SAE 40SiNiCrMoV10 Structural and constructional steels

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

Data updates

Latest Update: 2024-06
Total number of updates: 1
Update History

This material has 65 properties — only a subset is shown here.

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SAE 40SiNiCrMoV10 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.37 – 0.44
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.65 – 1.05
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.50 – 0.95
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
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

SAE AMS 6499C: 2024 / Steel, Bars, Forgings, Mechanical Tubing and Forging Stock, 2.7Si - 0.85Cr - 1.8Ni - 0.4Mo - 0.2V - (0.37 - 0.44C) Premium Aircraft Quality, Double Vacuum Melted

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SAE 40SiNiCrMoV10 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 65 properties — only a subset is shown here.

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SAE 40SiNiCrMoV10 Heat Treatments


  • Anneal by heating to 955°C ± 14°C (1750°F ± 25°F), holding at heat for 60 minutes + 5, -0 minutes, and transfer to a furnace at 700°C ± 14°C (1290°F ± 25°F), holding at heat for 24 hours ± 1, and cooling to room temperature at a rate equivalent to air cooling.

    Hardened by heating to 940°C ± 14°C (1720°F ± 25°F), holding at heat for 60 minutes + 5, -0 minutes and quenching in oil.

    Within 4 hours ± 0.4 after quenching, sub-zero treat at -73°C (-100°F) holding at temperature for 4 hours ± 0.4.

    Air warm to room temperature.

    Temper by heating to 302°C ± 6°C (575°F ± 10°F), holding at heat for 2 hours ± 0.2, cooling in air to room temperature, then temper a second time by reheating to 302°C ± 6°C (575°F ± 10°F), holding at heat for 2 hours ± 0.2, and cooling in air.

SAE 40SiNiCrMoV10 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≥ 1027 MPa
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Brinell Hardness (HB)
≤ 311
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Elongation, A
≥ 7 %
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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Grain Size
val1
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SAE 40SiNiCrMoV10 International Equivalent Materials


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MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official

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  • 2Cross References

  • 9Composition
  • 13Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

  • -Joints
  • -Coatings
  • 36Dimensions
  • -Tribology

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

  • 1Total Suppliers