Steam Homo Drawing for corrosion?

[RUSO]

I have an ancient part in our system that needs to be produced.
On the dwg, it says, "Steam Homo Draw at 650F, dip in oil".
The material is 1144 steel.

My limited Google search says this process to be
some sort of proprietary process for corrosion protection...like passivation?

Anyway..what exactly is this process?
None of my 2 heat treaters know what this is....or have heard of it.

Is there an equivalent process...black oxide maybe?

Thanks in advance.

 

[metengr]

Draw or drawing steel usually means to temper after quenching in heat treatment terminology. This could mean temper at 650 deg F, just a guess.

 

[EdStainless]

A steam temper will give a black oxide finish, then you soak in oil to saturate it for corrosion protection.
Sort of blueing.

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P.E. Metallurgy, Plymouth Tube