WL 1.4939 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country/Standard: Germany / WL

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WL 1.4939 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.08 – 0.13
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.0 – 12.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.5 – 0.9
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
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

WL 1.4939-1: 1981 / High temperature heat-treatable chromium-nickel-molybdenum steel with about 0.1C-12Cr-2.5Ni-1.8Mo-0.3V, remelted; sheets and strips

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WL 1.4939 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
22 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.667 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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This material has 272 properties — only a subset is shown here.

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WL 1.4939 Heat Treatments

  • Annealed: process annealed after cold deformation (680-700°C) 6 h/air. Quenched and tempered or precipitation treated: hardening (1050+/-15°C)/air or oil tempering (640-720°C)/air. Quenched and tempered or precipitation treated to higher strength: hardening (1050+/-15°C)/air or oil tempering (560-640°C)/air.

WL 1.4939 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
900 — 1300 MPa
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Elongation, A
10 %
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Reduction of Area
val1
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%
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Impact Energy
val1
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J
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Brinell Hardness (HB)
269 — 388
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Vickers Hardness (HV)
val1
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  • 111 Cross References
  • 20 Composition
  • 46 Mechanical Properties
  • 21 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • 7 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 1 Creep
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  • - Dimensions
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