I WANT TO KNOW HOW TO HARDEN AISI 304 TO 250 BHN OR 22.5-25 HRC .
I KNOW COLD WORKING IS POSSIBLE BUT I GOT NO IDEA HOW TO USE IT TO HARDEN USING COLD WORKING. I HAVE TAKEN A ROD AND HAVE TO THREAD IT CAN I HARDEN IT AFTER THREADING THE 304 ROD
2006-07-13 02:01:55 · 2 answers · asked by sandeep_frank 1 in Science & Mathematics ➔ Engineering
Typically 304 SS cannot be hardened. You can cold work the rod prior to threading but results will be variable. Try another corrosion resistant alloy such as A286, that has a hardness HRC 38 - 43, which could be taken down if required. If you are looking for a standard thread, McMaster Carr sells bolts right from the website and you could cut them to length. A286 (AMS 5732) is corrosion resistant and an excellent substitute for 304 series stainless steel.
2006-07-13 02:54:44 · answer #1 · answered by Krazykraut 3 · 1⤊ 0⤋
AISI 304 stainless steel is not hardenable by heat treatment. Some work-hardening takes place during cold-forging/cold working.
2006-07-13 08:26:22 · answer #2 · answered by raj 7 · 0⤊ 0⤋