A 351 Grade CK20 (United States / ASTM) Material Properties

Material group: Ferrous Alloys / Cast steels
Country/Standard: United States / ASTM

Data updates

Latest Update: 2020-08
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 195 MPa view details
Tensile Strength 450 MPa view details
Elongation, A 30 % view details
Impact Energy val1
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J view details
Impact Energy val1
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J view details
Yield Strength, Rp0.2 28.3 ksi view details
Tensile Strength 65.3 ksi view details
Elongation, A 30 % view details
Impact Energy val1
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ft·lb view details
Impact Energy val1
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ft·lb view details

Physical Properties

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Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.04 – 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
23.0 – 27.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 1.50
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

A351/A351M: 2024 / Standard Specification for Castings, Austenitic, for Pressure-Containing Parts

Heat Treatments

  • Heating at minimum 1150°C (2100°F) followed by a quench in water or rapid cool by other means.