How well does A-36 Carbon Steel Hot Roll machine?

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How well does A-36 Carbon Steel Hot Roll machine? Louis Ohland 01-28-2008
Posted by Louis Ohland on January 28, 2008, 10:03 am
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 Looking for something to machine a compound clamp out of that turns
better than 1018.

Unfortunately, Metal Express doesn't have 12L14 in the width I'd like.

Posted by Louis Ohland on January 28, 2008, 10:16 am
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 ASTM A36 has a machinability rating of 72%, based on 1212 at 100%

Which means what for a 1HP lathe?

Louis Ohland wrote:
> Looking for something to machine a compound clamp out of that turns
> better than 1018.
>
> Unfortunately, Metal Express doesn't have 12L14 in the width I'd like.

Posted by spaco on January 28, 2008, 10:26 am
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I think you'll generally find A36 slightly worse than 1018. "They" say
that 1018 is usually a more homogenous material than A36 (junk cars)
because it is often used for cold rolling.
I'm a sorta blacksmith so I have a lot of A36 (in hot rolled
form)around here and I often grab some when I need to machine a part
that doesn't have to have a real pretty finish.

If you don't mind paying a little more, I use 1144 (or is it
1141)----"Stressproof" It is a medium carbon steel that we use here for
press tooling but it turns very nicely and is pretty tough stuff.
Turns to a mirror finish.

You probably already know this, but if you can find a welding shop or
fabrication shop anywhere around where you live, they will be able to
put you in contact with a steel supplier that will have leaded steel.
That same steel supplier may be able to tell you the names of
companies that they sell "free machining" steels to. You can then visit
them to see if you can beg or buy their "drops".

Pete Stanaitis
-----------------
Louis Ohland wrote:
> Looking for something to machine a compound clamp out of that turns
> better than 1018.
>
> Unfortunately, Metal Express doesn't have 12L14 in the width I'd like.

Posted by Louis Ohland on January 28, 2008, 10:24 am
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http://www.liebovichsteel.com/products/coldfnsh.html

Liebovich is farther into Rockford, but it's easier to get to from the
south. They have 12L14 up to 6" square. Or 1117.

Cold Finished Squares

* 1018
* 1117
* 1045
* 1213/1215
* 12L14

Size Range:
1/8" to 6"

spaco wrote:
>
> I think you'll generally find A36 slightly worse than 1018. "They" say
> that 1018 is usually a more homogenous material than A36 (junk cars)
> because it is often used for cold rolling.
> I'm a sorta blacksmith so I have a lot of A36 (in hot rolled
> form)around here and I often grab some when I need to machine a part
> that doesn't have to have a real pretty finish.
>
> If you don't mind paying a little more, I use 1144 (or is it
> 1141)----"Stressproof" It is a medium carbon steel that we use here for
> press tooling but it turns very nicely and is pretty tough stuff.
> Turns to a mirror finish.
>
> You probably already know this, but if you can find a welding shop or
> fabrication shop anywhere around where you live, they will be able to
> put you in contact with a steel supplier that will have leaded steel.
> That same steel supplier may be able to tell you the names of
> companies that they sell "free machining" steels to. You can then visit
> them to see if you can beg or buy their "drops".
>
> Pete Stanaitis
> -----------------
> Louis Ohland wrote:
>> Looking for something to machine a compound clamp out of that turns
>> better than 1018.
>>
>> Unfortunately, Metal Express doesn't have 12L14 in the width I'd like.

Posted by spaco on January 28, 2008, 2:20 pm
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Rockford Il, I preume. My home town. Lots of small machine shops, tool
and die shops, etc. Lots of Fab shops and welding shops, too. Every one
has stuff for dumpster diving.

Pete Stanaitis
-----------------------

Louis Ohland wrote:
> http://www.liebovichsteel.com/products/coldfnsh.html
>
> Liebovich is farther into Rockford, but it's easier to get to from the
> south. They have 12L14 up to 6" square. Or 1117.
>
> Cold Finished Squares
>
> * 1018
> * 1117
> * 1045
> * 1213/1215
> * 12L14
>
> Size Range:
> 1/8" to 6"
>
> spaco wrote:
>
>>
>> I think you'll generally find A36 slightly worse than 1018. "They"
>> say that 1018 is usually a more homogenous material than A36 (junk
>> cars) because it is often used for cold rolling.
>> I'm a sorta blacksmith so I have a lot of A36 (in hot rolled
>> form)around here and I often grab some when I need to machine a part
>> that doesn't have to have a real pretty finish.
>>
>> If you don't mind paying a little more, I use 1144 (or is it
>> 1141)----"Stressproof" It is a medium carbon steel that we use here
>> for press tooling but it turns very nicely and is pretty tough stuff.
>> Turns to a mirror finish.
>>
>> You probably already know this, but if you can find a welding shop or
>> fabrication shop anywhere around where you live, they will be able to
>> put you in contact with a steel supplier that will have leaded steel.
>> That same steel supplier may be able to tell you the names of
>> companies that they sell "free machining" steels to. You can then
>> visit them to see if you can beg or buy their "drops".
>>
>> Pete Stanaitis
>> -----------------
>> Louis Ohland wrote:
>>
>>> Looking for something to machine a compound clamp out of that
>>> turns better than 1018.
>>>
>>> Unfortunately, Metal Express doesn't have 12L14 in the width I'd like.

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