--- title: "65Si2MnWA — composition, equivalents and standards" description: "65Si2MnWA: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gb/65si2mnwa language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/65si2mnwa.md cs: https://steelequivalents.com/cs/materiály/gb/65si2mnwa.md de: https://steelequivalents.com/de/werkstoffe/gb/65si2mnwa.md es: https://steelequivalents.com/es/materiales/gb/65si2mnwa.md fr: https://steelequivalents.com/fr/matériaux/gb/65si2mnwa.md hu: https://steelequivalents.com/hu/anyagok/gb/65si2mnwa.md it: https://steelequivalents.com/it/materiali/gb/65si2mnwa.md nl: https://steelequivalents.com/nl/materialen/gb/65si2mnwa.md pl: https://steelequivalents.com/pl/materiały/gb/65si2mnwa.md pt: https://steelequivalents.com/pt/materiais/gb/65si2mnwa.md ru: https://steelequivalents.com/ru/материалы/gb/65si2mnwa.md tr: https://steelequivalents.com/tr/malzemeler/gb/65si2mnwa.md zh: https://steelequivalents.com/zh/材料/gb/65si2mnwa.md ja: https://steelequivalents.com/ja/材料/gb/65si2mnwa.md ar: https://steelequivalents.com/ar/المواد/gb/65si2mnwa.md ko: https://steelequivalents.com/ko/재료/gb/65si2mnwa.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/65si2mnwa.md hi: https://steelequivalents.com/hi/सामग्री/gb/65si2mnwa.md content_hash: sha256:d6637b8b6177ab065a6a7e4dc74460c15b8fe4908e90befc29cb0b487b0050a7 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/65si2mnwa > Canonical URL: https://steelequivalents.com/materials/gb/65si2mnwa > 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 · 1 designation # 65Si2MnWA 65Si2MnWA is a grade designated under GB. Its recorded composition includes C 0.61–0.69%, Si 1.5–2%, Cr ≤ 0.35%, Mn 0.7–1% and W 0.8–1.2%. No cross-standard equivalents are recorded for this grade yet. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=33ceb2e2-ff1d-4367-b074-3f9775ac923c&designation=9c3c90b9-7a24-47ec-8260-52d4bfd236e8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/65si2mnwa.pdf "Datasheet as PDF") ## Chemical composition 6 elements on file · weight % What this alloy is Fe Si W Mn Iron — the balance, never listed by a standard — 95.2 % Si — 1.8 % W — 1 % Mn — 0.9 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.61–0.69 | | Si | 1.5–2 | | Mn | 0.7–1 | | Cr | ≤ 0.35 | | W | 0.8–1.2 | | Cu | ≤ 0.2 | Carbon Silicon Manganese Chromium 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 | 0.61-0.69 | 0.610 | 0.690 | Range | | Si | 1.5-2 | 1.500 | 2.000 | Range | | Cr | ≤0.35 | — | 0.350 | Max | | Mn | 0.7-1 | 0.700 | 1.000 | Range | | Cu | ≤0.2 | — | 0.200 | Max | | W | 0.8-1.2 | 0.800 | 1.200 | 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, 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. ## 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=33ceb2e2-ff1d-4367-b074-3f9775ac923c&designation=9c3c90b9-7a24-47ec-8260-52d4bfd236e8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/65si2mnwa.pdf "Datasheet as PDF")