Brass Round Rod
Brass Round Rod/Cadmium-less Brass Round Rod
There are also Cadminon CN series - cadmium-less brass round rods corresponding to "RoHS Directive" in 2006. This series has 4 types of material; free-cutting brass round rod, forging brass round rod, naval brass round rod and high strength brass round rod, and 2 types of cadmium content; 75ppm or 100ppm or less.
Brass Round Rod
Excellent workability. Applied for connectors, flanges, machine parts, and others. Brass round rods manufactured to pressure-resistant, cutting, and other applications are available.
・Forging Brass Round Rods
Outstanding hot forgeability renders forging brass round rods suitable for precision forging. Used for machine parts.
Material with superb hot forgeability and workability. Used for valves, machine parts, and others.
・Naval Brass Round Rods
Applicable JIS H3250 C4641BF-F※
Material with excellent corrosion resistance, particulary, seawater resistance. Used for marine parts, shafts, etc.
・High-tension Brass Round Rods
Material with high strength and with good hot forgeability and corrosion resistance. Used for marine propeller shafts, pump shafts, etc.
Example of Use
Cadmium-less Brass Round Rod
Since June in 2005, we have started the manufacturing and sales of Cadminon CN series - brass rods that clear the "RoHS Directive". For this series, eight types of brass rods are available in total now - two types of cadmium content (100ppm or less and 75ppm or less) for four respective existing products.
With a wide variety of sizes ranging from 50f to 450f or more, we provide free-cutting, forging, naval, and high strength brass rods corresponding to conventional products.
What is "RoHS Directive"?
※For brass rods, lead content shall be restricted to 4% (40,000ppm) or less for a while as a special case.
CN34-75 Cd content :
Excellent in machinability. Used in screws, gears, valves, and camera parts. Can be manufacured according to usages such as for pressure-resistance and machining.
・Cadminon CN series Forging Brass Bar
Excellent in hot forgeability and suitable for precision forging. Used in machine parts.
Excellent in hot forgeability and machinability. Used in valves and machine parts.
・Cadminon CN series Naval Brass Bar
CN40-75 Cd content : 75ppm or less
Excellent in anticorrosion and especially in sea water resistance. Used in ship parts and shafts.
・Cadminon CN series High Strength Brass Bar
CN60-75 Cd content : 75ppm or less
High strength and excellent in hot forgeability and corrosion resistance. Used in ship propeller shafts and pump shafts.
Gonda Metal performs the analysis before the mass production of cadmium-less brass rod; taking a small quantity out of the molten metal of combined raw materials and making a sample, then polishing its surface and analyzing a multi-element including cadmium with X-ray fluorescence spectrometer. Based on this analysis results, the cast billet which does not conform to the RoHS Directive is excluded from the mass production of cadmium-less brass rod.
Analysis of the cadmium content is carried out twice at Gonda Metal.
Atomic absorption analysis: Atomic absorption analysis is a method in which the liquid sample is atomized in a flame. The flame is, then, rayed by a light source to measure the absorption of light unique to respective metal with a detector through a spectrometer.