AS/NZS 3679.1: Hot-rolled bars & sections Steel Properties

The below table outlines the material properties for AS/NZS 3679.1: Hot-rolled bars & sections material including the young's modulus, yield strength, ultimate strength and other relevant mechanical properties required for structural and mechanical design.

Flats and sections

Hexagons, rounds and squares

AS/NZS 3679.1: Hot-rolled bars & sections Young's Modulus

The Young's Modulus of AS/NZS 3679.1: Hot-rolled bars & sections is 200,000 MPa.

AS/NZS 3679.1: Hot-rolled bars & sections Ultimate Strength

The Ultimate Strength of AS/NZS 3679.1: Hot-rolled bars & sections ranges between 440 and 480 MPa.

AS/NZS 3679.1: Hot-rolled bars & sections Yield Strength

The Yield Strength of AS/NZS 3679.1: Hot-rolled bars & sections ranges between 280 and 330 MPa depending on the material grade. See the below tables to get your specific material grade material strength.

Flats and sections Steel Properties

300 Material Properties

Unit System	Yield Strength, F_y	Ultimate Strength, F_u	Young's Modulus, E	Density, ρ	Poisson's Ratio, ν	Thermal Expansion Coef., α
Metric	280 MPa	440 MPa	200,000 MPa	7,850 kg/m³	0.29	11.7 1/°C

350 Material Properties

Unit System	Yield Strength, F_y	Ultimate Strength, F_u	Young's Modulus, E	Density, ρ	Poisson's Ratio, ν	Thermal Expansion Coef., α
Metric	330 MPa	480 MPa	200,000 MPa	7,850 kg/m³	0.29	11.7 1/°C

Hexagons, rounds and squares Steel Properties

300 Material Properties

Unit System	Yield Strength, F_y	Ultimate Strength, F_u	Young's Modulus, E	Density, ρ	Poisson's Ratio, ν	Thermal Expansion Coef., α
Metric	280 MPa	440 MPa	200,000 MPa	7,850 kg/m³	0.29	11.7 1/°C

350 Material Properties

Unit System	Yield Strength, F_y	Ultimate Strength, F_u	Young's Modulus, E	Density, ρ	Poisson's Ratio, ν	Thermal Expansion Coef., α
Metric	320 MPa	480 MPa	200,000 MPa	7,850 kg/m³	0.29	11.7 1/°C

AS/NZS 3678: Hot-rolled plates & slabs Steel Properties AS 3597: Quenched & tempered steel plates Steel Properties