ASTM A735 Steel Properties

The below table outlines the material properties for ASTM A735 material including the young's modulus, yield strength, ultimate strength and other relevant mechanical properties required for structural and mechanical design.

Low alloy steel

Class 1
Class 2
Class 3
Class 4

ASTM A735 Young's Modulus

The Young's Modulus of ASTM A735 is 200,000 MPa.

ASTM A735 Ultimate Strength

The Ultimate Strength of ASTM A735 ranges between 620 and 723 MPa.

ASTM A735 Yield Strength

The Yield Strength of ASTM A735 ranges between 450 and 550 MPa depending on the material grade. See the below tables to get your specific material grade material strength.

Low alloy steel Steel Properties

Class 1 Material Properties

Unit System	Young's Modulus, E	Density, ρ	Ultimate Strength, F_u	Yield Strength, F_y	Thermal Expansion Coef., α	Poisson's Ratio, ν
Metric	200,000 MPa	7,800 kg/m³	620 MPa	450 MPa	12 1/°C	0.29
Imperial	29,000 ksi	487 lb/ft³	90 ksi	65 ksi	6.67 1/°F	0.29

Class 2 Material Properties

Unit System	Young's Modulus, E	Density, ρ	Ultimate Strength, F_u	Yield Strength, F_y	Thermal Expansion Coef., α	Poisson's Ratio, ν
Metric	200,000 MPa	7,800 kg/m³	653 MPa	485 MPa	12 1/°C	0.29
Imperial	29,000 ksi	487 lb/ft³	94 ksi	70 ksi	6.67 1/°F	0.29

Class 3 Material Properties

Unit System	Young's Modulus, E	Density, ρ	Ultimate Strength, F_u	Yield Strength, F_y	Thermal Expansion Coef., α	Poisson's Ratio, ν
Metric	200,000 MPa	7,800 kg/m³	685 MPa	515 MPa	12 1/°C	0.29
Imperial	29,000 ksi	487 lb/ft³	99 ksi	75 ksi	6.67 1/°F	0.29

Class 4 Material Properties

Unit System	Young's Modulus, E	Density, ρ	Ultimate Strength, F_u	Yield Strength, F_y	Thermal Expansion Coef., α	Poisson's Ratio, ν
Metric	200,000 MPa	7,800 kg/m³	723 MPa	550 MPa	12 1/°C	0.29
Imperial	29,000 ksi	487 lb/ft³	105 ksi	80 ksi	6.67 1/°F	0.29

ASTM A734 Steel Properties ASTM A736 Steel Properties