Material number · Europe · 9 designations

1.5920

1.5920 is the material number of the grade also listed as 18CrNi8. It is a material in the category Case hardening steels. We list 9 designations recorded for this grade, in the standards DIN / EN, AFNOR, UNE, ČSN, PN, SRPS and STAS.

Material no. 1.5920
Category Case hardening steels · 60 grades
Designations 9

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If you came for one of these

The most-used names for this grade.

DIN / EN18CrNi8This grade’s own name

About Case hardening steels

Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading.

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

Also known as

9 designations · 7 standards · nothing hidden

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

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

Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

DIN / ENEurope · 1

18CrNi8This grade’s own name

AFNORFrance · 2

UNESpain · 2

ČSNCzechia · 1

16231Indicative

PNPoland · 1

18H2N2Indicative

SRPSSerbia · 1

Č.5421Indicative

STASRomania · 1

18CrNi20Indicative

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

Iron — the balance, never listed by a standard — 95.1 %Cr — 2 %Ni — 2 %Mn — 0.5 %Traces & impurities · 0.5 %

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

Element	% by weight
	0.15–0.2
	0.15–0.4
	0.4–0.6
	0.035
	0.035
	1.8–2.1 —
	1.8–2.1
	≥ 0.02

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 publishedsource text, verbatim	Min% by weight	Max% by weight	Bound
C	0,15-0,20	0.150	0.200	Range
Al	(≥0,02)	0.020	—	Min
Si	0,15-0,40	0.150	0.400	Range
P	0,035	0.035	0.035	Exact
S	0,035	0.035	0.035	Exact
Cr	1,80-2,10	1.800	2.100	Range
Mn	0,40-0,60	0.400	0.600	Range
Ni	1,80-2,10	1.800	2.100	Range

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

Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo.

Physical & mechanical properties

Density7,78g/cm³Exact

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.

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.

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