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title: "X 10 CrNiTi 18 10 — Low-temperature steels"
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DIN / EN · Europe · 3 designations

# X 10 CrNiTi 18 10

X 10 CrNiTi 18 10 is a material in the category [Low-temperature steels](/categories/low-temperature-steels "Low-temperature steels"), held under material number 1.6903. Its recorded composition includes C ≤ 0.1%, Si ≤ 1%, Cr 17–19%, Mn ≤ 2% and Ni 10–12%. We list 2 designations recorded for this grade, in the standards AISI / SAE and ČSN. Its recorded density is 7.85 g/cm³.

- [*Material no.* **1.6903**](/materials/material-no/1.6903 "Material no.: 1.6903")
- [*Category* **Low-temperature steels · 4 grades**](/categories/low-temperature-steels "Category: Low-temperature steels · 4 grades")
- *Designations* **3**

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=8c28968d-904b-4b32-836c-f9e593046996&designation=a5ad5e61-3cdd-4915-9c94-c36683f5d60d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x-10-crniti-18-10.pdf "Datasheet as PDF")

## About Low-temperature steels

Low-temperature steels are steels designed to retain toughness and resist brittle fracture at low service temperatures. They are used for equipment and structures exposed to cold or cryogenic conditions, where reliable impact resistance is important.

This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.

## Also known as

 3 designations · 3 standards · nothing hidden

This grade’s own name recorded in our sources as this grade’s own designation under that standard.

Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.

Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

DIN / EN Europe · 1

- **X 10 CrNiTi 18 10 This grade’s own name Withdrawn**

AISI / SAE United States · 1

- [321 Indicative](/materials/aisi-sae/321 "AISI / SAE 321")

ČSN Czechia · 1

- [17246 Indicative](/materials/csn/17246 "ČSN 17246")

Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.

## Chemical composition

 8 elements on file · weight %

What this alloy is

Fe Cr Ni Mn

Iron — the balance, never listed by a standard — 67.3 % Cr — 18 % Ni — 11 % Mn — 2 % Traces & impurities · 1.7 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

| Element | % by weight |
|---|---|
| C | ≤ 0.1 |
| Si | ≤ 1 |
| Mn | ≤ 2 |
| P | 0.045 |
| S | 0.03 |
| Cr | 17–19 |
| Mo | ≤ 0.5 |
| Ni | 10–12 |

Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel

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 | ≤0,10 | — | 0.100 | Max |
| Si | ≤1,00 | — | 1.000 | Max |
| P | 0,045 | 0.045 | 0.045 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| Cr | 17,0-19,0 | 17.000 | 19.000 | Range |
| Mn | ≤2,00 | — | 2.000 | Max |
| Ni | 10,0-12,0 | 10.000 | 12.000 | Range |
| Mo | ≤0,50 | — | 0.500 | Max |

- (5xC)≤0,80
- (5xC)≤0,80
- (5xC)≤0,80

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

This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.

## 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 1.6, a shared category, and a published range for Cr / Ni 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.

[X3CrNiN18-10 1.6907

Cr 17,0-19,0 · Ni 9,00-11,5

- ΔCr 0.00
- ΔNi 0.75
- 26 designations](/materials/din-en/x3crnin18-10 "X3CrNiN18-10")

## 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=8c28968d-904b-4b32-836c-f9e593046996&designation=a5ad5e61-3cdd-4915-9c94-c36683f5d60d "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/x-10-crniti-18-10.pdf "Datasheet as PDF")
