ASME SA-307 Grade A 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: 4
Update History
2024-01 2023-11 2016-02

This material has 137 properties — only a subset is shown here.

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ASME SA-307 Grade A Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.29
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
≤ 1.20
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.04
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-307 Grade A 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 137 properties — only a subset is shown here.

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ASME SA-307 Grade A Heat Treatments

  • Cold headed fasteners with head configurations other than hex having a minimum head height less than or equal to 5 D (D is nominal diameter) shall be stress relief annealed at a minimum temperature of 875°F.

ASME SA-307 Grade A Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
414 MPa
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Elongation, A
18 %
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Brinell Hardness (HB)
121 — 241
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Rockwell Hardness (HR)
val1
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  • 4 Cross References

  • 4 Composition
  • 34 Mechanical Properties
  • 82 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability

  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 9 Creep

  • - Joints
  • - Coatings
  • 1 Dimensions
  • - Tribology

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

  • 2 Total Suppliers