×
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

bolt grades and kips to foot pound conversions
6

bolt grades and kips to foot pound conversions

bolt grades and kips to foot pound conversions

(OP)
Hi,  I have two questions.  First off what grades are A307, A325, and A490 bolts?  Second what is the formula to convert kips to foot pounds?  I appreciate your time and information.  Thanks, Cory

RE: bolt grades and kips to foot pound conversions

2
Working with US units can be quite confusing if you haven't been brough up with them, which includes just about everyone outside the US and Liberia!  Here are a few key conversion factors.

Mass/Length
1 lb/ft = 1.488 kg/m
1 lb/yd = 0.4961 kg/m

Mass/Area
1 lb/ft2 = 4.882 kg/m2

Force
1 kip = 4.448 kN

Moment
1 kip-in = 0.113 kNm

Stress
1 kip/in2 = 6.895 MPa

Modulus
1 in3 = 16387 mm3

Second Moment of Area
1 in4 = 416231 mm4

RE: bolt grades and kips to foot pound conversions

A307 is basic carbon steel with an allowable tensile stress of 20 ksi.
A325 is a high strength heavy hex structural bolt with an allowable tensile stress of 44 ksi and has 3 different types (Type 1, Type 2 and Type 3).
A490 is a heat treated heavy hex structural bolt with an allowable tensile stress of 54 ksi.

RE: bolt grades and kips to foot pound conversions

See www.onlineconversion.com to convert any unit to any other unit.

Keep in mind that US customary weight units are often confused with SI mass units.

Jeff

Jeffrey T. Donville, PE
TTL Associates, Inc.
www.ttlassoc.com

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