--- title: "1.0615 — C70D, 8 equivalent designations" description: "1.0615 is the material number of the grade also listed as C70D. It is a material in the category Others. Designations recorded for this grade: 8." canonical: https://steelequivalents.com/materials/material-no/1.0615 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.0615.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.0615.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.0615.md es: https://steelequivalents.com/es/materiales/número-de-material/1.0615.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.0615.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.0615.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.0615.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.0615.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.0615.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.0615.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.0615.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.0615.md zh: https://steelequivalents.com/zh/材料/材料编号/1.0615.md ja: https://steelequivalents.com/ja/材料/材料番号/1.0615.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.0615.md ko: https://steelequivalents.com/ko/재료/재료번호/1.0615.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.0615.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.0615.md content_hash: sha256:359cf3c16b73e81303f6a97c9d894e6b5a0e5e0c6070f8d62d49b88f2fdcfdfd 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/material-no/1.0615 > Canonical URL: https://steelequivalents.com/materials/material-no/1.0615 > 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. Material number · Europe · 8 designations # 1.0615 1.0615 is the material number of the grade also listed as C70D. It is a material in the category Others. We list 8 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, GB, GOST, AS / NZS and BDS. - ***Material no.* **1.0615**** - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **8** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=c7cea2ca-766f-4074-a21b-b91502984495 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0615.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN C70D This grade’s own name](/materials/din-en/c70d "DIN / EN C70D") - [UNS G10700 This grade’s own name · 7 grades on that route](/materials/uns/g10700 "UNS G10700") - [AISI / SAE 1070 This grade’s own name · 7 grades on that route](/materials/aisi-sae/1070 "AISI / SAE 1070") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 8 designations · 8 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 · 1 - [C70D This grade’s own name](/materials/din-en/c70d "DIN / EN C70D") UNS United States · 1 - [G10700 This grade’s own name](/materials/uns/g10700 "UNS G10700") AISI / SAE United States · 1 - [1070 This grade’s own name](/materials/aisi-sae/1070 "AISI / SAE 1070") BS United Kingdom · 1 - [080A72 Indicative](/materials/bs/080a72 "BS 080A72") GB China · 1 - [70 Indicative](/materials/gb/70 "GB 70") GOST Russia / CIS · 1 - [70 Indicative](/materials/gb/70 "GOST 70") AS / NZS Australia / New Zealand · 1 - [1070 Indicative](/materials/aisi-sae/1070 "AS / NZS 1070") BDS Bulgaria · 1 - [70 Indicative](/materials/gb/70 "BDS 70") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 10 elements on file · weight % What this alloy is Fe C Mn Cu Iron — the balance, never listed by a standard — 97.7 % C — 0.7 % Mn — 0.7 % Cu — 0.3 % Traces & impurities · 0.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.68–0.73 | | Si | 0.1–0.3 | | Mn | 0.5–0.8 | | P | 0.03 | | S | 0.03 | | Cr | ≤ 0.15 | | Mo | ≤ 0.05 | | Ni | ≤ 0.2 | | Cu | ≤ 0.25 | | Al | ≤ 0.01 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Copper Aluminium 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 | 0,68-0,73 | 0.680 | 0.730 | Range | | Al | ≤0,01 | — | 0.010 | Max | | Si | 0,10-0,30 | 0.100 | 0.300 | Range | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | ≤0,15 | — | 0.150 | Max | | Mn | 0,50-0,80 | 0.500 | 0.800 | Range | | Ni | ≤0,20 | — | 0.200 | Max | | Cu | ≤0,25 | — | 0.250 | Max | | Mo | ≤0,05 | — | 0.050 | 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 730 °C Exact Transformation point Ac3 743 °C Exact · Ac3(Acm) Transformation point Ar3 727 °C Exact · Ar3(Arcm) Transformation point Ar1 693 °C Exact Weldability not suitable for welding As published: is not used. Flake sensitivity slightly susceptible As published: weakly 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 3 conditions · 22 values By delivery state**no delivery state stated** source `splav` | Delivery state | Rm N/mm² | A5% | HB | |---|---|---|---| | Band cold-worked , GOST 2284-79 | 740 – 1130 | — | — | | Band annealed , GOST 2284-79 | 440 – 740 | 10 | — | | (without heat treatment) , GOST 14959 | — | — | 269 | | (annealing) , Sheet trick GOST 1577-93 | — | — | 229 | By dimension**Quenching 830°C, oil, Drawing 470°C** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | to Ø 80 | 1030 | 834 | 9 | 30 | 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 | 206 | — | — | — | | 100 | — | — | 11.5 | 68 | 483 | | 200 | — | — | 12.3 | 52 | 487 | | 300 | — | — | 13 | 37 | — | | 400 | — | — | 13.8 | 29 | 521 | 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. ## 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. [C38D 1.0516 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/c38d "C38D")[C48D 1.0517 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/c48d "C48D")[C56 D 1.0518 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/c56-d "C56 D")[C32D 1.0530 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 10 designations](/materials/din-en/c32d "C32D")[C52D 1.0588 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/c52d "C52D")[C62D 1.0611 Mn 0,50-0,80 · Si 0,10-0,30 - ΔMn 0.00 - ΔSi 0.00 - 3 designations](/materials/din-en/c62d "C62D") ## 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=c7cea2ca-766f-4074-a21b-b91502984495 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.0615.pdf "Datasheet as PDF")