UNI 1.4912 Stainless steels

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

Data updates

Latest Update: 2021-07
Total number of updates: 4
Update History
2017-06 2015-01 2014-04

This material has 690 properties — only a subset is shown here.

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UNI 1.4912 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.04 – 0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
17.0 – 19.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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 10222-5: 2017 / Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels

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UNI 1.4912 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
0.73 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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This material has 690 properties — only a subset is shown here.

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UNI 1.4912 Heat Treatments

  • Solution annealed: 1070-1125°C, water or air cooled.
  • Solution annealed (+AT): 1070-1125°C (for guidance only), cooling sufficiently rapid in water or air.

UNI 1.4912 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
205 MPa
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Yield Strength, Rp1
val1
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MPa
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Tensile Strength
510 — 710 MPa
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Elongation, A
30 %
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Impact Energy
val1
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J
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  • 280 Cross References
  • 25 Composition
  • 61 Mechanical Properties
  • 21 Physical Properties
  • 2 Heat Treatment
  • - Metallography
  • - Machinability
  • 3 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 1 Creep
  • 12 Joints
  • - Coatings
  • 136 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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