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303 stainless steel magnetic properties 3
- Thread starter Ablondi
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EdStainless
Materials
It depends on two things.
What the perm is coming to you.
and how hard you work the material.
If the bar is well annealed to start with (<1.02) the it sounds doable.
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Rust never sleeps
Neither should your protection
What the perm is coming to you.
and how hard you work the material.
If the bar is well annealed to start with (<1.02) the it sounds doable.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
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I think as long as you avoid significant cold work (forging and forming operations) you will have no problem with typical screw machine operations. Keep your cutting rates on the low side to be sure. You will have to have tests performed to be sure and they can only be done on standard test pieces, not finished parts. I would ask your customer how they intend to check it.
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EdStainless
Materials
There is a difference between magnetic (ferromangetic) and magnetised.
It is possible that due to the materials thermomechanical history it is slightly ferromangetic. This could be due to retained delta ferrite or some strain induced matrensite. If this is the case then you may be magnetising the material by the way that you handle it.
We manufacture cold finihsed tubing all of the time that has magnetic permiablity above 5, but it must be demagnetised to a specified residual field level.
It is also possible that you have material that is very lean on Ni (to save money) and therefore not real stable. It could be that your machining is working the surface layer enough to make it profoundly magnetic. I doubt this, 303 machines well enough that you shouldn't impart much work.
If the bar is non-ferromagnetic to start with you sould be able to manufacture non-ferromagnetic parts.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
It is possible that due to the materials thermomechanical history it is slightly ferromangetic. This could be due to retained delta ferrite or some strain induced matrensite. If this is the case then you may be magnetising the material by the way that you handle it.
We manufacture cold finihsed tubing all of the time that has magnetic permiablity above 5, but it must be demagnetised to a specified residual field level.
It is also possible that you have material that is very lean on Ni (to save money) and therefore not real stable. It could be that your machining is working the surface layer enough to make it profoundly magnetic. I doubt this, 303 machines well enough that you shouldn't impart much work.
If the bar is non-ferromagnetic to start with you sould be able to manufacture non-ferromagnetic parts.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
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