Copper Based Alloys do not exist within the DFARS requirements


DFARS (Defense Federal Acquisition Regulation Supplement)

How does this apply to bronze?

Excerpt from DFARS 252.225-7009

Q9. What is the definition of “Specialty Metals”?

A9. The definition of specialty metals is contained in DFARS 252.225-7008:

1. Steel

With a maximum alloy content exceeding one or more of the following limits: manganese, 1.65 percent; silicon, 0.60 percent; or copper, 0.60 percent; or containing more than 0.25 percent of any of the following elements: aluminum, chromium, cobalt, columbium, molybdenum, nickel, titanium, tungsten or vanadium

2. Metal Alloys Consisting of:

Nickel or iron-nickel alloys that contain a total of alloying metals other than nickel and iron in excess of 10 percent; or Cobalt alloys that contain a total of alloying metals other than cobalt and iron in excess of 10 percent

3. Titanium and titanium alloys

4. Zirconium and zirconium base alloys

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