C36000 Free-Cutting Brass (CuZn36Pb3)
Download PDF
MA36B is the US reference standard for free-cutting brass with machinability rating of 100, moderate strength, and good resistance to corrosion. The alloy is used in the widest range of applications where excellent machining performance is the key selection criteria, including all types of special machined or micro-machined components with or without electrical requirement.
Mechanical Properties
Round Rod
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | MILL LIMITS |
| min, ksi (MPa) | min, ksi (MPa) @ 0.5% EUL |
min, % | |||
| soft anneal | 060 | 48 (330) | 20 (140) | 15 | 0.0394-.3150" (1 - 8mm) |
| half-hard | H02 | 57 (395) | 25 (170) | 7 | |
| hard | H04 | 80 (550) | 45 (310) | - | 0.0625 - 0.1875", incl. (1.6 - 4 mm,incl.) |
| 70 (480) | 35 (240) | 4 | over 0.1875 - 0.3150" (over 4 - 8 mm) |
Round Wire
soft anneal06048 (330)20 (140)150.0100 - 0.2362"
(.25-6mm)
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | MILL LIMITS |
| min, ksi (MPa) | min, ksi (MPa) @ 0.5% EUL |
min, % | |||
| half-hard | H02 | 57 (395) | 25 (170) | 4 | |
| hard | H04 | 80 (550) | 45 (310) | - | 0.0625 - 0.1875", incl. (1.6-4mm,incl.) |
| 70 (480) | 35 (240) | 4 | over 0.1875 - 0.3150" (over 4-8mm) |
Physical Properties
| Melting Point (Liquidus) | 1650°F | 900°C |
| Melting Point (Solidus) | 1630°F | 890°C |
| Annealing Range (min - max) | 800 - 1100 °F | 425 - 595 °C |
| Density | 0.307 lb/cu in | 8.50 gm/cu cm |
| Electrical Resistivity (Annealed) | 39.9 Ω·cir-mil/ft @ 68 °F | 6.62 µΩ·cm @ 20 °C |
| Electrical Conductivity (Annealed) | 26% IACS @ 68°F | 0.151 MS/cm @ 20°C |
| Thermal Conductivity | 67 Btu/sq ft/ft·hr/°F @ 68 °F | 116 W/m·K @ 20 °C |
| Coefficient of Thermal Expansion | 0.0000114°F (68-572°F) | 0.0000206°C (20-300°C) |
| Modulus of Elasticity (Tension) | 14,000 ksi | 96,500 MPa |
| Modulus of Rigidity | 5,300 ksi | 36,500 MPa |