--- title: "Č.4145 — Tool steels for cold work" description: "Č.4145 in SRPS: material number 1.2067, also listed as 100Cr6. Category: Tool steels for cold work. Designations recorded for this grade: 53." canonical: https://steelequivalents.com/materials/srps/c-4145 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/srps/c-4145.md cs: https://steelequivalents.com/cs/materiály/srps/c-4145.md de: https://steelequivalents.com/de/werkstoffe/srps/c-4145.md es: https://steelequivalents.com/es/materiales/srps/c-4145.md fr: https://steelequivalents.com/fr/matériaux/srps/c-4145.md hu: https://steelequivalents.com/hu/anyagok/srps/c-4145.md it: https://steelequivalents.com/it/materiali/srps/c-4145.md nl: https://steelequivalents.com/nl/materialen/srps/c-4145.md pl: https://steelequivalents.com/pl/materiały/srps/c-4145.md pt: https://steelequivalents.com/pt/materiais/srps/c-4145.md ru: https://steelequivalents.com/ru/материалы/srps/c-4145.md tr: https://steelequivalents.com/tr/malzemeler/srps/c-4145.md zh: https://steelequivalents.com/zh/材料/srps/c-4145.md ja: https://steelequivalents.com/ja/材料/srps/c-4145.md ar: https://steelequivalents.com/ar/المواد/srps/c-4145.md ko: https://steelequivalents.com/ko/재료/srps/c-4145.md pt-br: https://steelequivalents.com/pt-br/materiais/srps/c-4145.md hi: https://steelequivalents.com/hi/सामग्री/srps/c-4145.md content_hash: sha256:7b3d7357c6a2a51920405f8029ada8d5965b913c9ed2d587afdf71e34247ca50 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/srps/c-4145 > Canonical URL: https://steelequivalents.com/materials/srps/c-4145 > 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. SRPS · Serbia · 53 designations # Č.4145 Č.4145 is a designation in SRPS for the material held under material number 1.2067, also listed as 100Cr6. It is a material in the category Tool steels for cold work. We list 53 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, SAE AMS, JIS, GB, GOST, UNI, SS, ČSN, STN, SRPS, PN, MSZ, BDS, ÖNORM and KS. - [*Material no.* **1.2067**](/materials/material-no/1.2067 "Material no.: 1.2067") - [*Category* **Tool steels for cold work · 109 grades**](/categories/tool-steels-for-cold-work "Category: Tool steels for cold work · 109 grades") - *Designations* **53** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=65da1c27-9705-4d6d-b963-2bd34d29ad8f&designation=96a12b9c-fa26-485e-b5ed-8c82a99938d4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/srps/c-4145.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 102Cr6 This grade’s own name](/materials/din-en/102cr6 "DIN / EN 102Cr6") - [UNS J19965 This grade’s own name · 2 grades on that route](/materials/uns/j19965 "UNS J19965") - [AISI / SAE L3 This grade’s own name](/materials/aisi-sae/l3 "AISI / SAE L3") ## About Tool steels for cold work Cold-work tool steels are high-strength tool materials designed for shaping, cutting and forming operations carried out without significant heating of the workpiece. They are characterised by high hardness, wear resistance and the ability to retain a sharp or precise working edge, making them suitable for dies, punches, cutting tools and other tooling exposed to repeated mechanical contact. