--- title: "34MoCrNi15q — Quenched and tempered steels" description: "34MoCrNi15q in STAS: material number 1.6582, also listed as 34CrNiMo6. It is a material in the category Quenched and tempered steels." canonical: https://steelequivalents.com/materials/stas/34mocrni15q language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/stas/34mocrni15q.md cs: https://steelequivalents.com/cs/materiály/stas/34mocrni15q.md de: https://steelequivalents.com/de/werkstoffe/stas/34mocrni15q.md es: https://steelequivalents.com/es/materiales/stas/34mocrni15q.md fr: https://steelequivalents.com/fr/matériaux/stas/34mocrni15q.md hu: https://steelequivalents.com/hu/anyagok/stas/34mocrni15q.md it: https://steelequivalents.com/it/materiali/stas/34mocrni15q.md nl: https://steelequivalents.com/nl/materialen/stas/34mocrni15q.md pl: https://steelequivalents.com/pl/materiały/stas/34mocrni15q.md pt: https://steelequivalents.com/pt/materiais/stas/34mocrni15q.md ru: https://steelequivalents.com/ru/материалы/stas/34mocrni15q.md tr: https://steelequivalents.com/tr/malzemeler/stas/34mocrni15q.md zh: https://steelequivalents.com/zh/材料/stas/34mocrni15q.md ja: https://steelequivalents.com/ja/材料/stas/34mocrni15q.md ar: https://steelequivalents.com/ar/المواد/stas/34mocrni15q.md ko: https://steelequivalents.com/ko/재료/stas/34mocrni15q.md pt-br: https://steelequivalents.com/pt-br/materiais/stas/34mocrni15q.md hi: https://steelequivalents.com/hi/सामग्री/stas/34mocrni15q.md content_hash: sha256:1442dd45a1ad99794e1ab432f07be355e4c80dd8a7791f6ebdca3b9e6abad965 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/stas/34mocrni15q > Canonical URL: https://steelequivalents.com/materials/stas/34mocrni15q > 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. STAS · Romania · 84 designations # 34MoCrNi15q 34MoCrNi15q is a designation in STAS for the material held under material number 1.6582, also listed as 34CrNiMo6. It is a material in the category Quenched and tempered steels. We list 84 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, PN, SRPS, HRN, MSZ, STAS, AS / NZS, BDS, ÖNORM, NBN and KS. - [*Material no.* **1.6582**](/materials/material-no/1.6582 "Material no.: 1.6582") - [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades") - *Designations* **84** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=30572e23-edfd-4788-a794-14b7250a45b7&designation=a13829fb-fa6b-4b1e-912a-4904f50dd648 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/stas/34mocrni15q.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 34CrNiMo6 This grade’s own name](/materials/din-en/34crnimo6 "DIN / EN 34CrNiMo6") - [UNS F1270 This grade’s own name](/materials/uns/f1270 "UNS F1270") - [SS SIS 14 2541 This grade’s own name](/materials/ss/sis-14-2541 "SS SIS 14 2541") ## About Quenched and tempered steels Quenched and tempered steels are heat-treated steels designed to combine high strength with useful toughness and ductility. They are used for heavily loaded components such as shafts, gears, fasteners and structural machine parts where resistance to mechanical stress is required. