HSLA Steel Properties at Elevated Temperatures 1

[Studbro]

I am looking for the mechanical properies of HSLA Steel at temperatures from 1200 to 1800 Deg F. This would include Yield, Tensile and Elongation. I am trying to form these materials at elevated temperature and am having trouble locating any documentation.

 

[metengr]

Studbro;
This is an open-ended question. What forming operations are you evaluating? Also, there are various grades of HSLA steels, have you settled on a particular grade?

One should have a basic understanding of the metallurgy involved with high strength low alloy steels. These steels behave differently in comparison to standard carbon steels during hot working and heat treatment.

 

[Studbro]

Metengr:
The specific application involves heating and stretching a webbed pattern. There is no direct tool contact with the material during forming.

We have currently settled into SAE050. We are considering 080 due to the higher yield strength and better physical properties of the end product. We are still looking for a material that has good elongation at elevated temperatures, low cost(obviously!). The higher the yield strength of the final product, the better. If Standard Carbon steels work better when hot formed, we would try immediately.

We cold form a lot of HSLA and Martensite materials on automotive bumper systems, famiiarity is primarily why we have settled on these materials for this new product. We are not familiar with the ability to hot form. It is not our intent to "heat treat" the final product, although increased hardness (without brittleness)would be a plus.

Thanks for your response

 

[midwestironman]

Did you get your answer regarding this material? The type of micro-alloying agent used to manufacture the HSLA will have a large effect on your success. Vanadium bearing steels are strengthened primarily through second phase particles, were as, niobium grades strengthen primarily through grain refinement.