SA-403 CR304L (United States / ASME) Material Properties

Alternative designations: 18Cr-8Ni
Material group: Ferrous Alloys / Stainless steels
Country/Standard: United States / ASME

Data updates

Latest Update: 2024-02
Total number of updates: 5
Update History:
2023-11 2023-10 2021-02 2017-10

Mechanical Properties


Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 97.2 — 1829.7 MPa view details
Yield Strength, Rp0.2 val1
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MPa
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Yield Strength, Rp0.2 val1
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MPa
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Yield Strength, Rp0.2 val1
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MPa
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Yield Strength, Rp0.2 val1
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MPa
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Tensile Strength 695.3 — 2183.5 MPa view details
Tensile Strength val1
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MPa
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Tensile Strength val1
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MPa
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Tensile Strength val1
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MPa
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Tensile Strength val1
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MPa
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Elongation, A 1.6 — 58.3 % view details
Elongation, A val1
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%
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Elongation, A val1
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%
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Reduction of Area val1
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%
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Reduction of Area val1
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%
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Impact Energy val1
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J
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Impact Energy val1
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J
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Impact Energy val1
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J
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Yield Strength, Rp0.2 14.1 — 265.4 ksi view details
Yield Strength, Rp0.2 val1
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ksi
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Yield Strength, Rp0.2 val1
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ksi
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Yield Strength, Rp0.2 val1
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ksi
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Yield Strength, Rp0.2 val1
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ksi
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Tensile Strength 100.8 — 316.7 ksi view details
Tensile Strength val1
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ksi
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Tensile Strength val1
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ksi
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Tensile Strength val1
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ksi
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Tensile Strength val1
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ksi
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Elongation, A 1.6 — 58.3 % view details
Elongation, A val1
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%
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Elongation, A val1
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%
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Reduction of Area val1
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%
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Reduction of Area val1
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%
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Impact Energy val1
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ft·lb
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Impact Energy val1
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ft·lb
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Impact Energy val1
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ft·lb
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Physical Properties


Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 179.1 — 211.8 GPa view details
Modulus of Elasticity val1
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GPa
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Modulus of Elasticity val1
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GPa
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Modulus of Elasticity val1
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GPa
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Modulus of Elasticity val1
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GPa
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Shear Modulus val1
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GPa
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Density val1
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kg/dm³
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Poisson Coefficient val1
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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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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 0.069 — 14.39 W/(m∙°C) view details
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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Thermal Conductivity val1
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W/(m∙°C)
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Heat Capacity val1
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J/(kg∙°C)
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Electrical Resistivity 0.482 — 0.704 Ω∙mm²/m view details
Electrical Resistivity val1
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Ω∙mm²/m
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Electrical Resistivity val1
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Ω∙mm²/m
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Electrical Resistivity val1
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Ω∙mm²/m
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Electrical Resistivity val1
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Ω∙mm²/m
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Melting Temperature val1
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°C
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Modulus of Elasticity 26 E+03 — 30.7 E+03 ksi view details
Modulus of Elasticity val1
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ksi
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Modulus of Elasticity val1
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ksi
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Modulus of Elasticity val1
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ksi
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Modulus of Elasticity val1
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ksi
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Shear Modulus val1
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ksi
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Density val1
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lb/in³
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Poisson Coefficient val1
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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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Coefficient of Thermal Expansion (CTE) val1
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10-6/°F
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Thermal Conductivity 0.04 — 8.31 BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F)
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Thermal Conductivity val1
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BTU/(h∙ft∙°F)
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Thermal Conductivity val1
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BTU/(h∙ft∙°F)
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Thermal Conductivity val1
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BTU/(h∙ft∙°F)
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Heat Capacity val1
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BTU/(lb∙°F)
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Electrical Resistivity 801 E-06 — 1.17 E-03 Ω∙circular·mil/ft view details
Electrical Resistivity val1
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Ω∙circular·mil/ft
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Electrical Resistivity val1
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Ω∙circular·mil/ft
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Electrical Resistivity val1
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Ω∙circular·mil/ft
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Electrical Resistivity val1
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Ω∙circular·mil/ft
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Melting Temperature val1
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°F
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Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.030
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
18.0 – 20.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.00
UNIT
%
CAS NUMBER
7439-96-5
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

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 annealed at min 1040°C (1900°F) until the chromium carbides go into solution and quenched in water or other rapid cooled.