Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


AISI 4140 110ksi

AISI 4140 110ksi

AISI 4140 110ksi


ASME II part D has a material G41400 with 80YS/100TS. This material is listed with de-rating factors at temperatures.

Can I use the same de-rating percentage but for G41400 which was hardened to 110YS/135TS

RE: AISI 4140 110ksi

I would not. The effect of temperature on tensile strength properties is not the same as a tempering parameter to predict response to hardness. The values in Part D consist of actual hot tensile testing results.

RE: AISI 4140 110ksi

Thanks for reply

Do you know any other standard except ASME Part D where that material (AISI 4140 110ksi ) might be listed?

RE: AISI 4140 110ksi

MMPDS fig. lists some data for temperature effects on tensile properties of AISI low-alloy steels.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close