Full Transcript:

What’s up guys? Michael back with Michael Talks Metal for the 132nd video in our current series.  Today we continue with copper alloys and have another of the more common brasses…… 464 Naval Brass ….. UNS designation C46400.

As you recall from our last video, the brasses are alloys consisting primarily of copper and zinc. Naval brass also contains a small amount of tin.  It is less machinable than the  high added lead 360 brass but improved corrosion performance.

It can be strengthened by cold work and is still readily fabricated by all the common methods.  It is readily joined by soldering and brazing.

Common applications include naval hardware and equipment or applications where the lead content of 360 brass is harmful. 464 brass also has better corrosion resistance than 360 brass.

For aerospace applications, Naval brass specifications include temper required.

Chemical Composition – UNS C46400 – AMS 4611 & AMS 4612
Copper59.0 – 62.0%
Tin0.50 – 1.0 %
Lead0.20 % Max
Iron0.10 % Max

Mechanical Properties for a 1″ round bar:

AMS 4611 –  Half Hard H02 Temper

27.0 KSI  minimum Yield Strength

60.0 KSI  minimum Tensile Strength

25 % minimum Elongation

AMS 4612 –  Hard  H04 Temper

37.0 KSI minimum Yield Strength

62.0 KSI minimum Tensile Strength

18 % minimum Elongation

In addition to these AMS standards for aerospace applications ASTM B21 applies for commercial applications for bar.

For the 132nd time, we remind you that specifications and other part requirements can alter what we have shown you today…So  CHECK THE SPECS!!!!!! This is Michael with Michael Talks Metal. Thank you for watching. Michlin Metals is a full service value added supplier and distributor of all things copper, brass and red metals. Check the website www.michlinmetals.com for more info. Still here and haven’t subscribed, click here. Missed last weeks’ video?? Click here. Thanks for watching, this is Michael with Michael Talks Metal, I will see you next Thursday, same time, same place. 10am on YT! I’m out!