SAE 1078 Properties (Chem., Mech. & Rankings) 2022

 

In this post I'll talk about SAE 1078. First let's describe it and then have a look at its material's properties.

What is SAE 1078?

SAE 1078 is a high carbon steel with 0.78% carbon content, approximately.

Application

There is no known commercial application. However, they may be used in cutting tools such as knifes, drills or other tools that require some abrasion resistance.

UNS Number

G10780

Ok let's start with SAE 1078 Chemical Composition.

Chemical Composition

C, Carbon

0.72–0.85

Mn, Manganese

0.30–0.60

P, Phosphorus max.

0.040

S, Sulfur max.

0.050

Learn more about Chemical Composition.

Now it's the mechanical properties turn:

Yield Strength

430 - 570 MPa

Learn more about Yield Strength.

Tensile Strength

730 - 780 MPa

Learn more about Tensile Strength.

Elongation (min.)

11 - 14%.

Learn more about Elongation.

Reduction of Area (min. %)

34 - 45%.

Learn more about Reduction of Area.

Hardness

Brinell

220 - 230

Learn more about Hardness.

Density

7.8 g/cm3.

Learn more about Density.

Elastic Modulus

190 GPa.

Learn more about Elastic Modulus.

Poisson's ratio

0.29.

Learn more about Poisson's ratio.

Allowable Stress or Factor of Safety

Depends on the project (And its factor of safety).

Learn more about Allowable Stress or Factor of Safety.

My Material's Ranking Research

While engineers will often look for the cheapest material they can use, I took a different approach to material's selection to help newbie students.

I ranked materials according to their yield strengths and SAE 1078 currently ranks 36 in my yield strength index. This means there are other 35 materials that are more resistant.

Note: I've analysed 162 materials in order to create an yield strength index. Check my material's comparison post for more details.

SAE Classroom

Are you having trouble understanding the basics of SAE?

What is SAE: Classification and specification?

This video will walk you through:

References

ASTM A29 and other references.

Citation

When you need to include a fact or piece of information in an assignment or essay you should also include where and how you found that piece of information.

That gives credibility to your paper and it is sometimes required in higher education.

To make your life (and citation) easier just copy and paste the information below into your assignment or essay:

Luz, Gelson. SAE 1078 Properties (Chem., Mech. & Rankings). Materials Blog. Gelsonluz.com. dd mmmm. yyyy. URL

Now replace dd, mmmm and yyyy with the day, month, and year you browsed this page. Also replace URL for the actual url of this page. This citation format is based on MLA.

Equivalent Specifications

ASTM A29⁣
ASTM A510⁣
ASTM A576⁣
ASTM A713⁣
ASTM A830⁣
SAE J1397⁣
SAE J403⁣
SAE J412⁣