C94300, a high-leaded tin bronze (also known as 70-5-25 or "soft bronze"), is a copper-based alloy primarily composed of 69–73% Cu, 4.7–5.8% Sn, and 22–24.5% Pb, with trace amounts of Zn, Fe, Sb, Ni, and other elements . This alloy combines excellent wear resistance, corrosion resistance, and high-temperature stability, making it ideal for applications requiring durability under light loads and high speeds. Key mechanical properties include a tensile strength of 185 MPa, yield strength of 90 MPa, and hardness of 48 HB . Its 9% IACS electrical conductivity and 62.7 W/m·K thermal conductivity further suit it for environments where heat dissipation and moderate electrical performance are critical