ASME SA-542 Type D Class 4 Structural and constructional steels

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

Data updates

Latest Update: 2023-12
Total number of updates: 3
Update History
2021-03 2020-10

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ASME SA-542 Type D Class 4 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
B
VALUE
≤ 0.0020
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.11 – 0.15
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.00 – 2.50
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
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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 / 2025

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ASME SA-542 Type D Class 4 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 160 properties — only a subset is shown here.

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ASME SA-542 Type D Class 4 Heat Treatments

  • All plates shall be heat treated by heating to a suitable austenitizing temperature, holding for a sufficient period of time to attain uniform temperature throughout the thickness, and quenching in a suitable liquid medium by spraying or immersion. The minimum austenitizing temperature shall be 900°C (1650°F). After quenching, plates shall be tempered by heating to a suitable temperature and holding for a period of time of not less than 1.2 minutes/mm of thickness but not less than 1/2 hour. Plates over 100 mm in thickness shall receive a prior heat treatment of normalizing at, or water quenching from, a temperature within the range from 900 to 1010°C (1650 to 1850°F) before the final heat treatment. Plates ordered without the heat treatment shall be furnished in either the stress-relieved or the annealed condition. Minimum stress relieving temperature shall be 565°C (1050°F).

ASME SA-542 Type D Class 4 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
380 MPa
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Tensile Strength
585 — 760 MPa
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Elongation, A
20 %
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Impact Energy
val1
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J
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  • 63 Cross References
  • 13 Composition
  • 4 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 34 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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