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 84 designations · 26 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 · 4 - [1.6582 Indicative](/materials/material-no/1.6582 "DIN / EN 1.6582") - [34CrNiMo6 This grade’s own name](/materials/din-en/34crnimo6 "DIN / EN 34CrNiMo6") - [G34CrNiMo6 This grade’s own name Withdrawn](/materials/din-en/g34crnimo6 "DIN / EN G34CrNiMo6") - [GS-34CrNiMo6V Indicative](/materials/din-en/gs-34crnimo6v "DIN / EN GS-34CrNiMo6V") UNS United States · 2 - [F1270 This grade’s own name](/materials/uns/f1270 "UNS F1270") - [G43400 Indicative](/materials/uns/g43400 "UNS G43400") AISI / SAE United States · 7 - [4330 Indicative](/materials/aisi-sae/4330 "AISI / SAE 4330") - [4337 Indicative](/materials/aisi-sae/4337 "AISI / SAE 4337") - [4340 Indicative](/materials/aisi-sae/4340 "AISI / SAE 4340") - [G43376 Indicative](/materials/uns/g43376 "AISI / SAE G43376") - [G43400 Indicative](/materials/uns/g43400 "AISI / SAE G43400") - [G43499 Indicative](/materials/aisi-sae/g43499 "AISI / SAE G43499") - [J23015 Indicative](/materials/aisi-sae/j23015 "AISI / SAE J23015") ASTM United States · 1 - [A829 Indicative](/materials/astm/a829 "ASTM A829") BS United Kingdom · 4 - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "BS 34CrNiMo6") - [816M40 Indicative](/materials/bs/816m40 "BS 816M40") - [817M40 Indicative](/materials/bs/817m40 "BS 817M40") - [EN 24 Indicative](/materials/bs/en-24 "BS EN 24") AFNOR France · 4 - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "AFNOR 34CrNiMo6") - [34CrNiMo8 Indicative](/materials/afnor/34crnimo8 "AFNOR 34CrNiMo8") - [35CND6 Indicative](/materials/afnor/35cnd6 "AFNOR 35CND6") - [35NCD6 Indicative](/materials/afnor/35ncd6 "AFNOR 35NCD6") UNE Spain · 4 - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "UNE 34CrNiMo6") - [40NiCrMo7 Indicative](/materials/uni/40nicrmo7 "UNE 40NiCrMo7") - [F.1272 Indicative](/materials/une/f-1272 "UNE F.1272") - [F.1272-40NiCrMo7 Indicative](/materials/une/f-1272-40nicrmo7 "UNE F.1272-40NiCrMo7") ISO International · 1 - [36CrNiMo6 Indicative](/materials/iso/36crnimo6 "ISO 36CrNiMo6") SAE AMS United States / Aerospace · 5 - [6359 Indicative](/materials/ams/6359 "SAE AMS 6359") - [6409 Indicative](/materials/ams/6409 "SAE AMS 6409") - [6414 Indicative](/materials/ams/6414 "SAE AMS 6414") - [6415 Indicative](/materials/ams/6415 "SAE AMS 6415") - [6454 Indicative](/materials/ams/6454 "SAE AMS 6454") JIS Japan · 3 - [SNCM431 Indicative](/materials/jis/sncm431 "JIS SNCM431") - [SNCM439 Indicative](/materials/ks/sncm439 "JIS SNCM439") - [SNCM447 Indicative](/materials/jis/sncm447 "JIS SNCM447") GB China · 5 - [34Cr2Ni2Mo Indicative](/materials/gb/34cr2ni2mo "GB 34Cr2Ni2Mo") - [34CrNi3Mo Indicative](/materials/gb/34crni3mo "GB 34CrNi3Mo") - [34CrNiMo Indicative](/materials/gb/34crnimo "GB 34CrNiMo") - [40CrNiMoA Indicative](/materials/gb/40crnimoa "GB 40CrNiMoA") - [ZG34CrNiMo Indicative](/materials/gb/zg34crnimo "GB ZG34CrNiMo") GOST Russia / CIS · 14 - [30KHNML Indicative](/materials/gost/30khnml "GOST 30KHNML") - [30ХНМЛ Indicative](/materials/gost/30khnml "GOST 30ХНМЛ") - [34ChN1M Indicative](/materials/gost/34chn1m "GOST 34ChN1M") - [34ХН1М Indicative](/materials/gost/34khn1m "GOST 34ХН1М") - [36KH2N2MFA Indicative](/materials/gost/36kh2n2mfa "GOST 36KH2N2MFA") - [36KH2N2MFА Indicative](/materials/gost/36kh2n2mfa "GOST 36KH2N2MFА") - [36Х2Н2МФА