info. for manifold material
10-09-2003, 01:55 PM
#1
3.0 BAR
Thread Starter
Join Date: Apr 2003
Posts: 11,058
info. for manifold material
well i'm going to start "trying" to weld some manifolds. if anyone knows what type of butt weld fittings i will need, it would be greatly appreciated! i know that i'll need 1.5in butt weld fittings, if anyone knows what guage and grade and all that ----. by the way you know hmt members are going to get the special discount 
it just might take a little time before they start looking nice, but this is hmt, so who care what they look like.
it just might take a little time before they start looking nice, but this is hmt, so who care what they look like.
10-10-2003, 01:54 AM
#3
3.0 BAR
Join Date: Dec 2002
Posts: 2,101
Re:info. for manifold material
I buy all my 90's from mccastercar and all my straight material from our local steel co. flanges are best to buy in group buys were ever you can. if you plan on making these to sell i would jump on any group buy you can and buy like ten flanges at a time.
Beau
Beau
10-10-2003, 06:17 AM
#4
3.0 BAR
Thread Starter
Join Date: Apr 2003
Posts: 11,058
Re:info. for manifold material
yeah, i'll prolly be getting my flanges from typert, i'm just gonna buy a few at first to get the hang of it. hopefully it won't take too long before i'm making some quality, good looking manifolds. if anyone has any advice on making the manifolds, please feel free to share.
10-10-2003, 12:16 PM
#5
3.0 BAR
Thread Starter
Join Date: Apr 2003
Posts: 11,058
Re:info. for manifold material
alright, so i've been reading up, i read that ss 304 (schedule 40) is really tought to mig weld, is this true? if so, i heard that schedule 20 i a lot easier to mig weld, but is it strong enough for a turbo manifold? could anyone with some manifold welding experience email or im me (i might not get back with you until monday, i'll be out of town this weekend)
10-10-2003, 09:37 PM
#7
1.0 BAR
Join Date: Jan 2003
Posts: 403
Re:info. for manifold material
Originally Posted by projekteg
alright, so i've been reading up, i read that ss 304 (schedule 40) is really tought to mig weld, is this true? if so, i heard that schedule 20 i a lot easier to mig weld, but is it strong enough for a turbo manifold? could anyone with some manifold welding experience email or im me (i might not get back with you until monday, i'll be out of town this weekend)
If you want to save a little on shipping i could probably get everything for you a one time -when you get the flanges.
The best price in town here for Schedule 40 fittings is around $8.00 for the Tee's and $4.00 for the 90's - I usualy buy them in bulk and save 10-20%. ut i have to buy at least 50 of each.
10-11-2003, 10:25 PM
#8
0.5 BAR
Join Date: May 2003
Posts: 152
Re:info. for manifold material
try your local plumbing supply first, it costs way less than mcmaster. $4 for Tees, $1.75 for elbows, that's for schedule 40 butt weld steel, not SS.
Personally I wouldn't bother with SS unless you are using a complete SS setup, all flanges etc. because the expansion properties of SS are way different from mild steel. You might as well use all schedule 40 mild steel, it will probably hold up better than a mixed steel manifold. Mild steel is much easier to work with, and your welds with a mig will be much easier and nicer looking. You need a good mig welder to do a good job with thick SS.
I would be very suprised if mild steel would ever fail, the 1.5" sched 40 have 1/4" wall thickness, if you want to get the extra mile out of it, get it stress relieved, the flange machined and then ceramic coated.
http://www.sdsefi.com/techheader.htm
good luck
Neil
Personally I wouldn't bother with SS unless you are using a complete SS setup, all flanges etc. because the expansion properties of SS are way different from mild steel. You might as well use all schedule 40 mild steel, it will probably hold up better than a mixed steel manifold. Mild steel is much easier to work with, and your welds with a mig will be much easier and nicer looking. You need a good mig welder to do a good job with thick SS.
I would be very suprised if mild steel would ever fail, the 1.5" sched 40 have 1/4" wall thickness, if you want to get the extra mile out of it, get it stress relieved, the flange machined and then ceramic coated.
http://www.sdsefi.com/techheader.htm
good luck
Neil
10-12-2003, 06:12 PM
#9
0.0 BAR
Join Date: Jun 2003
Posts: 0
Re:info. for manifold material
go to a metal scrapyard for the materials if you want stuff dirt cheap. Thats where I got all my metal for my manifolds. Its alot cheaper to make your own flanges but it takes time unless you got a plasma cutter than its cake.
10-13-2003, 09:32 AM
#10
0.5 BAR
Join Date: Jan 2003
Posts: 115
Re:info. for manifold material
Originally Posted by neil85ae86
try your local plumbing supply first, it costs way less than mcmaster. $4 for Tees, $1.75 for elbows, that's for schedule 40 butt weld steel, not SS.
Personally I wouldn't bother with SS unless you are using a complete SS setup, all flanges etc. because the expansion properties of SS are way different from mild steel. You might as well use all schedule 40 mild steel, it will probably hold up better than a mixed steel manifold. Mild steel is much easier to work with, and your welds with a mig will be much easier and nicer looking. You need a good mig welder to do a good job with thick SS.
I would be very suprised if mild steel would ever fail, the 1.5" sched 40 have 1/4" wall thickness, if you want to get the extra mile out of it, get it stress relieved, the flange machined and then ceramic coated.
http://www.sdsefi.com/techheader.htm
good luck
Neil
Personally I wouldn't bother with SS unless you are using a complete SS setup, all flanges etc. because the expansion properties of SS are way different from mild steel. You might as well use all schedule 40 mild steel, it will probably hold up better than a mixed steel manifold. Mild steel is much easier to work with, and your welds with a mig will be much easier and nicer looking. You need a good mig welder to do a good job with thick SS.
I would be very suprised if mild steel would ever fail, the 1.5" sched 40 have 1/4" wall thickness, if you want to get the extra mile out of it, get it stress relieved, the flange machined and then ceramic coated.
http://www.sdsefi.com/techheader.htm
good luck
Neil
