Grade of SS Used on KTM Exhaust Headers?

Tim507
Profile picture for user Tim507
Posts
3490
Joined
6/8/2010
Location
Oregon City, OR, USA
Tim507
Anyone in the know or know of someone who would know? I'm working on making some mods to a KTM Header.

Thanks

Tim
|
wideopen198 4/3/2018 9:55am
4/3/2018 9:55am
Probably just 304 or 316 as they're the most common.
Tryhard
Profile picture for user Tryhard
Posts
548
Joined
6/6/2017
Location
USA
Tryhard 4/3/2018 9:59am
4/3/2018 9:59am
when in doubt use a 309 wire on most all stainless .
Motocross Kid 4/3/2018 10:00am
4/3/2018 10:00am Edited Date/Time 4/3/2018 10:05am
Most likely 304. Just use 308/309 filler and you'll be safe. It most assuredly won't be a grade above that. You can use 316 but it's unnecessarily expensive. I've welded on a couple KTM pipes (and FMF and PC) using 316 with no problems. Also Weldmold 880 works really well if you can get it.
Tim507
Profile picture for user Tim507
Posts
3490
Joined
6/8/2010
Location
Oregon City, OR, USA
Tim507 4/3/2018 10:03am
4/3/2018 10:03am
Thanks - I take it the stock color of the KTM header pipe has nothing to do with the grade?


The Shop

See All »
Motocross Kid 4/3/2018 10:06am
4/3/2018 10:06am Edited Date/Time 4/3/2018 10:07am
Tim507 wrote:
Thanks - I take it the stock color of the KTM header pipe has nothing to do with the grade?


"Stock color" meaning a header with no heat put through it? They change color very soon after just a few heat cycles. Take a red scotch brite pad to it to get to the raw metal.
slowgti
Profile picture for user slowgti
Posts
1010
Joined
1/14/2016
Location
Monroe, GA, USA
slowgti 4/3/2018 10:16am
4/3/2018 10:16am
347 is the go to wire for unknown stainless around these parts

Post a reply to: Grade of SS Used on KTM Exhaust Headers?