ASME SA-178 Grade C Structural and constructional steels

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

Data updates

Latest Update: 2024-02
Total number of updates: 5
Update History
2024-01 2023-11 2023-10 2020-12

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ASME SA-178 Grade C Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.35
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
≤ 0.80
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.035
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9

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-178 Grade C Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
val1
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GPa
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Density
7.67 — 7.86 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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Thermal Conductivity
60.4 W/(m∙°C)
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This material has 265 properties — only a subset is shown here.

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ASME SA-178 Grade C Heat Treatments

  • After welding, all tubes shall be heat treated at a temperature of 900°C (1650°F) or higher and followed by cooling in air or in the cooling chamber of a controlled-atmosphere furnace. Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 650°C (1200°F) or higher.

ASME SA-178 Grade C Mechanical Properties


Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
255 MPa
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Tensile Strength
415 MPa
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Elongation, A
30 %
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  • 6 Cross References

  • 4 Composition
  • 38 Mechanical Properties
  • 83 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability

  • 1 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 124 Creep

  • - Joints
  • - Coatings
  • 6 Dimensions
  • - Tribology

  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation

  • 2 Total Suppliers