A 400 8742 (United States / ASTM) Material Properties

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

Data updates

Latest Update: 2024-02
Total number of updates: 2
Update History:
2013-10

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 862 — 1275 MPa view details
Tensile Strength 1000 — 1413 MPa view details
Brinell Hardness (HB) 293 — 429 view details
Rockwell Hardness (HR) val1
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Yield Strength, Rp0.2 125 — 184.9 ksi view details
Tensile Strength 145 — 204.9 ksi view details
Brinell Hardness (HB) 293 — 429 view details
Rockwell Hardness (HR) val1
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view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

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Heat Treatments

  • Classes P and Q should be capable of developing the required mechanical properties by liquid quenching from a suitable austenitizing temperature, and tempering at 800°F (427°C) or higher..