Question

What is the endurance limit for AISI 1020 CD steel?

1) 100 MPa
2) 150 MPa
3) 200 MPa
4) 235 MPa

Answer 1

The endurance limit for AISI 1020 CD steel is typically around 150 MPa. This value can be influenced by heat treatment and mechanical work.

Step-by-step explanation:

The endurance limit is an important property of materials, especially in the context of mechanical engineering. When discussing steels such as AISI 1020 CD (cold drawn), the endurance limit is the stress level below which an infinite number of loading cycles can be applied to a material without causing fatigue failure. For AISI 1020 CD steel, the endurance limit is typically around 150 MPa. It is worth noting that this value can vary depending on the specific heat treatment and mechanical work done on the steel.