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Tensile Testing of Nelson Stud
4

Tensile Testing of Nelson Stud

Tensile Testing of Nelson Stud

(OP)
Would anyone happen to know if tensile testing a Nelson Stud that is only 2-1/2" in length is generally required? Or given the length of the specimen, would a hardness test be sufficient?  I am unable to find a lab outside of my own that has a machine capable of holding something so small.  Any help would be greatly appreciated.

RE: Tensile Testing of Nelson Stud

Enerpac makes a hollow ram that may fill the bill.  If you are testing the weld, is would suggest looking at AWS D1.1 section 7 (I think).   

The best way to test something is to squeeze it, slowly, until it breaks!

RE: Tensile Testing of Nelson Stud

They are often field tested by bending in the field using a hammer...

Dik

RE: Tensile Testing of Nelson Stud

Depending on application, studs can be tested by applying a torque or a rake test (with a chipping hammer).

RE: Tensile Testing of Nelson Stud

Adding to the post by metengr I've see a hardened bar machined to accept the stud and base that with or without a hardened washer allows a measurement of the torque to break the weld.

Also I've seen a lot of hammer test. I was told once this was with a calibrated hammer and certified tester, ha, ha.  

RE: Tensile Testing of Nelson Stud

(OP)
Thanks for your help people.

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