---
title: "17CrNi6-6 — 2 equivalent grades, compared"
description: "The designation 17CrNi6-6 is carried by 2 different grades. Compare them on the elements that actually differ, then open the one your print means."
canonical: https://steelequivalents.com/materials/din-en/17crni6-6
language: en
robots: index, follow
og_type: website
type: material-detail
language_alternates:
  en: https://steelequivalents.com/materials/din-en/17crni6-6.md
  cs: https://steelequivalents.com/cs/materiály/din-en/17crni6-6.md
  de: https://steelequivalents.com/de/werkstoffe/din-en/17crni6-6.md
  es: https://steelequivalents.com/es/materiales/din-en/17crni6-6.md
  fr: https://steelequivalents.com/fr/matériaux/din-en/17crni6-6.md
  hu: https://steelequivalents.com/hu/anyagok/din-en/17crni6-6.md
  it: https://steelequivalents.com/it/materiali/din-en/17crni6-6.md
  nl: https://steelequivalents.com/nl/materialen/din-en/17crni6-6.md
  pl: https://steelequivalents.com/pl/materiały/din-en/17crni6-6.md
  pt: https://steelequivalents.com/pt/materiais/din-en/17crni6-6.md
  ru: https://steelequivalents.com/ru/материалы/din-en/17crni6-6.md
  tr: https://steelequivalents.com/tr/malzemeler/din-en/17crni6-6.md
  zh: https://steelequivalents.com/zh/材料/din-en/17crni6-6.md
  ja: https://steelequivalents.com/ja/材料/din-en/17crni6-6.md
  ar: https://steelequivalents.com/ar/المواد/din-en/17crni6-6.md
  ko: https://steelequivalents.com/ko/재료/din-en/17crni6-6.md
  pt-br: https://steelequivalents.com/pt-br/materiais/din-en/17crni6-6.md
  hi: https://steelequivalents.com/hi/सामग्री/din-en/17crni6-6.md
content_hash: sha256:aee08661bd5e6284d0a00ec41ac8eccafcf7cdc71ba9c283c1d6d06e7110c7b6
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/17crni6-6
> Canonical URL: https://steelequivalents.com/materials/din-en/17crni6-6
> 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 · 2 grades

# 17CrNi6-6

The designation 17CrNi6-6 is carried by 2 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **2**
- [*Category* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades")

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")

## Which of the 2 do you want?

This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero.

| Grade | Material no. | Category | Designations | C% | Si% | P% | S% | Cr% | Mn% |
|---|---|---|---|---|---|---|---|---|---|
| [16NC6](/materials/afnor/16nc6 "16NC6") | [1.5918](/materials/material-no/1.5918 "1.5918") 1.5 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 5 | 0,14-0,20 | ≤0,40 | 0,025 | 0,035 | 1,40-1,70 | 0,50-0,90 |
| [4320](/materials/aisi-sae/4320 "4320") | [1.5919](/materials/material-no/1.5919 "1.5919") 1.5 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 29 | 0,12-0,18 | ≤0,25 | 0,02 | 0,015 | 1,35-1,65 | 0,40-0,70 |

## Not sure which one your print means?

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 "Inquiry")