×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Round Bar equivalent to ASTM A-131 Gr EH 36

Round Bar equivalent to ASTM A-131 Gr EH 36

Round Bar equivalent to ASTM A-131 Gr EH 36

(OP)
I have a specifcation that calls for 3/4" and 7/8" round bar to be made out of ASTM A-131 Grade EH36 material. Key consideration is being able to meet the CVN requirement of ~25 ft-lbs at -40C. We will be using this material for ROV handles in offshore Deepwater applications. Our materials specialist is concerned that we need to ensure we are away from the brittle to ductile transition zone at our 39F operting temperature and with ROVs clamping on and tugging need to be rather ductile at the lower temperature. We can relax the standard some to go to 25 ft-lbs at -4F and DH36 could work. However, cannot find a supplier of the material in bar stock. We could have some made but schedule is not permitting and we don't need 180 ton minimum order. My requirements are limited to 100 to 120 ft of each size (3/4" dia & 7.8" dia.). ~ 450 lbs.

What are other alternatives that are available in stock and can meet the CVN requirements?    

RE: Round Bar equivalent to ASTM A-131 Gr EH 36

Could you go with A-131 plate and cut along the rolling direction to 'make' your bar?

RE: Round Bar equivalent to ASTM A-131 Gr EH 36

(OP)
I would be a bit concerned about the HAZ for a flame cut as narrow as these bars need to be. Could watercut but still a timely and costly proposition. Might be able to go with A572 Gr 50 with a fully killed fine grain process, but not sure the availablity.   

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!


Resources