MIL 18-8 Type 347 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: United States / MIL

Data updates

Latest Update: 2018-01
Total number of updates: 2
Update History
2014-10

This material has 1369 properties — only a subset is shown here.

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MIL 18-8 Type 347 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.0800
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
17.0000 – 19.0000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.5000
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Nb+Ta
VALUE
val1
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UNIT
%
CAS NUMBER
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

MIL-T-6737C: 1983 / Tubing, steel, corrosion and heat resisting (18-8 stabilized), welded

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MIL 18-8 Type 347 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
179.6 — 215 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Heat Capacity
val1
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J/(kg∙°C)
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Melting Temperature
val1
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°C
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Poisson Coefficient
val1
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Shear Modulus
val1
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GPa
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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This material has 1369 properties — only a subset is shown here.

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MIL 18-8 Type 347 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
517 — 1053.3 MPa
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Elongation, A
val1
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%
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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  • 30Cross References
  • 30Composition
  • 594Mechanical Properties
  • 333Physical Properties
  • -Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 33Joints
  • -Coatings
  • 1Dimensions
  • -Tribology
  • 346Corrosion
  • 2Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers