ASME SA-723 Grade 3 Class 3 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 2023-10

This material has 165 properties — only a subset is shown here.

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ASME SA-723 Grade 3 Class 3 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 0.40

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

0.80 – 2.00

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 0.90

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

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-723 Grade 3 Class 3 Physical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

val1 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 10^-6/°C

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Thermal Conductivity

41 W/(m∙°C)

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This material has 165 properties — only a subset is shown here.

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ASME SA-723 Grade 3 Class 3 Heat Treatments

Heat treatment shall consist of normalizing (which may be part of the preliminary treatment), reaustenitization, liquid quenching, and tempering. The forgings shall be quenched in a suitable liquid medium by spraying or immersion. Quenching shall be followed by tempering at a minimum temperature of 540°C (1000°F). The minimum time at tempering temperature shall be 1.2 minutes/mm of maximum section thickness, unless otherwise agreed between supplier and purchaser.

ASME SA-723 Grade 3 Class 3 Mechanical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Yield Strength, Rp0.2

965 MPa

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Tensile Strength

1070 MPa

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Elongation, A

13 %

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Reduction of Area

val1 %

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Impact Energy

val1 J

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12 Cross References

9 Composition
37 Mechanical Properties
83 Physical Properties
1 Heat Treatment
- Metallography
- Machinability

1 Stress-Strain
- Formability
- Fatigue
- Fracture
22 Creep

- Joints
- Coatings
- Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

- Total Suppliers