | P | ≤ 0.025 | | S | ≤ 0.02 | | Cr | 0.7–1 | | Ni | 0.5–0.7 | | Cu | ≤ 0.2 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 | 0.49-0.56 | 0.490 | 0.560 | Range | | Si | 1.2-1.5 | 1.200 | 1.500 | Range | | P | ≤0.025 | — | 0.025 | Max | | S | ≤0.02 | — | 0.020 | Max | | Cr | 0.7-1 | 0.700 | 1.000 | Range | | Mn | 0.7-1 | 0.700 | 1.000 | Range | | Ni | 0.5-0.7 | 0.500 | 0.700 | Range | | Cu | ≤0.2 | — | 0.200 | Max | 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 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 0 conditions · 0 values 4 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition. ## Heat treatment Supply condition - Quenching and Tempering - Soft annealing - Stress relieving 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/azhlNWIxMTQwOTE_ "Source: www.caishuku.com") ## 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=3cfb8686-952c-46dc-99da-f764bd90a169&designation=95f5a423-3e58-427e-8248-ce89d966f316 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/52sicrmnni.pdf "Datasheet as PDF")