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Machineability of steels
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Mark Rand
Posts: n/a
On 23 Aug 2005 16:01:34 -0400,
(DoN. Nichols) wrote:
In article ,
Nick Müller wrote:
Grant Erwin wrote:
in the US we call BMS "drill rod" and it actually makes quite a difference
what kind of drill rod I turn. To get a good finish, I mean.
I thought that "drill rod" is what the British call "silver steel",
and BMS is what you call CRS.
That is correct. Drill rod is *not* a mild steel by any stretch
of the imagination.
Probably the nicest machining steel is what is labeled 12L14
here in the US -- a lead alloy to improve free cutting, and low enough
carbon so it is not particularly tough (or hardenable) anyway. What it
is *not* good for is weldability, from what I understand.
What I *don't* remember is what the UK calls hot rolled steel.
(Could they call it the same as the US?)
Enjoy
DoN.
Chiming in a bit late...
We call CRS BMS==Bright Mild Steel.
We call HRS BMS==Black Mild Steel.
It's simple and it avoids confusion BG
regards
Mark Rand
RTFM
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