MLX17 (United States / SAE) Material Properties

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

Data updates

Latest Update: 2021-07
Total number of updates: 8
Update History:
2020-11 2019-06 2019-04 2019-03 2017-12 2017-11 2017-09

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Compression Yield Strength val1
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MPa view details
Tensile Strength 1103 MPa view details
Elongation, A 8 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) 331 view details
Rockwell Hardness (HR) val1
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Yield Strength, Rp0.2 val1
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ksi view details
Compression Yield Strength val1
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ksi view details
Tensile Strength 160 ksi view details
Elongation, A 8 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) 331 view details
Rockwell Hardness (HR) val1
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Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 215 GPa view details
Compression Modulus 200 GPa view details
Shear Modulus val1
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GPa view details
Density val1
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kg/dm³ view details
Density val1
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kg/dm³ view details
Density val1
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kg/dm³ view details
Density val1
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kg/dm³ view details
Poisson Coefficient val1
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Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 17.532 W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Modulus of Elasticity 27.6 E+03 — 31.2 E+03 ksi view details
Compression Modulus 29 E+03 ksi view details
Shear Modulus val1
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ksi view details
Density val1
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lb/in³ view details
Density val1
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lb/in³ view details
Density val1
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lb/in³ view details
Density val1
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lb/in³ view details
Poisson Coefficient val1
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Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Thermal Conductivity 10.1 BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
1.35 – 1.75
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.00 – 12.50
UNIT
%
CAS NUMBER
7440-47-3
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
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

SAE AMS 5937A: 2018 / Steel, Corrosion-Resistant, Bars, Wire, and Forgings 12Cr - 11Ni - 2Mo - 1.5Al - 0.3Ti Vacuum Induction Plus Vacuum Consumable Electrode Melted Solution Heat Treated, Precipitation Hardenable

Heat Treatments

  • Solution heat treated by heating to 840°C ± 14 (1545°F ± 25), holding at heat for 120 minutes ± 15, and quenching in oil or water, cooling to -73°C (-100°F) or colder, holding at that temperature for not less than 8 hours, and warming in air to room temperature.<br> Precipitation heat treating: H950 - temperature 510°C ± 6 (950°F ± 10), time 8 hours ± 0.3; H1000 - temperature: 538°C ± 6 (1000°F ± 10), time 8 hours ± 0.3.
  • Final heat treatment condition:<br />H950: Solution heat treating at 840°C (1545°F); Oil, or water; Within 24 hours of removal from quenchant cool to -68°C (-90°F) or colder for 8 hours minimum, and air warm to ambient; Aging: 510°C (950°F) for 8 hours;<br />H1000: Solution heat treating at 840°C (1545°F); Oil, or water; Within 24 hours of removal from quenchant cool to -68°C (-90°F) or colder for 8 hours minimum, and air warm to ambient; Aging: 538°C (1000°F) for 8 hours.<br />When cooling from aging, an oil or water quench is preferred for section sizes greater than about 76.2 mm.<br /><br />Air refers to ambient air. When vacuum furnaces are used for heat treating, cooling in the backfilling gas is acceptable where cooling in still air or air cool is specified.<br />If hardness exceeds the maximum specified, parts may be re-aged at the same or higher temperatures for a time not to exceed given values to obtain the required hardness.<br />To produce a lower hardness for pretested material, a set temperature up to 6°C (10°F) higher than specified may be used.<br />Soaking time for solution heat treatment is depending on thickness of the products.<br />Tolerance for soaking time shall be +10, -0 minutes for 30 minute ages; +15, -0 minutes for 1 hour ages; +30 minutes, -0 minutes for longer ages.<br />For sub-zero treatments, interruptions of the soaking period are permitted. The total soak time shall not include any time when the temperature is greater than -68°C (-90°F) due to interruptions.