MIL A-46173 Class 1 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: United States / MIL

Data updates

Latest Update: 2016-01
Total number of updates: 1
Update History

This material has 23 properties — only a subset is shown here.

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MIL A-46173 Class 1 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.3100 – 0.3500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.6500 – 0.9000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.6000 – 0.9000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
O
VALUE
val1
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UNIT
%
CAS NUMBER
7782-44-7; 17778-80-2
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-A-46173: 1976 / Armor, steel, plate, wrought, (esr) (3/16 through 3 inches, inclusive)

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MIL A-46173 Class 1 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 23 properties — only a subset is shown here.

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MIL A-46173 Class 1 Heat Treatments


  • All plates (class 1) in each lot, including samples, shall receive the same heat treatment except for such variations in tempering temperature as may be necessary to produce the hardness . In no case should the tempering temperature exceed 425°F (218°C) for class I armor. The austenitizing temperature may vary within a range of 50°F (10°C) above the temperature used for test plates, but in no case shall it exceed 1550°F (843°C).

MIL A-46173 Class 1 Mechanical Properties


Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
477 — 601
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Impact Energy
≥ 27 J
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MIL A-46173 Class 1 International Equivalent Materials


Showing 2 of 2 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
MIL
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%

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  • 2Cross References

  • 9Composition
  • 6Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • 2Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • -Total Suppliers