--- title: "Gr.1330 — Quenched and tempered steels" description: "Gr.1330 in DIN / EN: material number 1.1170, also listed as 28Mn6. Category: Quenched and tempered steels. Designations recorded for this grade: 44." canonical: https://steelequivalents.com/materials/din-en/gr-1330 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/gr-1330.md cs: https://steelequivalents.com/cs/materiály/din-en/gr-1330.md de: https://steelequivalents.com/de/werkstoffe/din-en/gr-1330.md es: https://steelequivalents.com/es/materiales/din-en/gr-1330.md fr: https://steelequivalents.com/fr/matériaux/din-en/gr-1330.md hu: https://steelequivalents.com/hu/anyagok/din-en/gr-1330.md it: https://steelequivalents.com/it/materiali/din-en/gr-1330.md nl: https://steelequivalents.com/nl/materialen/din-en/gr-1330.md pl: https://steelequivalents.com/pl/materiały/din-en/gr-1330.md pt: https://steelequivalents.com/pt/materiais/din-en/gr-1330.md ru: https://steelequivalents.com/ru/материалы/din-en/gr-1330.md tr: https://steelequivalents.com/tr/malzemeler/din-en/gr-1330.md zh: https://steelequivalents.com/zh/材料/din-en/gr-1330.md ja: https://steelequivalents.com/ja/材料/din-en/gr-1330.md ar: https://steelequivalents.com/ar/المواد/din-en/gr-1330.md ko: https://steelequivalents.com/ko/재료/din-en/gr-1330.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/gr-1330.md hi: https://steelequivalents.com/hi/सामग्री/din-en/gr-1330.md content_hash: sha256:eebb4970b018bc7ff2ff3322804197be5717f84038585494fdabf7135e18fe05 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/din-en/gr-1330 > Canonical URL: https://steelequivalents.com/materials/din-en/gr-1330 > 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. DIN / EN · Europe · 44 designations # Gr.1330 Gr.1330 is a designation in DIN / EN for the material held under material number 1.1170, also listed as 28Mn6. It is a material in the category Quenched and tempered steels. We list 44 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, ČSN, STN, PN, MSZ, BDS and NBN. - [*Material no.* **1.1170**](/materials/material-no/1.1170 "Material no.: 1.1170") - [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades") - *Designations* **44** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=584b2f10-a988-4548-8246-63c79ac5a7e8&designation=1746d312-80da-444a-85fd-41424014b039 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/gr-1330.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 28Mn6 This grade’s own name](/materials/din-en/28mn6 "DIN / EN 28Mn6") - [UNS G13300 This grade’s own name · 5 grades on that route](/materials/uns/g13300 "UNS G13300") - [AISI / SAE 1330 This grade’s own name · 6 grades on that route](/materials/aisi-sae/1330 "AISI / SAE 1330") ## 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 44 designations · 17 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 - [1.1170 Indicative](/materials/material-no/1.1170 "DIN / EN 1.1170") - [28Mn6 This grade’s own name](/materials/din-en/28mn6 "DIN / EN 28Mn6") - **Gr.1330 Indicative** UNS United States · 3 - [G13300 This grade’s own name](/materials/uns/g13300 "UNS G13300") - [G15270 This grade’s own name](/materials/uns/g15270 "UNS G15270") - [H13300 This grade’s own name](/materials/uns/h13300 "UNS H13300") AISI / SAE United States · 8 - [1030 Indicative](/materials/aisi-sae/1030 "AISI / SAE 1030") - [1330 This grade’s own name](/materials/aisi-sae/1330 "AISI / SAE 1330") - [1330H This grade’s own name](/materials/aisi-sae/1330h "AISI / SAE 1330H") - [1527 This grade’s own name](/materials/aisi-sae/1527 "AISI / SAE 1527") - [G10300 Indicative](/materials/uns/g10300 "AISI / SAE G10300") - [G10330 Indicative](/materials/uns/g10330 "AISI / SAE G10330") - [G13300 Indicative](/materials/uns/g13300 "AISI / SAE G13300") - **Gr.1330 Indicative** BS United Kingdom · 7 - [120M36 Indicative](/materials/bs/120m36 "BS 120M36") - [14A Indicative](/materials/bs/14a "BS 14A") - [150H19 Indicative](/materials/bs/150h19 "BS 150H19") - [150M19 Indicative](/materials/bs/150m19 "BS 150M19") - [150M28 Indicative](/materials/bs/150m28 "BS 150M28") - [28Mn6 Indicative](/materials/din-en/28mn6 "BS 28Mn6") - [EN14A Indicative](/materials/bs/en14a "BS EN14A") AFNOR France · 3 - [20M5 Indicative](/materials/afnor/20m5 "AFNOR 20M5") - [28Mn6 Indicative](/materials/din-en/28mn6 "AFNOR 28Mn6") - [35Mn5 Indicative](/materials/afnor/35mn5 "AFNOR 35Mn5") UNE Spain · 1 - [28Mn6 Indicative](/materials/din-en/28mn6 "UNE 28Mn6") ISO International · 1 - [28Mn6 Indicative](/materials/din-en/28mn6 "ISO 28Mn6") JIS Japan · 2 - [SCMn1 Indicative](/materials/jis/scmn1 "JIS SCMn1") - [SCMn2 Indicative](/materials/jis/scmn2 "JIS SCMn2") GB China · 3 - [30Mn Indicative](/materials/gb/30mn "GB 30Mn") - [30Mn2 Indicative](/materials/gb/30mn2 "GB 30Mn2") - [ML30Mn Indicative](/materials/gb/ml30mn "GB ML30Mn") GOST Russia / CIS · 3 - [30G Indicative](/materials/bds/30g "GOST 30G") - [30G2 Indicative](/materials/bds/30g2 "GOST 30G2") - [30Г Indicative](/materials/bds/30g "GOST 30Г") UNI Italy · 2 - [28Mn6 Indicative](/materials/din-en/28mn6 "UNI 28Mn6") - [C28Mn Indicative](/materials/uni/c28mn "UNI C28Mn") ČSN Czechia · 1 - [13141 Indicative](/materials/csn/13141 "ČSN 13141") STN Slovakia · 1 - [13 141 Indicative](/materials/csn/13141 "STN 13 141") PN Poland · 1 - [30G2 Indicative](/materials/bds/30g2 "PN 30G2") MSZ Hungary · 2 - [28Mn6 Indicative](/materials/din-en/28mn6 "MSZ 28Mn6") - [Mn 1 Indicative](/materials/msz/mn-1 "MSZ Mn 1") BDS Bulgaria · 2 - [28Mn6 Indicative](/materials/din-en/28mn6 "BDS 28Mn6") - [30G Indicative](/materials/bds/30g "BDS 30G") NBN Belgium · 1 - [28Mn6 Indicative](/materials/din-en/28mn6 "NBN 28Mn6") 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 Mn Si Cr Iron — the balance, never listed by a standard — 96.9 % Mn — 1.5 % Si — 0.4 % Cr — 0.4 % Traces & impurities · 0.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.25–0.32 | | Si | ≤ 0.4 | | Mn | 1.3–1.65 — Unusual | | P | 0.035 | | S | 0.035 | | Cr | ≤ 0.4 | | 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 | 0,25-0,32 | 0.250 | 0.320 | Range | | Si | ≤0,40 | — | 0.400 | Max | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Cr | ≤0,40 | — | 0.400 | Max | | Mn | 1,30-1,65 | 1.300 | 1.650 | Range | | Ni | ≤0,40 | — | 0.400 | Max | | 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 computed from composition · °C Predicted Ae3 784 °C Predicted Ae1 712 °C Predicted Acm 532 °C Predicted Bs 537 °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 7,85 g/cm³ Exact Transformation point Ac1 723 °C Exact Transformation point Ac3 810 °C Exact · Ac3(Acm) Transformation point Ar3 785 °C Exact · Ar3(Arcm) Transformation point Ar1 680 °C Exact Weldability weldable with restrictions As published: limited weldability. Flake sensitivity not susceptible As published: not 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 7 conditions · 47 values By thickness**Normalized** source `steelnumber` | Thickness mm | Rm N/mm² | A% | |---|---|---| | ≤ 16 | 630 | 17 | | 16 – 100 | 600 | 18 | | 100 – 250 | 570 | 18 | | 250 – 500 | 540 | — | | 500 – 1000 | 540 | — | By delivery state**no delivery state stated** source `splav` | Delivery state | HB | |---|---| | (annealing) , GOST 4543-71 | 197 | | (normalize) , Sheet trick GOST 1577-93 | 217 | | (annealing) , Sheet trick GOST 1577-93 | 187 | By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | Z% | HB | |---|---|---|---|---|---| | Tempering after normalizing | 540 | 275 | 17 | 35 | 143 | | Tempering after quenching | 590 | 390 | 17 | 35 | 170 | By delivery state**Treated to improve shearability** source `steelnumber` | Delivery state | HB | |---|---| | Treated to improve shearability | 255 | By dimension**Quenching 860°C, water, Drawing 600°C, air** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | Ø 25 | 540 | 315 | 20 | 45 | 780 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 223 | 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) | Specific heat capacity J/(kg·K) | |---|---|---|---|---|---| | 20 | 7.81 | 204 | — | — | — | | 100 | — | — | 12.6 | 76 | 470 | | 200 | — | — | 13.9 | 65 | 483 | | 300 | — | — | 14.6 | 53 | 546 | | 400 | — | — | 15 | 44 | 601 | | 500 | — | — | 15.5 | 38 | 764 | | 600 | — | — | 15.6 | — | — | | 700 | — | — | 14.8 | — | — | 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 - Annealing and Tempering and Normalizing Supply condition - Normalizing and Quenching and Tempering Test specimen size d=25 - Annealing Steel product 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/azhlNWIxMzIw "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.1, 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. [38Mn6 1.1127 Mn 1,40-1,65 · Si 0,15-0,35 - ΔMn 0.05 - ΔSi 0.05 - 10 designations](/materials/din-en/38mn6 "38Mn6")[G28Mn6 1.1165 Mn 1,20-1,80 · Si ≤0,60 - ΔMn 0.02 - ΔSi 0.10 - 56 designations](/materials/din-en/g28mn6 "G28Mn6")[26Mn5 1.1161 Mn 1,20-1,50 · Si ≤0,40 - ΔMn 0.13 - ΔSi 0.00 - 7 designations](/materials/din-en/26mn5 "26Mn5")[1.1167 1.1167 Mn 1,20-1,50 · Si ≤0,40 - ΔMn 0.13 - ΔSi 0.00 - 82 designations](/materials/material-no/1.1167 "1.1167")[30Mn5 1.1173 Mn 1,20-1,50 · Si 0,15-0,40 - ΔMn 0.13 - ΔSi 0.08 - 10 designations](/materials/din-en/30mn5 "30Mn5")[20Mn5 1.1133 Mn 1,00-1,50 · Si ≤0,40 - ΔMn 0.23 - ΔSi 0.00 - 71 designations](/materials/din-en/20mn5 "20Mn5") ## 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=584b2f10-a988-4548-8246-63c79ac5a7e8&designation=1746d312-80da-444a-85fd-41424014b039 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/gr-1330.pdf "Datasheet as PDF")