EN 1.4918 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country/Standard: European Union / EN

Data updates

Latest Update: 2021-07
Total number of updates: 2
Update History
2014-04

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EN 1.4918 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.04 – 0.08
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
16.0 – 18.0
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 10216-5: 2021 / Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes

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EN 1.4918 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 487 properties — only a subset is shown here.

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EN 1.4918 Heat Treatments

  • Solution annealed (+AT): 1020-1100°C (for guidance only), cooling sufficiently rapid in water or air.

EN 1.4918 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
490 — 690 MPa
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Elongation, A
30 %
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Impact Energy
val1
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J
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  • 147 Cross References
  • 18 Composition
  • 32 Mechanical Properties
  • 21 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • 2 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 136 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
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