Low-Leaded Brass Tube - CDA 330

Element

Composition (%)

Copper

65.0 - 68.0

Lead

0.20 - 0.7

Iron

0.07 max

Zinc

Rem.

Property

Value

Melting Point (Liquidus)

1720°F (938°C)

Cold Working Capacity

Excellent

Hot Forming Capacity

Poor

Hot Forgeability Rating

n/a

Hot Working Temperature

n/a

Annealing Temperature

800 - 1200°F (425 - 650°C)

Machinability Rating

60 (Free Cutting Brass = 100)

Temper

Tensile Strength

Yield Strength

Elongation in 2 in.

Rockwell Hardness (F)

Rockwell Hardness (B)

Rockwell Hardness (30T)

.050 mm

47.0 ksi

15.0 ksi

60%

64

---

26

.025 mm

52.0 ksi

20.0 ksi

50%

75

---

37

Hard Drawn

75.0 ksi

60.0 ksi

7%

---

80

69

Property

Value

Melting Point (Liquidus)

1720°F (938°C)

Annealing Temperature

800 - 1200°F (425 - 650°C)

Thermal Conductivity

70 Btu/sq ft/ft hr/°F at 68°F (121.2 W/m at 20°C)

Coefficient of Thermal Expansion (68-572°F)

11.1 × 10⁻⁶ per °F (19.2 × 10⁻⁶ per °C)

Specific Heat Capacity

0.09 Btu/lb/°F at 68°F (377.1 J/kg at 20°C)

Property

Characteristic

Cold Working

Excellent

Hot Forming

Poor

Machinability

Good (Rating: 60)

Soldering

Good

Brazing

Good

Welding

Difficult

Polishing

Excellent

Plating

Good

Annealing

Suitable (800 - 1200°F)