ASME SA-737 Grade B 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 2019-11

This material has 564 properties — only a subset is shown here.

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ASME SA-737 Grade B Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
1.15 – 1.50
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb
VALUE
≤ 0.05
UNIT
%
CAS NUMBER
7440-03-1
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 / 2025

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ASME SA-737 Grade B 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
val1
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Thermal Conductivity
47.3 W/(m∙°C)
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This material has 564 properties — only a subset is shown here.

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ASME SA-737 Grade B Heat Treatments

  • The material shall be normalized by heating to a suitable temperature which produces an austenitic structure, but not exceeding 925°C (1700°F), holding a sufficient time to attain uniform heat throughout the material, and cooling in air.
    If approved by the purchaser, cooling rates faster than air cooling are permitted for improvement of strength or toughness, provided the plates are subsequently tempered in the temperature range from 595 to 705°C (1100 to 1300°F).

ASME SA-737 Grade B Mechanical Properties


Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
345 MPa
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Tensile Strength
485 — 620 MPa
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Elongation, A
23 %
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  • 213 Cross References

  • 6 Composition
  • 38 Mechanical Properties
  • 68 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability

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

  • - Joints
  • - Coatings
  • 34 Dimensions
  • - Tribology

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

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