Brush 1915 Leaded Copper Rod – TH04 (C19150) for Superior Strength & Machinability

Brush 1915 is a heat-treatable leaded copper alloy used in automatic screw machines and cold forming applications. With a machinability index of 70, Brush 1915 also provides high strength, good machinability, good conductivity, excellent surface finish, close diameter control, and microstructural consistency.

Properties

General

Property	Temperature	Value
Density	23.0 °C	8.88 g/cm³

Dimension

Property	Value	Comment
Diameter	0.76 - 15.8 mm
Length	3660 mm	max.

Mechanical

Property	Temperature	Value
Elongation	23.0 °C	4 - 30 %
Tensile strength	23.0 °C	480 - 720 MPa
Yield strength Rp0.2	23.0 °C	380 - 660 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	23.0 °C	1.77E-5 1/K
Thermal conductivity	23.0 °C	210 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	23.0 °C	2.90E+7 S/m
Specific Electrical conductivity		50 % IACS

Chemical properties

Property	Value
Copper	Balance
Lead	0.5 - 1 %
Nickel	0.8 - 1.2 %
Phosphorus	0.15 - 0.35 %

Technological properties

Property
Application areas	Brush 1915 is an ideal material for machined or formed electrical contacts, connector pins and sockets.
General machinability	The addition of lead in the Brush 1915 & Brush 1916 alloy composition allows for chip control in turning and drilling operations, making the alloy ideal for automatic machining. Brush 1915 & Brush 1916 machines readily at feeds and speeds used for other leaded copper alloys. High speed steel and carbide tools are recommended for all machining operations.

NM6 (CuNi12Zn37Mn6Pb2) – ASTM C79860: Premium Free‑Machining Nickel Silver for Machining & Cold Forming BRUSH® 1916 Wire TH04 (C19160) – Heat‑Treatable Leaded Copper Alloy for High‑Performance Screw Machine Applications

Metal