BDMS (BMS)란? 대체소재 equivalent material

Bright Drawn Mild Steel (BDMS) or more normally BMS is used extensively in the UK, and some other former affiliated countries.

Bright steel bars are carbon steel which has had the surface condition improved over the hot rolled finish supplied by the steel mill. Advantages achieved include improved machinability, enhancement of physical and mechanical properties and improved dimensional tolerances and straightness.

It is a staple of the model engineering community in many countries but does not appear to be available through the suppliers who deal with small shops in the US. Is there in fact an equivalent or can anyone suggest an alternative.

 

the equivalent in North America is C1018, cold finished (cold rolled) bar.

It is just low carbon steel, not an alloy steel, drill rod is very different.

Tolerances on cold finished bar are something like +0.0005" -0.001" or something like that.

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BDMS = Bright Drawn Mild Steel. In old parlance this was called EN1A, a low carbon steel.

BDMS bar stock when machined will probably warp, especially if machined more on one side than the other, as the drawing stresses are released.

BDMS can be normalised to release the stresses before machining by heating to red heat and allowing to cool slowly. Once normalised, it can be machined without any problems.

 

 

BDMS (BMS) equivalent in US? (cnczone.com)

BDMS (BMS) equivalent in US?

What is B.D.M.S. - The Home Machinist! (chaski.org)

What is B.D.M.S. - The Home Machinist!