Indicative](/materials/gost/36kh2n2mfa "GOST 36Х2Н2МФА") - [36ХН1МФА Indicative](/materials/gost/36khn1mfa "GOST 36ХН1МФА") - [38Ch2N2MA Indicative](/materials/gost/38ch2n2ma "GOST 38Ch2N2MA") - [38KH2N2MA Indicative](/materials/gost/38kh2n2ma "GOST 38KH2N2MA") - [38KH2N2MА Indicative](/materials/gost/38kh2n2ma "GOST 38KH2N2MА") - [38Х2Н2МА Indicative](/materials/gost/38kh2n2ma "GOST 38Х2Н2МА") - [38ХНМА Indicative](/materials/gost/38khnma "GOST 38ХНМА") - [40KHN2MA Indicative](/materials/gost/40khn2ma "GOST 40KHN2MA") UNI Italy · 5 - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "UNI 34CrNiMo6") - [35CrNiMo6 Indicative](/materials/din-en/35crnimo6 "UNI 35CrNiMo6") - [35NiCrMo6 Indicative](/materials/uni/35nicrmo6 "UNI 35NiCrMo6") - [35NiCrMo6KB Indicative](/materials/uni/35nicrmo6kb "UNI 35NiCrMo6KB") - [KB Indicative](/materials/uni/kb "UNI KB") SS Sweden · 2 - [2541 Indicative](/materials/ss/2541 "SS 2541") - [SIS 14 2541 This grade’s own name](/materials/ss/sis-14-2541 "SS SIS 14 2541") ČSN Czechia · 4 - [16 444 Indicative](/materials/csn/16-444 "ČSN 16 444") - [16342 Indicative](/materials/csn/16342 "ČSN 16342") - [16343 Indicative](/materials/csn/16343 "ČSN 16343") - [16440 Indicative](/materials/csn/16440 "ČSN 16440") STN Slovakia · 1 - [16 343 Indicative](/materials/csn/16343 "STN 16 343") PN Poland · 2 - [34HNM Indicative](/materials/pn/34hnm "PN 34HNM") - [34HNMA Indicative](/materials/pn/34hnma "PN 34HNMA") SRPS Serbia · 1 - [Č.5431 Indicative](/materials/srps/c-5431 "SRPS Č.5431") HRN Croatia · 1 - [Č.5431 Indicative](/materials/srps/c-5431 "HRN Č.5431") MSZ Hungary · 3 - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "MSZ 34CrNiMo6") - [Ao30CrNiMo6-6 Indicative](/materials/msz/ao30crnimo6-6 "MSZ Ao30CrNiMo6-6") - [NCMo 5 Indicative](/materials/msz/ncmo-5 "MSZ NCMo 5") STAS Romania · 5 - [34MoCrNi15 Indicative](/materials/stas/34mocrni15 "STAS 34MoCrNi15") - **34MoCrNi15q Indicative** - [34MoCrNi16 Indicative](/materials/stas/34mocrni16 "STAS 34MoCrNi16") - [34MoCrNi16q Indicative](/materials/stas/34mocrni16q "STAS 34MoCrNi16q") - [T30MoCrNi14 Indicative](/materials/stas/t30mocrni14 "STAS T30MoCrNi14") AS / NZS Australia / New Zealand · 1 - [4340 Indicative](/materials/aisi-sae/4340 "AS / NZS 4340") BDS Bulgaria · 2 - [30ChNML Indicative](/materials/bds/30chnml "BDS 30ChNML") - [34CrNiMo6 Indicative](/materials/din-en/34crnimo6 "BDS 34CrNiMo6") ÖNORM Austria · 1 - [BOHLERV155 Indicative](/materials/onorm/bohlerv155 "ÖNORM BOHLERV155") NBN Belgium · 1 - [35CrNiMo6 Indicative](/materials/din-en/35crnimo6 "NBN 35CrNiMo6") KS South Korea · 1 - [SNCM447 Indicative](/materials/jis/sncm447 "KS SNCM447") 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 Ni Mn Iron — the balance, never listed by a standard — 95.3 % Cr — 1.5 % Ni — 1.5 % Mn — 0.7 % Traces & impurities · 1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.3–0.38 | | Si | ≤ 0.4 | | Mn | 0.5–0.8 | | P | 0.025 | | S | 0.035 | | Cr | 1.3–1.7 | | Mo | 0.15–0.3 | | Ni | 1.3–1.7 | 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 | 0,30-0,38 | 0.300 | 0.380 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Cr | 1,30-1,70 | 1.300 | 1.700 | Range | | Mn | 0,50-0,80 | 0.500 | 0.800 | Range | | Ni | 1,30-1,70 | 1.300 | 