UNI X2CrNiMoN18-12-4 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country/Standard: Italy / UNI

Data updates

Latest Update: 2025-07
Total number of updates: 5
Update History
2020-03 2016-08 2015-03 2014-04

This material has 670 properties — only a subset is shown here.

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UNI X2CrNiMoN18-12-4 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.030
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
16.5 – 19.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

EN 10088-1: 2023 / Stainless steels - Part 1: List of stainless steels

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UNI X2CrNiMoN18-12-4 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
val1
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kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
15 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.75 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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This material has 670 properties — only a subset is shown here.

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UNI X2CrNiMoN18-12-4 Heat Treatments

  • Hot forming: 1150-850°C, air cooling.
    AT - Solution annealing: 1070-1150°C, air or water cooling.
  • Hot working: 1150 - 850°C, air cooling. Annealing: 1070 - 1150°C, water or air cooling.

UNI X2CrNiMoN18-12-4 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
270 MPa
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Yield Strength, Rp1
val1
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MPa
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Tensile Strength
500 — 2100 MPa
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Elongation, A
20 %
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Impact Energy
val1
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J
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  • 198 Cross References
  • 27 Composition
  • 109 Mechanical Properties
  • 19 Physical Properties
  • 2 Heat Treatment
  • - Metallography
  • - Machinability
  • 6 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • 12 Joints
  • - Coatings
  • 140 Dimensions
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