--- title: "R35 — Case hardening steels" description: "R35 in PN: material number 1.0301, also listed as C10. It is a material in the category Case hardening steels. Designations recorded for this grade: 63." canonical: https://steelequivalents.com/materials/pn/r35 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/pn/r35.md cs: https://steelequivalents.com/cs/materiály/pn/r35.md de: https://steelequivalents.com/de/werkstoffe/pn/r35.md es: https://steelequivalents.com/es/materiales/pn/r35.md fr: https://steelequivalents.com/fr/matériaux/pn/r35.md hu: https://steelequivalents.com/hu/anyagok/pn/r35.md it: https://steelequivalents.com/it/materiali/pn/r35.md nl: https://steelequivalents.com/nl/materialen/pn/r35.md pl: https://steelequivalents.com/pl/materiały/pn/r35.md pt: https://steelequivalents.com/pt/materiais/pn/r35.md ru: https://steelequivalents.com/ru/материалы/pn/r35.md tr: https://steelequivalents.com/tr/malzemeler/pn/r35.md zh: https://steelequivalents.com/zh/材料/pn/r35.md ja: https://steelequivalents.com/ja/材料/pn/r35.md ar: https://steelequivalents.com/ar/المواد/pn/r35.md ko: https://steelequivalents.com/ko/재료/pn/r35.md pt-br: https://steelequivalents.com/pt-br/materiais/pn/r35.md hi: https://steelequivalents.com/hi/सामग्री/pn/r35.md content_hash: sha256:f480d2e3ae47afe13d88ead6c052311e7d9e5495067151f246e6d8a39534337a 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/pn/r35 > Canonical URL: https://steelequivalents.com/materials/pn/r35 > 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. PN · Poland · 63 designations # R35 R35 is a designation in PN for the material held under material number 1.0301, also listed as C10. It is a material in the category Case hardening steels. We list 63 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN, PN, COPANT, SRPS, MSZ, STAS, BDS, ÖNORM and SNV. - [*Material no.* **1.0301**](/materials/material-no/1.0301 "Material no.: 1.0301") - [*Category* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades") - *Designations* **63** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=39f52901-01f6-4bac-a73f-058c88c21885&designation=a483119b-dd01-495a-b686-9805e2282c2e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/pn/r35.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN C10 This grade’s own name](/materials/din-en/c10 "DIN / EN C10") - [UNS G10100 This grade’s own name · 8 grades on that route](/materials/uns/g10100 "UNS G10100") - [AISI / SAE M1010 This grade’s own name · 2 grades on that route](/materials/aisi-sae/m1010 "AISI / SAE M1010") ## About Case hardening steels Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 63 designations · 21 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 · 2 - [C10 This grade’s own name](/materials/din-en/c10 "DIN / EN C10") - [Ck10 Indicative](/materials/snv/ck10 "DIN / EN Ck10") UNS United States · 1 - [G10100 This grade’s own name](/materials/uns/g10100 "UNS G10100") AISI / SAE United States · 8 - [1010 Indicative](/materials/aisi-sae/1010 "AISI / SAE 1010") - [1011 Indicative](/materials/aisi-sae/1011 "AISI / SAE 1011") - [1012 Indicative](/materials/aisi-sae/1012 "AISI / SAE 1012") - [1110 Indicative](/materials/aisi-sae/1110 "AISI / SAE 1110") - [C1010 Indicative](/materials/aisi-sae/c1010 "AISI / SAE C1010") - [Gr.A Indicative](/materials/aisi-sae/gr-a "AISI / SAE Gr.A") - [M1010 This grade’s own name](/materials/aisi-sae/m1010 "AISI / SAE M1010") - [M1012 Indicative](/materials/aisi-sae/m1012 "AISI / SAE M1012") ASTM United States · 4 - [012 Indicative](/materials/astm/012 "ASTM 012") - [1006 Indicative](/materials/aisi-sae/1006 "ASTM 1006") - [1008 Indicative](/materials/aisi-sae/1008 "ASTM 1008") - [101 Indicative](/materials/astm/101 "ASTM 101") BS United Kingdom · 10 - [040A04 Indicative](/materials/bs/040a04 "BS 040A04") - [040A10 Indicative](/materials/bs/040a10 "BS 040A10") - [040A12 Indicative](/materials/bs/040a12 "BS 040A12") - [045A10 Indicative](/materials/bs/045a10 "BS 045A10") - [045M10 Indicative](/materials/bs/045m10 "BS 045M10") - [10CS Indicative](/materials/bs/10cs "BS 10CS") - [10HS Indicative](/materials/bs/10hs "BS 10HS") - [1449-10CS Indicative](/materials/bs/1449-10cs "BS 1449-10CS") - [CFS3 Indicative](/materials/bs/cfs3 "BS CFS3") - [CS10 Indicative](/materials/bs/cs10 "BS CS10") AFNOR France · 5 - [AF34 