ASTM A 434 Class BD Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: United States / ASTM

Data updates

Latest Update: 2026-01

Total number of updates: 3

Update History

2018-02 2017-04

This material has 190 properties — only a subset is shown here.

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ASTM A 434 Class BD Physical Properties

Temperature

0 - 30°C

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 190 properties — only a subset is shown here.

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ASTM A 434 Class BD Heat Treatments

The material shall be uniformly heated to the austenitizing temperature, soaked for a sufficient length of time to produce the desired structure (a lot thus heated being known as a "quenching charge"), and quenched in a suitable medium under substantially uniform conditions for each quenching charge. The material shall then be uniformly reheated to the proper temperature for tempering (a lot thus reheated being known as a "tempering charge"), and allowed to cool uniformly. The temperature selected for tempering shall be not less than 427°C (800°F). Material cold drawn after heat treatment shall be stress relieved, when this is necessary, in order to meet the specified mechanical properties. Cold-finished bars may be stress relieved after straightening.

ASTM A 434 Class BD Mechanical Properties

Temperature

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

PROPERTY / VALUE

Yield Strength, Rp0.2

690 MPa

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Tensile Strength

900 MPa

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Elongation, A

14 %

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Reduction of Area

val1 %

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- Cross References

- Composition
160 Mechanical Properties
3 Physical Properties
1 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
- Fatigue
- Fracture
- Creep

- Joints
- Coatings
26 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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