cast brass

[yella hammer]

not for a bullet but I thought someone here might know


What is the approximate melting point of brass

[yella hammer]

found it m'ownsef
Now I know I'm shooting the right caliber(look at the density lbs per cu. in.) :-D  :-D

From Precision Steel Warehouse, Inc.

Physical Properties Brass 70/30
Density lbs. per cu. in. .308   (thats interesting!)
Melting point 1680°F.
Youngs Modulus of Elasticity (tension)  16,000,000,000
Electrical Conductivity* 28.0
Thermal Conductivity** 70

Mechanical Properties Brass 70/30
Tensile Strength P.S.I. - Hard and Aged N/A
Tensile Strength P.S.I. - Spring Temper 96,000
Fatigue Strength P.S.I. - Hard and Aged N/A
Fatigue Strength P.S.I. - Spring Temper 27,000
* Percentage of I.A.C.S. (International Annealed Copper Standard Est. 1913)
** Btu per sq. ft. per ft. per hr. per °F., 68°F.[/b]

[Cat Whisperer]

Yella Hammer - Have you ever looked into the variety of mixes of brass and bronze?  If I'm right the ratio given 70/30 is zinc/copper where bronze has tin and copper.  There are quite a few different alloying materials as well.  

I've had some cannon balls poured from zinc - which is about the same density as cast iron & therefore about the same ballistically.

So, whatchya gonna make?

[yella hammer]

just thinkin of stuff I could do with scrap brass (berdan, rimfire, etc)

Maybe I'll cast me one of those little brass hammers for delicate steel encouragement :wink:

[JBMauser]

Let me know how you do with those hammers.  My son-in-law wants to get into Garden Railroad as a hobby, I thought we could cast up our own wheels with scrap brass.  At least it sounds like a plan.  JB