--- title: "KS steel grades — 823 designations" description: "Steel grades designated under KS, with chemical composition, mechanical properties and equivalents in other standards. 823 designations across 764…" canonical: https://steelequivalents.com/materials/ks language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/ks.md cs: https://steelequivalents.com/cs/materiály/ks.md de: https://steelequivalents.com/de/werkstoffe/ks.md es: https://steelequivalents.com/es/materiales/ks.md fr: https://steelequivalents.com/fr/matériaux/ks.md hu: https://steelequivalents.com/hu/anyagok/ks.md it: https://steelequivalents.com/it/materiali/ks.md nl: https://steelequivalents.com/nl/materialen/ks.md pl: https://steelequivalents.com/pl/materiały/ks.md pt: https://steelequivalents.com/pt/materiais/ks.md ru: https://steelequivalents.com/ru/материалы/ks.md tr: https://steelequivalents.com/tr/malzemeler/ks.md zh: https://steelequivalents.com/zh/材料/ks.md ja: https://steelequivalents.com/ja/材料/ks.md ar: https://steelequivalents.com/ar/المواد/ks.md ko: https://steelequivalents.com/ko/재료/ks.md pt-br: https://steelequivalents.com/pt-br/materiais/ks.md hi: https://steelequivalents.com/hi/सामग्री/ks.md content_hash: sha256:9886f8e5457b6b0fd833686b7f8879a48779b91136fad0e599079e13ea45dd88 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/ks > Canonical URL: https://steelequivalents.com/materials/ks > 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. KS · 823 grades # KS steel grades — 823 designations Every grade designated under KS, with the identifying and comparative data we hold for each. Open a grade for its full composition, properties and its designations in other standards. Unless marked, every name here is an asserted identity — the same grade under this standard’s own designation. 3 of 50 rows differ and carry an “Indicative” mark. ## Also known as 823 designations | Grade | Category | C% by weight | |---|---|---| | [CF10](/materials/ks/cf10 "CF10") | Heat-resistant cast steels | 0.04–0.1 | | [CF10M](/materials/ks/cf10m "CF10M") | Heat-resistant cast steels | 0.04–0.1 | | [CF10MC](/materials/ks/cf10mc "CF10MC") | Heat-resistant cast steels | — | | [CF10SMnN](/materials/ks/cf10smnn "CF10SMnN") | Heat-resistant cast steels | ≤ 0.01 | | [HRS1](/materials/ks/hrs1 "HRS1") | Sheet metal and slit strip | ≤ 0.1 | | [HRS2](/materials/ks/hrs2 "HRS2") | Sheet metal and slit strip | ≤ 0.18 | | [HRS3](/materials/ks/hrs3 "HRS3") | Sheet metal and slit strip | ≤ 0.25 | | [HRS4](/materials/ks/hrs4 "HRS4") | Sheet metal and slit strip | ≤ 0.3 | | [HRSC13A](/materials/ks/hrsc13a "HRSC13A") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [HRSC16](/materials/ks/hrsc16 "HRSC16") | Heat-resistant cast steels | 0.2–0.35 | | [HRSC17](/materials/ks/hrsc17 "HRSC17") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [HRSC21](/materials/ks/hrsc21 "HRSC21") | Heat-resistant cast steels | 0.25–0.35 | | [HRSC22](/materials/ks/hrsc22 "HRSC22") | — | 0.35–0.45 | | [HSWR27](/materials/ks/hswr27 "HSWR27") | — | 0.24–0.31 | | [HSWR32](/materials/ks/hswr32 "HSWR32") | — | 0.29–0.36 | | [HSWR37](/materials/ks/hswr37 "HSWR37") | — | 0.34–0.41 | | [HSWR42A](/materials/ks/hswr42a "HSWR42A") | — | 0.39–0.46 | | [HSWR42B](/materials/ks/hswr42b "HSWR42B") | — | 0.39–0.46 | | [HSWR47A](/materials/ks/hswr47a "HSWR47A") | — | 0.44–0.51 | | [HSWR47B](/materials/ks/hswr47b "HSWR47B") | — | 0.44–0.51 | | [HSWR52A](/materials/ks/hswr52a "HSWR52A") | — | 0.49–0.56 | | [HSWR52B](/materials/ks/hswr52b "HSWR52B") | — | 0.49–0.56 | | [HSWR57A](/materials/ks/hswr57a "HSWR57A") | — | 0.54–0.61 | | [HSWR57B](/materials/ks/hswr57b "HSWR57B") | — | 0.54–0.61 | | [HSWR62A](/materials/ks/hswr62a "HSWR62A") | — | 0.59–0.66 | | [HSWR62B](/materials/ks/hswr62b "HSWR62B") | — | 0.59–0.66 | | [HSWR67A](/materials/ks/hswr67a "HSWR67A") | — | 0.64–0.71 | | [HSWR67B](/materials/ks/hswr67b "HSWR67B") | — | 0.64–0.71 | | [HSWR72A](/materials/ks/hswr72a "HSWR72A") | — | 0.69–0.76 | | [HSWR72B](/materials/ks/hswr72b "HSWR72B") | — | 0.69–0.76 | | [HSWR77A](/materials/ks/hswr77a "HSWR77A") | — | 0.74–0.81 | | [HSWR77B](/materials/ks/hswr77b "HSWR77B") | — | 0.74–0.81 | | [HSWR82A](/materials/ks/hswr82a "HSWR82A") | — | 0.79–0.86 | | [HSWR82B](/materials/ks/hswr82b "HSWR82B") | — | 0.79–0.86 | | [Incoloy800](/materials/ks/incoloy800 "Incoloy800") | Nickel and cobalt alloys | — | | [Inconel600](/materials/ks/inconel600 "Inconel600") | Nickel and cobalt alloys | ≤ 0.15 | | [Inconel718](/materials/ks/inconel718 "Inconel718") | Nickel and cobalt alloys | — | | [InconelX750](/materials/ks/inconelx750 "InconelX750") | Nickel and cobalt alloys | — | | [NCF600](/materials/jis/ncf600 "NCF600") | Nickel and cobalt alloys | ≤ 0.15 | | [NCF600TB](/materials/jis/ncf600tb "NCF600TB") | Nickel and cobalt alloys | ≤ 0.15 | | [NCF600TP](/materials/jis/ncf600tp "NCF600TP") | Nickel and cobalt alloys | ≤ 0.15 | | [NCF601](/materials/jis/ncf601 "NCF601") | Nickel and cobalt alloys | ≤ 0.1 | | [NCF625](/materials/jis/ncf625 "NCF625") | Nickel and cobalt alloys | ≤ 0.1 | | [NCF625TB](/materials/jis/ncf625tb "NCF625TB") | Nickel and cobalt alloys | ≤ 0.1 | | [NCF625TP](/materials/jis/ncf625tp "NCF625TP") | Nickel and cobalt alloys | ≤ 0.1 | | [NCF690](/materials/jis/ncf690 "NCF690") | Nickel and cobalt alloys | ≤ 0.05 | | [NCF690TB](/materials/jis/ncf690tb "NCF690TB") | Nickel and cobalt alloys | ≤ 0.05 | | [NCF690TP](/materials/jis/ncf690tp "NCF690TP") | Nickel and cobalt alloys | ≤ 0.05 | | [NCF718](/materials/jis/ncf718 "NCF718") | Nickel and cobalt alloys | ≤ 0.08 | | [NCF718](/materials/jis/ncf718 "NCF718") Indicative | High-temperature steels | 0.02–0.08 | **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. Page 1 of 17[Next](/materials/ks/page/2 "Next")