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This specification establishes the requirements for freecutting brass rod, bar, wire, and shapes of any specified cross section produced from Copper Alloy UNS Nos. C36000 or C36010 suitable for high-speed screw machining applications and moderate thread rolling.Units—Values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
| Element | Composition, % | |
|---|---|---|
| Copper Alloy UNS No. | ||
| C36000 | C36010 | |
| Copper | 60.0 – 63.0 | 60.0 – 63.0 |
| Lead | 2.5 – 3.0 | 3.1 – 3.7 |
| Iron, max | 0.35 | 0.35 |
| Zinc | Remainder | Remainder |
| Temper Designation Standard Name | Diameter or Distance Between Parallel Surfaces, in. | Tensile Strength, min, ksi | Yield Strength at 0.5 % Extension under Load, min, ksi | Elongation,A min, % | ||
|---|---|---|---|---|---|---|
| Rod and Wire | ||||||
| 060 | soft anneal | 1and l.lnder | 48 | 20 | 15 | |
| over 1 to 2, incl. | 44 | 18 | 20 | |||
| over 2 | 40 | 15 | 25 | |||
| H02 | half-hard | 12/ and under | 57 | 25 | 7B | |
| over ‘h to 1,incl. | 55C | 25 | 10 | |||
| over 1 to 2, incl. | so | 20 | 15 | |||
| over 2 to 4, incl.,and | 45 | 15 | 20 | |||
| over 4 | 40 | 15 | 20 | |||
| H04 | hard | 1/10 to 3/is incl. | 80 | 45 | ||
| over o/i• to 1hincl. | 70 | 35 | 4 | |||
| over 1h to :V. incl. | 65 | 30 | 6 | |||
| Bar | ||||||
| Standard Name | Thickness, in. | Width, in. | ||||
| 060 | soft anneal | 1 and under | 6 and under | 44 | 18 | 20 |
| over 1 | 6 and under | 40 | 15 | 25 | ||
| H02 | half-hard | 1/2 and under | 1 and under | 50 | 25 | 10 |
| 1/2 and under | over 1 to 6, incl. | 45 | 17 | 15 | ||
| over 1/2 to 2, incl. | 2 and under | 45 | 17 | 15 | ||
| over 1/2 to 2,incl. | over 2 to 6, incl. | 40 | 15 | 20 | ||
| over 2 | over 2 to 4, incl. | 40 | 15 | 20 | ||
Note :
A. In any case, a minimum gage length of 1 in. shall be used.
B. For product furnished in coils the elongation shall be 4 % min.
C. If product is specified for thread rolling applications, the minimum tensile strength shall be 52 ksi.
| Temper Designation Standard Name | Diameter or Distance Between Parallel Surfaces, in. | Tensile Strength, min, ksi | Yield Strength at 0.5 % Extension under Load, min, ksi | Elongation,A min, % | |||
|---|---|---|---|---|---|---|---|
| Rod and Wire | |||||||
| 060 | soft anneal | 25 and under | 330 | 140 | is | ||
| over 25 to 50,incl. | 305 | 125 | 20 | ||||
| over 50 | 275 | 105 | 25 | ||||
| H02 | half -hard | 12 and under | 395 | 170 | 78 | ||
| over 12 to 25,incl. | 380c | 170 | 10 | ||||
| over 25 to 50,incl. | 345 | 140 | 15 | ||||
| over 50 to 100, incl.,and | 310 | 105 | 20 | ||||
| over 100 | 275 | 105 | 20 | ||||
| H04 | hard | 1.6 to 4,incl. | 550 | 310 | |||
| over 4 to 12,incl. | 480 | 240 | 4 | ||||
| over 12 to 18,incl. | 450 | 205 | 6 | ||||
| Bar | |||||||
| Standard Name | Thickness, in. | Width, in. | |||||
| 060 | soft anneal | 25 and under | 150 and under | 305 | 125 | 20 | |
| over 25 | 150 and under | 275 | 105 | 25 | |||
| H02 | half-hard | 12 and under | 25 and under | 345 | 170 | 10 | |
| 12 and under | over 25 to 150,incl. | 310 | 115 | 15 | |||
| over 12 to 50,incl. | 50 and under | 310 | 115 | 15 | |||
| over 12 to 50,incl. | over 50 to 150,incl. | 275 | 105 | 20 | |||
| over 50 | over 50 to 100,incl. | 275 | 105 | 20 | |||
Note :
A. In any case, a minimum gage length of 25 mm shall be used. SI elongation values are based on a gage length of 5.65 times the square root of the area for dimensions
greater than 2.5 mm.
B. For product furnished in coils the elongation shall be 4 % min.
C. If product is specified for thread rolling applications, the minimum tensile strength shall be 350 MPa.