---
title: "SCr420H — 3 equivalent grades, compared"
description: "The designation SCr420H 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/jis/scr420h
language: en
robots: index, follow
og_type: website
type: material-detail
language_alternates:
  en: https://steelequivalents.com/materials/jis/scr420h.md
  cs: https://steelequivalents.com/cs/materiály/jis/scr420h.md
  de: https://steelequivalents.com/de/werkstoffe/jis/scr420h.md
  es: https://steelequivalents.com/es/materiales/jis/scr420h.md
  fr: https://steelequivalents.com/fr/matériaux/jis/scr420h.md
  hu: https://steelequivalents.com/hu/anyagok/jis/scr420h.md
  it: https://steelequivalents.com/it/materiali/jis/scr420h.md
  nl: https://steelequivalents.com/nl/materialen/jis/scr420h.md
  pl: https://steelequivalents.com/pl/materiały/jis/scr420h.md
  pt: https://steelequivalents.com/pt/materiais/jis/scr420h.md
  ru: https://steelequivalents.com/ru/материалы/jis/scr420h.md
  tr: https://steelequivalents.com/tr/malzemeler/jis/scr420h.md
  zh: https://steelequivalents.com/zh/材料/jis/scr420h.md
  ja: https://steelequivalents.com/ja/材料/jis/scr420h.md
  ar: https://steelequivalents.com/ar/المواد/jis/scr420h.md
  ko: https://steelequivalents.com/ko/재료/jis/scr420h.md
  pt-br: https://steelequivalents.com/pt-br/materiais/jis/scr420h.md
  hi: https://steelequivalents.com/hi/सामग्री/jis/scr420h.md
content_hash: sha256:bfab2f99879df572c4d59cb6d26898183ef25ad2d354b9678fb3a13aec027e7b
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/jis/scr420h
> Canonical URL: https://steelequivalents.com/materials/jis/scr420h
> 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.

JIS · Japan · 3 grades

# SCr420H

The designation SCr420H 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* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades")
- [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 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 | Cr% | C% | Al% | S% | Mn% |
|---|---|---|---|---|---|---|---|---|
| [19 Mn Cr 5](/materials/din-en/19mncr5 "19 Mn Cr 5") | [1.3523](/materials/material-no/1.3523 "1.3523") 1.3 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels"), [Others](/categories/others "Others") | 16 | 1,10-1,30 | 0,17-0,22 | ≤0,050 | 0,015 | 1,10-1,40 |
| [20Cr4](/materials/din-en/20cr4 "20Cr4") | [1.7027](/materials/material-no/1.7027 "1.7027") 1.7 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 25 | 0,90-1,20 | 0,17-0,23 | ≤0,05 | 0,015 | 0,60-0,90 |
| [20MnCr5](/materials/din-en/20mncr5 "20MnCr5") | [1.7147](/materials/material-no/1.7147 "1.7147") 1.7 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 45 | 1,00-1,30 | 0,17-0,22 | — | 0,035 | 1,10-1,40 |

## 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")
