How can we solder two stainless steel rods material- Stainless steel 304 or SS316

OD-6mm ID-1.6mm Depth-4mm

Or there is any other better option to join these two parts? parts to be solder

  • 1
    $\begingroup$ cut threads .... $\endgroup$
    – jsotola
    Commented Jan 11, 2023 at 9:11
  • 2
    $\begingroup$ If all that was machined yourself, you could have probably made that to be press fit. $\endgroup$
    – DKNguyen
    Commented Jan 11, 2023 at 15:13
  • $\begingroup$ the part will rotate at around 1000 rpm, so there might be chances to lose. $\endgroup$ Commented Jan 12, 2023 at 11:22

1 Answer 1


solder generally will not work on stainless steel (it can't stick because of the oxide that forms on the surface of the steel). You can weld it instead, using welding wire or rod specifically compounded to work with stainless. If the join between the two parts is threaded, you can lock them together using a type of glue called thread locker which is effective yet allows the parts to be torqued apart at some later time if necessary.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.