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 53 designations · 22 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 · 3 - [1.2067 Indicative](/materials/material-no/1.2067 "DIN / EN 1.2067") - [100Cr6 This grade’s own name Withdrawn](/materials/din-en/100cr6 "DIN / EN 100Cr6") - [102Cr6 This grade’s own name](/materials/din-en/102cr6 "DIN / EN 102Cr6") UNS United States · 6 - [AMS 6440 Indicative](/materials/uns/ams-6440 "UNS AMS 6440") - [G52986 Indicative](/materials/uns/g52986 "UNS G52986") - [J19965 This grade’s own name](/materials/uns/j19965 "UNS J19965") - [K23080 Indicative](/materials/uns/k23080 "UNS K23080") - [S-22141 Indicative](/materials/uns/s-22141 "UNS S-22141") - [T61203 This grade’s own name](/materials/uns/t61203 "UNS T61203") AISI / SAE United States · 5 - [52100 Indicative](/materials/aisi-sae/52100 "AISI / SAE 52100") - [E 52100 Indicative](/materials/aisi-sae/e52100 "AISI / SAE E 52100") - [L1 Indicative](/materials/gost/l1 "AISI / SAE L1") - [L3 This grade’s own name](/materials/aisi-sae/l3 "AISI / SAE L3") - [T61203 Indicative](/materials/uns/t61203 "AISI / SAE T61203") ASTM United States · 1 - [A646 Indicative](/materials/astm/a646 "ASTM A646") BS United Kingdom · 4 - [2067 Indicative](/materials/bs/2067 "BS 2067") - [534A99 Indicative](/materials/bs/534a99 "BS 534A99") - [535A99 Indicative](/materials/bs/535a99 "BS 535A99") - [BL3 Indicative](/materials/bs/bl3 "BS BL3") AFNOR France · 3 - [100Cr6 Indicative](/materials/din-en/100cr6 "AFNOR 100Cr6") - [100Cr6RR Indicative](/materials/afnor/100cr6rr "AFNOR 100Cr6RR") - [Y100C6 Indicative](/materials/afnor/y100c6 "AFNOR Y100C6") UNE Spain · 4 - [100 Indicative](/materials/bs/100 "UNE 100") - [100Cr6 Indicative](/materials/din-en/100cr6 "UNE 100Cr6") - [Cr6 Indicative](/materials/une/cr6 "UNE Cr6") - [F.5230 Indicative](/materials/une/f-5230 "UNE F.5230") ISO International · 2 - [100Cr6 Indicative](/materials/din-en/100cr6 "ISO 100Cr6") - [3505 Indicative](/materials/iso/3505 "ISO 3505") SAE AMS United States / Aerospace · 2 - [6440 Indicative bar](/materials/ams/6440 "SAE AMS 6440") - [6444 Indicative bar](/materials/ams/6444 "SAE AMS 6444") JIS Japan · 1 - [SUJ2 Indicative](/materials/jis/suj2 "JIS SUJ2") GB China · 4 - [9SiCr Indicative](/materials/gb/9sicr "GB 9SiCr") - [Cr2 Indicative](/materials/is/cr2 "GB Cr2") - [CrV Indicative](/materials/gb/crv "GB CrV") - [GCr15 Indicative](/materials/gb/gcr15 "GB GCr15") GOST Russia / CIS · 3 - [KH Indicative](/materials/gost/kh "GOST KH") - [ShCh15 Indicative](/materials/gost/shch15 "GOST ShCh15") - [ShKh15 Indicative](/materials/gost/shkh15 "GOST ShKh15") UNI Italy · 2 - [100Cr6 Indicative](/materials/din-en/100cr6 "UNI 100Cr6") - [102Cr6KU Indicative](/materials/uni/102cr6ku "UNI 102Cr6KU") SS Sweden · 1 - [2258 Indicative](/materials/ss/2258 "SS 2258") ČSN Czechia · 2 - [14100 Indicative](/materials/csn/14100 "ČSN 14100") - [14109 Indicative](/materials/csn/14109 "ČSN 14109") STN Slovakia · 1 - [14 100 Indicative](/materials/csn/14100 "STN 14 100") SRPS Serbia · 1 - **Č.4145 Indicative** PN Poland · 3 - [ŁH15 Indicative](/materials/pn/lh15 "PN ŁH15") - [LH15 Indicative](/materials/pn/lh15 "PN LH15") - [NC4 Indicative](/materials/pn/nc4 "PN NC4") MSZ Hungary · 1 - [K4 Indicative](/materials/msz/k4 "MSZ K4") BDS Bulgaria · 2 - [102Cr6 Indicative](/materials/din-en/102cr6 "BDS 102Cr6") - [Ch Indicative](/materials/bds/ch "BDS Ch") ÖNORM Austria · 1 - [BOHLERK200 Indicative](/materials/onorm/bohlerk200 "ÖNORM BOHLERK200") KS South Korea · 1 - [STB2 Indicative](/materials/ks/stb2 "KS STB2") 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 Cr C Ni Iron — the balance, never listed by a standard — 96.4 % Cr — 1.5 % C — 1 % Ni — 0.4 % Traces & impurities · 0.