--- title: "38Si6 — Spring steels" description: "38Si6: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/38si6 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/38si6.md cs: https://steelequivalents.com/cs/materiály/din-en/38si6.md de: https://steelequivalents.com/de/werkstoffe/din-en/38si6.md es: https://steelequivalents.com/es/materiales/din-en/38si6.md fr: https://steelequivalents.com/fr/matériaux/din-en/38si6.md hu: https://steelequivalents.com/hu/anyagok/din-en/38si6.md it: https://steelequivalents.com/it/materiali/din-en/38si6.md nl: https://steelequivalents.com/nl/materialen/din-en/38si6.md pl: https://steelequivalents.com/pl/materiały/din-en/38si6.md pt: https://steelequivalents.com/pt/materiais/din-en/38si6.md ru: https://steelequivalents.com/ru/материалы/din-en/38si6.md tr: https://steelequivalents.com/tr/malzemeler/din-en/38si6.md zh: https://steelequivalents.com/zh/材料/din-en/38si6.md ja: https://steelequivalents.com/ja/材料/din-en/38si6.md ar: https://steelequivalents.com/ar/المواد/din-en/38si6.md ko: https://steelequivalents.com/ko/재료/din-en/38si6.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/38si6.md hi: https://steelequivalents.com/hi/सामग्री/din-en/38si6.md content_hash: sha256:328a6dd106baf0e25cc2c5c529b3ee53eebd7835a36cbb8606ec3fd65cfcb37a 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/38si6 > Canonical URL: https://steelequivalents.com/materials/din-en/38si6 > 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 · 1 designation # 38Si6 38Si6 is a material in the category [Spring steels](/categories/spring-steels "Spring steels"), held under material number 1.5022. Its recorded composition includes C 0.35–0.42%, Si 1.4–1.6%, P 0.05%, S 0.05% and Mn 0.5–0.8%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.5022**](/materials/material-no/1.5022 "Material no.: 1.5022") - [*Category* **Spring steels · 52 grades**](/categories/spring-steels "Category: Spring steels · 52 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=85549ea3-f49d-46f7-b724-756c290c7963&designation=952e6bd6-1139-457c-8af4-83aa3e8f04d4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/38si6.pdf "Datasheet as PDF") ## About Spring steels Spring steels are alloy steels designed to store and release elastic energy repeatedly without permanent deformation. They are characterised by a combination of strength, hardness and resilience, making them suitable for springs, clips, washers and other components subjected to repeated flexing or shock. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Chemical composition 6 elements on file · weight % What this alloy is Fe Si Mn C Iron — the balance, never listed by a standard — 97.4 % Si — 1.5 % Mn — 0.7 % C — 0.4 % Traces & impurities · 0.1 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.35–0.42 | | Si | 1.4–1.6 | | Mn | 0.5–0.8 | | P | 0.05 — Unusual | | S | 0.05 | | N | 0.007 | Carbon Silicon Manganese Phosphorus Sulfur Nitrogen 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 | 0,35-0,42 | 0.350 | 0.420 | Range | | N | 0,007 | 0.007 | 0.007 | Exact | | Si | 1,40-1,60 | 1.400 | 1.600 | Range | | P | 0,05 | 0.050 | 0.050 | Exact | | S | 0,05 | 0.050 | 0.050 | Exact | | Mn | 0,50-0,80 | 0.500 | 0.800 | 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.5, a shared category, and a published range for Si / Mn 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. [38Si7 1.5023 Si 1,50-1,80 · Mn 0,50-0,80 - ΔSi 0.15 - ΔMn 0.00 - 7 designations](/materials/din-en/38si7 "38Si7")[46Si7 1.5024 Si 1,50-1,80 · Mn 0,50-0,80 - ΔSi 0.15 - ΔMn 0.00 - 11 designations](/materials/din-en/46si7 "46Si7")[51Si7 1.5025 Si 1,50-1,80 · Mn 0,50-0,80 - ΔSi 0.15 - ΔMn 0.00 - 9 designations](/materials/din-en/51si7 "51Si7")[71Si7 1.5029 Si 1,50-1,80 · Mn 0,60-0,80 - ΔSi 0.15 - ΔMn 0.05 - 1 designations](/materials/din-en/71si7 "71Si7")[60Si7 1.5027 Si 1,50-1,80 · Mn 0,70-1,00 - ΔSi 0.15 - ΔMn 0.20 - 18 designations](/materials/din-en/60si7 "60Si7")[65Si7 1.5028 Si 1,50-1,80 · Mn 0,70-1,00 - ΔSi 0.15 - ΔMn 0.20 - 17 designations](/materials/din-en/65si7 "65Si7") ## 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=85549ea3-f49d-46f7-b724-756c290c7963&designation=952e6bd6-1139-457c-8af4-83aa3e8f04d4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/38si6.pdf "Datasheet as PDF")