×
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

Davit Arm Eyebolt for Low Temperature Service (-50°F)

Davit Arm Eyebolt for Low Temperature Service (-50°F)

Davit Arm Eyebolt for Low Temperature Service (-50°F)

(OP)
Hello,

A customer has asked us to design a davit arm assembly for an outdoor manway, and want all materials certified for -50°F MDMT.

The design is per PIP VEFV1117 (manway on side of vertical tower).

I am having a tough time specifying the eyebolt material. Normally for warmer temperatures we would specify a galvanized 1030 eyebolt, but as far as I've found, this should only be good to +30°F per ASME specs.

Can anyone recommend a suitable material for an eyebolt with a certified low temperature of -50°F for outdoor operation?

Thanks all,
Marty

RE: Davit Arm Eyebolt for Low Temperature Service (-50°F)

marty007, could use stainless / non-ferrous, or take a reduction per UCS-66(b)?

I personally find applying MDMT requirements to non-pressure parts going a bit beyond the intent.

Regards,

Mike

RE: Davit Arm Eyebolt for Low Temperature Service (-50°F)

304 or 316 stainless both are rated down to liquid nitrogen boiling point; (-)320°F, IIRC. No 'certification' required, ASME recognizes this as an inherent property of these materials.

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