Tensile Strength
400 – 550 MPa (58 – 80 ksi)
This is the maximum stress that A36 steel can withstand
Yield Strength
≥ 250 MPa (36,000 psi)
This is the origin of the name of A36 steel, and it is the most iconic performance parameter
Elongation
50mm gauge length ≥ 20%
A36 steel has excellent elongation performance, which makes A36 have excellent deformation resistance.
Hardness
67–83 Rockwell
A36 has a lower hardness, so its wear resistance is poor, but it also indirectly reflects the ease of processing of A36.
Charpy V-Notch Impact Test
≥27 J (20°C)
The ASTM A36 standard does not have a rigid requirement for the Charpy V-notch impact test. A36 steel is not suitable for use in low-temperature environments, as the impact energy will drop sharply at low temperatures.
Modulus of Elasticity
200 GPa (29,000 ksi)
It determines the stiffness of A36 and is a constant value for almost all steels, regardless of the strength grade.
Poisson’s Ratio
0.26-0.30
The value of Poisson’s ratio is constant at 0.27 – 0.30 for almost all steels, including A36 steel.