Indicative](/materials/afnor/af34 "AFNOR AF34") - [AF34C10 Indicative](/materials/afnor/af34c10 "AFNOR AF34C10") - [C10 Indicative](/materials/din-en/c10 "AFNOR C10") - [C10RR Indicative](/materials/afnor/c10rr "AFNOR C10RR") - [XC10 Indicative](/materials/afnor/xc10 "AFNOR XC10") UNE Spain · 1 - [F.1511 Indicative](/materials/une/f-1511 "UNE F.1511") JIS Japan · 8 - [S09CK Indicative](/materials/jis/s09ck "JIS S09CK") - [S10C Indicative](/materials/jis/s10c "JIS S10C") - [S12C Indicative](/materials/jis/s12c "JIS S12C") - [S9CK Indicative](/materials/jis/s9ck "JIS S9CK") - [SASM1 Indicative](/materials/jis/sasm1 "JIS SASM1") - [STB340 Indicative](/materials/jis/stb340 "JIS STB340") - [STKM12A Indicative](/materials/jis/stkm12a "JIS STKM12A") - [SWMR Indicative](/materials/jis/swmr "JIS SWMR") GB China · 2 - [08F Indicative](/materials/gb/08f "GB 08F") - [10 Indicative](/materials/gb/10 "GB 10") GOST Russia / CIS · 2 - [08КП Indicative](/materials/gost/08kp "GOST 08КП") - [10 Indicative](/materials/gb/10 "GOST 10") UNI Italy · 5 - [1C10 Indicative](/materials/uni/1c10 "UNI 1C10") - [2C10 Indicative](/materials/uni/2c10 "UNI 2C10") - [C10 Indicative](/materials/din-en/c10 "UNI C10") - [C14 Indicative](/materials/din-en/c14 "UNI C14") - [Fe360 Indicative](/materials/uni/fe360 "UNI Fe360") SS Sweden · 2 - [1233 Indicative](/materials/ss/1233 "SS 1233") - [1265 Indicative](/materials/ss/1265 "SS 1265") ČSN Czechia · 3 - [11353 Indicative](/materials/csn/11353 "ČSN 11353") - [12010 Indicative](/materials/csn/12010 "ČSN 12010") - [12021 Indicative](/materials/csn/12021 "ČSN 12021") PN Poland · 3 - [10 Indicative](/materials/gb/10 "PN 10") - [K10 Indicative](/materials/pn/k10 "PN K10") - **R35 Indicative** COPANT Latin America · 1 - [1010 Indicative](/materials/aisi-sae/1010 "COPANT 1010") SRPS Serbia · 1 - [Č.1120 Indicative](/materials/srps/c-1120 "SRPS Č.1120") MSZ Hungary · 1 - [C10 Indicative](/materials/din-en/c10 "MSZ C10") STAS Romania · 1 - [OLC10 Indicative](/materials/stas/olc10 "STAS OLC10") BDS Bulgaria · 1 - [10 Indicative](/materials/gb/10 "BDS 10") ÖNORM Austria · 1 - [RC12 Indicative](/materials/onorm/rc12 "ÖNORM RC12") SNV Switzerland · 1 - [C10 Indicative](/materials/din-en/c10 "SNV C10") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 5 elements on file · weight % What this alloy is Fe Mn Si C Iron — the balance, never listed by a standard — 99 % Mn — 0.4 % Si — 0.4 % C — 0.1 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.07–0.13 | | Si | ≤ 0.4 | | Mn | 0.3–0.6 | | P | 0.045 | | S | 0.045 | Carbon Silicon Manganese Phosphorus Sulfur 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 | 0,07-0,13 | 0.070 | 0.130 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,045 | 0.045 | 0.045 | Exact | | Mn | 0,30-0,60 | 0.300 | 0.600 | 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, Cr, Mo. ## 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. ## Properties by condition 2 conditions · 11 values By thickness**Cold drawn / hard** source `steelnumber` | Thickness mm | Rm N/mm² | A% | |---|---|---| | 5 – 10 | 460 – 760 | 8 | | 10 – 16 | 430 – 730 | 9 | | 16 – 40 | 400 – 700 | 10 | | 40 – 63 | 350 – 640 | 12 | | 63 – 100 | 320 – 580 | 12 | By delivery state**As rolled and turned** source `steelnumber` | Delivery state | HB | |---|---| | As rolled and turned | 92 – 163 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Heat treatment **GB 2100-1980** In this order 1. Annealing 950 °C 2. Quenching 1050 °C 3. Tempering 750 °C Cooling Water or Air Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMTQ2NzI_ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.0, a shared category, and a published range for Mn / Si 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. [C10GPb 1.0302 Mn 0,30-0,60 · Si ≤0,40 - ΔMn 0.00 - ΔSi 0.00 - 2 designations](/materials/din-en/c10gpb "C10GPb")[1.0401 1.0401 Mn 0,30-0,80 · Si ≤0,40 - ΔMn 0.10 - ΔSi 0.00 - 62 designations](/materials/material-no/1.0401 "1.0401")[C15GPb 1.0403 Mn 0,30-0,80 · Si ≤0,40 - ΔMn 0.10 - ΔSi 0.00 - 2 designations](/materials/din-en/c15gpb "C15GPb") ## 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=39f52901-01f6-4bac-a73f-058c88c21885&designation=a483119b-dd01-495a-b686-9805e2282c2e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/pn/r35.pdf "Datasheet as PDF")