410SS vs. 316SS vs. Something else?
410SS vs. 316SS vs. Something else?
(OP)
Hi all,
Just a quick question for all you stainless steel experts out there. We make a special type of tapping screw from 410 stainless because of its hardening capabilities and our requirement to produce a hardened drill tip. In addition, these fasteners will be used in external environments where corrosion is an obvious concern. We would love to use 305 or 316, but we are not able to achieve the high hardness in the tip that will allow us to drill through steel. My question is, is there a stainless steel alloy that can be both hardened by heat treatment, and offers the corrosion protection of 316? Obviously cost is the most important issue, but I'm open to suggestions.
Thanks a lot,
Don
Just a quick question for all you stainless steel experts out there. We make a special type of tapping screw from 410 stainless because of its hardening capabilities and our requirement to produce a hardened drill tip. In addition, these fasteners will be used in external environments where corrosion is an obvious concern. We would love to use 305 or 316, but we are not able to achieve the high hardness in the tip that will allow us to drill through steel. My question is, is there a stainless steel alloy that can be both hardened by heat treatment, and offers the corrosion protection of 316? Obviously cost is the most important issue, but I'm open to suggestions.
Thanks a lot,
Don





RE: 410SS vs. 316SS vs. Something else?
_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year
RE: 410SS vs. 316SS vs. Something else?
http://www.infastech.com/Products/By-Type/Threaded...
http://www.sfsintec.biz/internet/sfsinten.nsf/Page...
RE: 410SS vs. 316SS vs. Something else?
RE: 410SS vs. 316SS vs. Something else?
RE: 410SS vs. 316SS vs. Something else?
----------------------------------------
The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: 410SS vs. 316SS vs. Something else?
RE: 410SS vs. 316SS vs. Something else?
There is plenty of information that can be found on this subject.
RE: 410SS vs. 316SS vs. Something else?
There are no common martensitic grades that will come close to 316 in corrosion resistance.
You can almost get there with PH grades (15-7 or 13-8) but I am sure that they are way too expensive for you.
If you are roll forming these you might get hard enough cold working a lean duplex stainless (2101, 2202).
They have a lot better corrosion resistance than 410 or 304 and they are much stronger than a 3xx alloy.
But they will only harden by cold work.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: 410SS vs. 316SS vs. Something else?
RE: 410SS vs. 316SS vs. Something else?
RE: 410SS vs. 316SS vs. Something else?