1.700 | Range | | Mo | 0,15-0,30 | 0.150 | 0.300 | 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 computed from composition · °C Predicted Ae3 760 °C Predicted Ae1 736 °C Predicted Acm 606 °C Predicted Bs 491 °C These four temperatures are a CALCULATION from this grade's own composition, using the published Li, Niebuhr, Meekisho & Atteridge (1998) model — never a measurement, and computed from the UPPER BOUND of each element's specified range, not a mid-range figure. Where this grade also has a measured transformation point (Ac1, Ac3, Ar1, Ar3) on file, it is shown separately, in Physical & mechanical properties, and is never replaced by the predicted figures here — Ae (predicted, equilibrium) and Ac/Ar (measured, on heating or cooling) are different physical quantities and can differ by tens of degrees; a mismatch between the two is not an error in either. ## Physical & mechanical properties Density 7,73 g/cm³ Exact Transformation point Ac1 753 °C Exact Transformation point Ac3 790 °C Exact · Ac3(Acm) Transformation point Ar3 490 °C Exact · Ar3(Arcm) Transformation point Ar1 370 °C Exact Weldability not suitable for welding As published: is not used. Flake sensitivity susceptible As published: predisposed Temper brittleness not susceptible As published: not 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 5 conditions · 54 values By thickness**Quenched and tempered · round products** source `steelnumber` | Thickness mm | A% · Lo = 5,65 √So | |---|---| | ≤ 16 | 9 | | 16 – 40 | 10 | | 40 – 100 | 11 | | 100 – 160 | 12 | | 160 – 250 | 13 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 248 – 255 | By dimension**Quenching and drawing** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Ø 25 | 1080 | 930 | 12 | 50 | 780 | By delivery state**no delivery state stated** source `splav` | Delivery state | HB | |---|---| | 38KH2N2MА ( 38Х2Н2МА ) (annealing) , GOST 4543-71 | 269 | At temperature**no delivery state stated** source `splav` | Temperature °C | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Specific heat capacity J/(kg·K) | Electrical resistivity nΩ·m | |---|---|---|---|---|---| | 20 | 213 | — | 38 | — | 322 | | 100 | 206 | 11.9 | 37 | 490 | 398 | | 200 | 194 | 12.5 | 35 | 502 | 482 | | 300 | 180 | 13.1 | 35 | 523 | 592 | | 400 | 174 | 13.3 | 33 | 532 | 740 | | 500 | 164 | 13.8 | 32 | 565 | 910 | | 600 | 157 | 14.1 | 30 | 590 | 1090 | | 700 | 141 | 14.6 | 28 | 615 | 1300 | | 800 | 129 | 11.8 | 28 | 670 | — | 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 Supply condition - Quenching and Tempering d=25 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/azhlNWIxMTkzMDg_ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.6, 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. [40NiCrMo6 1.6565 Cr 0,90-1,40 · Ni 1,40-1,70 - ΔCr 0.35 - ΔNi 0.05 - 56 designations](/materials/din-en/40nicrmo6 "40NiCrMo6")[28NiCrMo4 1.6513 Cr 1,00-1,30 · Ni 1,00-1,30 - ΔCr 0.35 - ΔNi 0.35 - 1 designations](/materials/din-en/28nicrmo4 "28NiCrMo4") ## 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=30572e23-edfd-4788-a794-14b7250a45b7&designation=a13829fb-fa6b-4b1e-912a-4904f50dd648 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/stas/34mocrni15q.pdf "Datasheet as PDF")