Stainless steel 304

[firebird]

Hi

I have used the stainless steel 303 free cutting before with no problems. Is 304 a similar material??

Cheers

Rich

 

[maverick]

304 is a different beast, It's tough and stringy and needs sharp tools with a strong edge. Use lower cutting speeds
with enough feed to make a chip so the material doesn't work harden. Lots of oil helps too.

Good luck,
Mike

 

[Drei]

Which one is better for machining engine valves?

Drei

 

[Dave G]

I use type 303 SS for all my valves. I only use type 304 if the part will need to be welded, I keep very little of 304 around. The difference between the two types is like night and day. Dave

 

[firebird]

Hi

Thanks Drei and Dave.

Nothing to do with model engineering this, I have to make 22 cabinet door handles for our bedroom furniture, each will have to be drilled and tapped twice so it looks like 303 would be better.

cheers

Rich

 

[rake60]

There's a professional machinist's saying regarding the machinability differences of 303 verses 304 stainless.

"303, She's for ME, 304, She's a ....... "

Hummmm, now what was that word?

Rick

 

[Maryak]

I think the word you're looking for is Boar :

Or it's a pig to machine. :

Best Regards
Bob

 

[firebird]

Hi

I get the idea ;D ;D ;D

Cheers

Rich

 

[rake60]

I think the word you're looking for is Boar :

Best Regards
Bob

Thanks Bob!

That was the word I was looking for! LOL

Rick