SAE M50 NIL Structural and constructional steels

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

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This material has 150 properties — only a subset is shown here.

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SAE M50 NIL Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.11 – 0.15
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
≤ 0.25
UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Cr
VALUE
4.00 – 4.25
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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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
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
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

SAE AMS 6278F: 2020 / Steel, Bars, Forgings, and Tubing 4.1Cr - 3.4Ni - 4.2Mo - 1.2V (0.11 - 0.15C) Premium Aircraft-Quality for Bearing Applications Double Vacuum Melted

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SAE M50 NIL 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 150 properties — only a subset is shown here.

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SAE M50 NIL Heat Treatments


  • Bars, forgings, tubing, and forging stock shall have given average hardness after being heat treated to 1093 - 1107°C (2000 - 2025°F) by any convenient means, held to equalize at temperature, and either quenched into salt bath at 593 - 621°C (1100 - 1150°F), held in salt bath for 2 ± 0.2 minutes, and air cooled to room temperature or directly cooled to room temperature at a rate equivalent to air cooling, and tempered for 2 ± 0.25 hours at 521 - 552°C (975 - 1025°C).

SAE M50 NIL Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≤ 862 MPa
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Brinell Hardness (HB)
≤ 272
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Rockwell Hardness (HR)
≥ 27
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SAE M50 NIL International Equivalent Materials


Showing 15 of 48 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
YB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
YB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 48Cross References

  • 12Composition
  • 7Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

  • 43Total Suppliers