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.95–1.1 | | Si | 0.15–0.35 | | Mn | 0.2–0.4 | | P | 0.025 | | S | 0.025 | | Cr | 1.35–1.6 | | Mo | ≤ 0.1 | | Ni | 0.4 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel 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 | 0,95-1,10 | 0.950 | 1.100 | Range | | Si | 0,15-0,35 | 0.150 | 0.350 | Range | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,025 | 0.025 | 0.025 | Exact | | Cr | 1,35-1,60 | 1.350 | 1.600 | Range | | Mn | 0,20-0,40 | 0.200 | 0.400 | Range | | Ni | 0,4 | 0.400 | 0.400 | Exact | | Mo | ≤0,10 | — | 0.100 | 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 This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## Physical & mechanical properties Density 7,85 g/cm³ Exact Transformation point Ac1 724 °C Exact Transformation point Ac3 900 °C Exact · Ac3(Acm) Transformation point Ar3 713 °C Exact · Ar3(Arcm) Transformation point Ar1 700 °C Exact Flake sensitivity susceptible As published: predisposed Temper brittleness susceptible As published: predisposed 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 8 conditions · 31 values By thickness**Soft annealed** source `steelnumber` | Thickness mm | Rm N/mm² | A80% | |---|---|---| | 0.3 – 3 | 750 | 11 | By delivery state**no delivery state stated** source `steeljis` | Delivery state | HB | |---|---| | Hot rolled | 201 | By thickness**Quenched and tempered** source `steelnumber` | Thickness mm | Rm N/mm² | |---|---| | 0.3 – 3 | 1300 – 2100 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | HV | |---|---|---| | Soft annealed | 223 | 235 | By delivery state**Quenched and tempered** source `steelnumber` | Delivery state | HV | |---|---| | Quenched and tempered | 405 – 630 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Steel | 590 – 730 | 370 – 410 | 20 | 45 | 440 | By delivery state**no delivery state stated** source `splav` | Delivery state | HB | |---|---| | SHKH15 ( ШХ15 ) , GOST 801-78 | 179 – 207 | At temperature**no delivery state stated** source `splav` | Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Electrical resistivity nΩ·m | |---|---|---|---|---|---| | 20 | 7.812 | 211 | — | — | — | | 100 | 7.79 | — | 11.9 | — | 390 | | 200 | 7.75 | — | 15.1 | 40 | 470 | | 300 | 7.72 | — | 15.5 | — | 520 | | 400 | 7.68 | — | 15.6 | 37 | — | | 500 | 7.64 | — | 15.7 | 32 | — | 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 /T 1299-2025** Single operation Test specimen - Quenching 820–860 °C Cooling Oil Supply condition - Quenching Test specimen - Annealing Supply condition 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/azhlNWIxMzUxMDY_ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.2, a shared category, and a published range for Cr / Ni 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. [75CrMoNiW6-7 1.2762 Cr 1,40-1,60 · Ni 0,40-0,60 - ΔCr 0.02 - ΔNi 0.10 - 1 designations](/materials/din-en/75crmoniw6-7 "75CrMoNiW6-7") ## 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=65da1c27-9705-4d6d-b963-2bd34d29ad8f&designation=96a12b9c-fa26-485e-b5ed-8c82a99938d4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/srps/c-4145.pdf "Datasheet as PDF")