SA-638 Grade 660 Type 1 (United States / ASME) Material Properties
Alternative designations:
25Ni-15Cr-2Ti
Material group:
Ferrous Alloys / Stainless steels
Country/Standard:
United States / ASME
Data updates
Latest Update: 2024-02
Total number of updates: 4
Update History:
2024-01
2023-11
2023-10
Mechanical Properties
Temperature
Physical Properties
Temperature
Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Thermal Conductivity
val1
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W/(m∙°C)
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Thermal Conductivity
val1
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W/(m∙°C)
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Thermal Conductivity
val1
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W/(m∙°C)
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°F
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°F
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°F
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°F
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Thermal Conductivity
val1
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BTU/(h∙ft∙°F)
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Thermal Conductivity
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BTU/(h∙ft∙°F)
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Thermal Conductivity
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BTU/(h∙ft∙°F)
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Composition
CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.35
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.0010 – 0.010
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
≤ 0.08
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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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
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
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
ASME Boiler and Pressure Vessel Code An International Code Section II - Part A Ferrous Material Specifications / American Society of Mechanical Engineers / 2023
Heat Treatments
- Solution treatment: 900 ± 15°C (1650 ± 25°F), hold 2 h, oil or water quench.<br>Precipitation hardening treatment: 705 to 760°C (1300 to 1400°F), hold 16 h min, air cool or furnace cool.
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281 Cross References
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12 Composition
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41 Mechanical Properties
-
80 Physical Properties
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1 Heat Treatment
-
- Metallography
-
- Machinability
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1 Stress-Strain
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- Formability
-
- Fatigue
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- Fracture
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22 Creep
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- Joints
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- Coatings
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16 Dimensions
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- Tribology
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- Corrosion
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- Ageing
-
- Weatherability
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- Irradiation
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146 Total Suppliers