CHEMICAL COMPOSTION: CARTRIDGE BRASS

CU	70%
ZN	30%

SAE ALLOY NO: CA260 MILITARY SPEC: MIL-C-50 ASTM ALLOY NO: B36 FEDERAL SPECS: QQB613
DENSITY (lbs. per cu. in at 68°F105,000 TO 125,000 (Annealed) (x 27.68 = gms/cu cm at 20°C)	308
MOD. OF ELAST. (x 10****** PSI, tension	16
ELECT. COND. (% IACS at 68°F (20°C) as annelaed.	28
THERM. COND (BTU per sq.ft. per ft. per hr. per F at 68°F (20°C)	70
COEFF.OF TH. EXPN. (INCHES/INCH/ F X 10(-******) FROM 68°F TO 572°F (20°C TO 300°C)	11.1

TENSILE STRENGH (X 1000 PSI (MPA + KSI X 6.8948))

ANNEALED	45 - 61
1/4 HARD	57 - 67
1/2 HARD	71 - 81
SPRING	91 - 100

YIELD STRENGH (X 1000 PSI (MPA + KSI X 6.8948))

ANNEALED	10 - 33
1/4 HARD	42 - 60
1/2 HARD	67 - 78
SPRING	82 - 91

ELONGATION (% in 2 inches (= % in 50 mm))

ANNEALED	40 - 67
1/4 HARD	19 - 42
1/2 HARD	6 - 14
SPRING	1 - 2

ROCKWELL B HARDNESS (.020 gauge and over (Rockwell F or 30T where noted))

ANNEALED	57 - 94 (F)
1/4 HARD	60 - 77
1/2 HARD	79 - 86
SPRING	89 - 93

* PLEASE NOTE THIS IS A NOMINAL DATA SHEET

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