Brass is an alloy of copper and zinc containing up to 40% zinc. It can include other metals such as lead, aluminum, tin, manganese, iron, chromium and silicon. Melting point: less than 1000 ° C (depending on the grade).
Brass has a orange-yellow color, with smaller zinc contents approaching the natural color of copper. This alloy is resistant to corrosion and is malleable; density: 8.4-8.7 g/cc.
Two-component brass M63; CuZn37, is a grade most commonly used in the electrical industry and in the production of components made by various forming methods, including deep drawing. Copper-zinc alloy (copper content of 62-65%) has a good conductivity with good mechanical properties; is well susceptible to cold forming.
Available hardening states: r (EN R300) – soft, z4 (EN R350) – semi-hard, z6 (EN R410) – hard and z8 (EN R550).
Leaded brass MO58 / CuZn40Pb2; MO58 / CuZn39Pb3; MO59 / CuZn39Pb2 is a brass grade used for components made by various machining methods – MO58 grade has particular application in free-cutting machines (free-cutting alloy). Due to the addition of lead it is very well subjected to machining and has a greater resistance to attack by external mechanical factors. The CW617 N alloy is typical for brass hot forging. MO58-59 alloys have limited susceptibility to cold forming.
Available hardening states: z4 (EN R430) – semi-hard, z6 – hard (EN R500); pp (EN M).
CuZn40Pb2 – CW617 N
CuZn39Pb3 – CW614 N
CuZn39Pb2 – CW612 N