---
title: "40H — 3 equivalent grades, compared"
description: "The designation 40H is carried by 3 different grades. Compare them on the elements that actually differ, then open the one your print means."
canonical: https://steelequivalents.com/materials/pn/40h
language: en
robots: index, follow
og_type: website
type: material-detail
language_alternates:
  en: https://steelequivalents.com/materials/pn/40h.md
  cs: https://steelequivalents.com/cs/materiály/pn/40h.md
  de: https://steelequivalents.com/de/werkstoffe/pn/40h.md
  es: https://steelequivalents.com/es/materiales/pn/40h.md
  fr: https://steelequivalents.com/fr/matériaux/pn/40h.md
  hu: https://steelequivalents.com/hu/anyagok/pn/40h.md
  it: https://steelequivalents.com/it/materiali/pn/40h.md
  nl: https://steelequivalents.com/nl/materialen/pn/40h.md
  pl: https://steelequivalents.com/pl/materiały/pn/40h.md
  pt: https://steelequivalents.com/pt/materiais/pn/40h.md
  ru: https://steelequivalents.com/ru/материалы/pn/40h.md
  tr: https://steelequivalents.com/tr/malzemeler/pn/40h.md
  zh: https://steelequivalents.com/zh/材料/pn/40h.md
  ja: https://steelequivalents.com/ja/材料/pn/40h.md
  ar: https://steelequivalents.com/ar/المواد/pn/40h.md
  ko: https://steelequivalents.com/ko/재료/pn/40h.md
  pt-br: https://steelequivalents.com/pt-br/materiais/pn/40h.md
  hi: https://steelequivalents.com/hi/सामग्री/pn/40h.md
content_hash: sha256:dcf697c12202debda20fb8337664837663af9ab68e2c0428d42c74125966b8cd
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/pn/40h
> Canonical URL: https://steelequivalents.com/materials/pn/40h
> 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.

PN · Poland · 3 grades

# 40H

The designation 40H is carried by 3 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **3**
- [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades")
- [*Category* **Steels for surface hardening · 13 grades**](/categories/steels-for-surface-hardening "Category: Steels for surface hardening · 13 grades")

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

## Which of the 3 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% |
|---|---|---|---|---|---|---|
| [37Cr4](/materials/din-en/37cr4 "37Cr4") | [1.7034](/materials/material-no/1.7034 "1.7034") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 104 | 0,34-0,41 | ≤0,40 | 0,035 |
| [1.7035](/materials/material-no/1.7035 "1.7035") | [1.7035](/materials/material-no/1.7035 "1.7035") 1.7 | [Quenched and tempered steels](/categories/quenched-and-tempered-steels "Quenched and tempered steels") | 67 | 0,38-0,45 | ≤0,40 | 0,035 |
| [38Cr4](/materials/din-en/38cr4 "38Cr4") | [1.7043](/materials/material-no/1.7043 "1.7043") 1.7 | [Steels for surface hardening](/categories/steels-for-surface-hardening "Steels for surface hardening") | 7 | 0,34-0,40 | 0,15-0,40 | 0,025 |

## 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")
