Adjusting Hardness Values on Bolts
Adjusting Hardness Values on Bolts
(OP)
Hello everyone,
Since i am a heat transfer guy, my question is maybe some kind of dumb :)
For example according to SA 193, maximum allowed hardness values are given on table 3.
Since it indicates "hardness, max" can i, or is it possible to produce a given bolt (for example grade 7) with lower hardness values indicated there?
Thanks for your answer.
Since i am a heat transfer guy, my question is maybe some kind of dumb :)
For example according to SA 193, maximum allowed hardness values are given on table 3.
Since it indicates "hardness, max" can i, or is it possible to produce a given bolt (for example grade 7) with lower hardness values indicated there?
Thanks for your answer.





RE: Adjusting Hardness Values on Bolts
RE: Adjusting Hardness Values on Bolts
Aaron Tanzer
www.lehightesting.com
RE: Adjusting Hardness Values on Bolts
I need around 225 Brinell and 860 Mpa tensile(B7), but according to tables on A370 it doesnt look possible.
In other way, table says these values are "approximate" and note indicates that values can be changed according to manufacturing process.
So according to you experience,is 225 Brinell and 860 Mpa tensile is possible to manufacture?
Thanks in advance.
RE: Adjusting Hardness Values on Bolts
RE: Adjusting Hardness Values on Bolts
Aaron Tanzer
www.lehightesting.com
RE: Adjusting Hardness Values on Bolts