---
title: "A593 — 5 equivalent grades, compared"
description: "The designation A593 is carried by 5 different grades. Compare them on the elements that actually differ, then open the one your print means."
canonical: https://steelequivalents.com/materials/astm/a593
language: en
robots: index, follow
og_type: website
type: material-detail
language_alternates:
  en: https://steelequivalents.com/materials/astm/a593.md
  cs: https://steelequivalents.com/cs/materiály/astm/a593.md
  de: https://steelequivalents.com/de/werkstoffe/astm/a593.md
  es: https://steelequivalents.com/es/materiales/astm/a593.md
  fr: https://steelequivalents.com/fr/matériaux/astm/a593.md
  hu: https://steelequivalents.com/hu/anyagok/astm/a593.md
  it: https://steelequivalents.com/it/materiali/astm/a593.md
  nl: https://steelequivalents.com/nl/materialen/astm/a593.md
  pl: https://steelequivalents.com/pl/materiały/astm/a593.md
  pt: https://steelequivalents.com/pt/materiais/astm/a593.md
  ru: https://steelequivalents.com/ru/материалы/astm/a593.md
  tr: https://steelequivalents.com/tr/malzemeler/astm/a593.md
  zh: https://steelequivalents.com/zh/材料/astm/a593.md
  ja: https://steelequivalents.com/ja/材料/astm/a593.md
  ar: https://steelequivalents.com/ar/المواد/astm/a593.md
  ko: https://steelequivalents.com/ko/재료/astm/a593.md
  pt-br: https://steelequivalents.com/pt-br/materiais/astm/a593.md
  hi: https://steelequivalents.com/hi/सामग्री/astm/a593.md
content_hash: sha256:6f0106fb6c8a8aa9151755007dbde4da8750fbd844758fc84f4e2b3a5710626d
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/astm/a593
> Canonical URL: https://steelequivalents.com/materials/astm/a593
> 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.

ASTM · United States · 5 grades

# A593

The designation A593 is carried by 5 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **5**
- [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades")
- [*Category* **Special steels for aviation and aerospace · 39 grades**](/categories/special-steels-for-aviation-and-aerospace "Category: Special steels for aviation and aerospace · 39 grades")

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

## Which of the 5 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% | S% | Ni% | P% | Mn% |
|---|---|---|---|---|---|---|---|---|---|
| [1.4005](/materials/material-no/1.4005 "1.4005") | [1.4005](/materials/material-no/1.4005 "1.4005") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 46 | 12,0-14,0 | 0,08-0,15 | 0,15-0,35 | — | 0,04 | ≤1,50 |
| [X15CrNi17-3](/materials/din-en/x15crni17-3 "X15CrNi17-3") | [1.4044](/materials/material-no/1.4044 "1.4044") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 33 | 15,0-18,0 | 0,12-0,20 | 0,025 | 2,00-3,00 | 0,035 | ≤1,00 |
| [1.4057](/materials/material-no/1.4057 "1.4057") | [1.4057](/materials/material-no/1.4057 "1.4057") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 63 | 15,0-17,0 | 0,12-0,22 | 0,015 | 1,50-2,50 | 0,04 | ≤1,50 |
| [1.4301](/materials/material-no/1.4301 "1.4301") | [1.4301](/materials/material-no/1.4301 "1.4301") 1.4 | [Stainless steels](/categories/stainless-steels "Stainless steels") | 170 | 17,5-19,5 | ≤0,07 | 0,015 | 8,00-10,5 | 0,045 | ≤2,00 |
| [S30400](/materials/uns/s30400 "S30400") | [1.4314](/materials/material-no/1.4314 "1.4314") 1.4 | [Special steels for aviation and aerospace](/categories/special-steels-for-aviation-and-aerospace "Special steels for aviation and aerospace") | 86 | 17,0-19,0 | ≤0,07 | 0,03 | 8,50-10,5 | 0,045 | ≤2,00 |

## 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")