Planning on doing my first manifold, and im using mild steel. But I noticed on McMaster that the mild steel elbows are more expensive than the stainless. Sch 40.

Here are part numbers

Stainless - 45605K515 which is 6.79

Steel - 43425K151 which is 9.36

Let me know if im looking in the wrong places or what. Thanks for the help

 

No you're not looking in the wrong place. Kind of weird on the prices though. Go with stainless if I were you.

 

The stainless pipe comes from china and the mild stuff comes from here. That's the price difference.

 

if you do stainless, sch10 is all you will need and its cheaper, lighter and better thermally

 

Go stainless. Then buy from mbpwrx (Ace stainless), he sells the 1.5" sch10 for much less than McMaster-Carr. You will also find that the 1.25" sch10 is more expensive than the 1.5". That's just a supply/demand thing.

 

well, i have to go mild steel. thats all im set up for with my welder.

 

Just buy some stainless wire. What kind of gas do you have?

 

Curious: What do you mean by better thermally?

 

I just picked all my SS schedule 40 from McMaster. It may be more expensive but their customer service can't be beat. UPS destroyed my box and lost all the pipes. McMaster sent me another set without question.

 

just so you know... that stuff is considered piping and not tubing... tubing is measured by OD and piping is measured by ID.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">Just buy some stainless wire. What kind of gas do you have?</TD></TR></TABLE>

im using a 75/25 mix

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigTom &raquo;</TD></TR><TR><TD CLASS="quote">just so you know... that stuff is considered piping and not tubing... tubing is measured by OD and piping is measured by ID.</TD></TR></TABLE>
ok thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stinker504 &raquo;</TD></TR><TR><TD CLASS="quote">I just picked all my SS schedule 40 from McMaster. It may be more expensive but their customer service can't be beat. UPS destroyed my box and lost all the pipes. McMaster sent me another set without question.</TD></TR></TABLE>

McMaster does have good customer service but we consider ourselves to be top notch! If you have any questions feel free to contact me at anytime.

PS: Our new website (e-commerce based) should be up in the next few weeks. Keep your eye out for new specials and prices for h-t, fab-forum, and homemade turbo members.

 

for ace stainless

 

ace stainless

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigTom &raquo;</TD></TR><TR><TD CLASS="quote">just so you know... that stuff is considered piping and not tubing... tubing is measured by OD and piping is measured by ID.</TD></TR></TABLE>

are ya sure about that? if pipe is measured by id then why is there a difference in flow between the same size pipe between sch 10 and sch 40? i thought the difference was that pipe was cast and tubing is cold rolled

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integrawhat &raquo;</TD></TR><TR><TD CLASS="quote">are ya sure about that? if pipe is measured by id then why is there a difference in flow between the same size pipe between sch 10 and sch 40? i thought the difference was that pipe was cast and tubing is cold rolled</TD></TR></TABLE>

Pipe size is measure on a "theoretical ID". Pipe and tube can either be "welded" (rolled and welded) or "seamless" (hot or cold drawn).

There are a few major difference between pipe and tube. The way they are measure, called out, uses, and the available types of fittings for each. There are ton more things that I could list but I'm not going to at this time.

EDIT: Thanks for the kind words guys!