Common Grades, Properties And Uses Of Brass

1) H62 ordinary brass: has good mechanical properties, good plasticity in hot state, good plasticity in cold state, good machinability, easy brazing and welding, corrosion resistance, but prone to corrosion cracking. In addition, the price is cheap, and it is a common brass variety that uses habitual offenders. Used for various deep drawing and bending parts, such as pins, rivets, washers, nuts, conduits, barometer springs, screens, radiator parts, etc.

2) H65 Ordinary Brass: The performance is between H68 and H62, the price is cheaper than H68, and it also has higher strength and plasticity. For hardware, daily necessities, small springs, screws, rivets and mechanical parts.

3) H68 Ordinary Brass: It has extremely good plasticity (the best among brass) and high strength, good machining performance, easy to weld, not safe for general corrosion, but prone to cracking. It is the most commonly used variety in ordinary brass. It is used for complex cold-drawn and deep-drawn parts, such as radiator shells, conduits, bellows, shells, gaskets, detonators, etc.

4) H70 Ordinary Brass: It has extremely good plasticity (the best among brass) and high strength, good cutting performance, easy to weld, and is not safe for general corrosion, but is prone to cracking. For complex cold and deep drawn parts, such as radiator shells, conduits, bellows, cartridge cases, gaskets, detonators, etc.

5) H75 ordinary brass: has quite good mechanical properties, process properties and corrosion resistance. Works well in both hot and cold states. It is between H80 and H70 in terms of performance and economy. For low load corrosion resistant springs.

6) H80 ordinary brass: similar in performance to H85, but with higher strength, better plasticity, and higher corrosion resistance in the atmosphere, fresh water and seawater. For paper mesh, thin-walled pipes, corrugated pipes and building supplies.

7) H85 ordinary brass: It has high strength, good plasticity, can withstand cold and hot pressure processing well, and has good welding and corrosion resistance. For condensation and cooling pipes, siphons, coils, cooling equipment parts.

8) H90 ordinary brass: The performance is similar to that of H96, but the strength is slightly higher than that of H96. It can be plated with metal and extruded with enamel. For water and drain pipes, medallions, artwork, tank straps and bimetals.

9) H96 ordinary brass: higher strength than red copper (but in ordinary brass, she is the lowest), good thermal conductivity, electrical conductivity, high corrosion resistance in the atmosphere and but has good plasticity, easy to Cold and hot pressure processing, easy welding, forging and tinning, no stress corrosion cracking tendency. It is used as conduit, condenser tube, radiator tube, heat sink, automobile water tank belt and conductive parts in general mechanical production.

10) HA177-2 aluminum brass: It is a typical aluminum brass with high strength and hardness, good plasticity, can be pressure processed in hot and cold state, has good corrosion resistance to seawater and salt water, and is resistant to Impact corrosion, but there is a tendency to dezincification and corrosion rupture. Used as condenser pipes and other corrosion-resistant parts in ships and coastal thermal power stations.

11) HA177-2A aluminum brass: similar in performance and composition to HA177-2, the corrosion resistance to seawater is improved due to the addition of a small amount of arsenic and antimony, and the mechanical properties are also improved due to the addition of a small amount of beryllium, and the use is the same HA177-2.

12) HMn58-2 manganese brass: It has high corrosion resistance in seawater, superheated steam and chloride, but it has a tendency to crack and crack; it has good mechanical properties, low thermal conductivity and electrical conductivity, and it is easy to be pressed in a hot state. The pressure workability in the state is acceptable, and it is a widely used brass variety. Main parts and low current industrial parts for working under corrosive conditions.

13) HPb59-1 lead brass: It is the most commonly used lead brass. It is characterized by good machinability, good mechanical properties, can withstand cold and hot pressure processing, easy brazing and welding, and is resistant to general corrosion. Good stability, but there is a tendency to corrosion rupture, suitable for various structural parts manufactured by hot stamping and cutting, such as screws, washers, gaskets, bushings, nuts, nozzles, etc.

14) HSn62-1 tin brass: high corrosion resistance in seawater, good mechanical properties, cold brittleness during cold working, only suitable for hot pressing, good machinability, easy welding and brazing, but has Corruption Rupture (Season Rupture) bias. Used as marine parts or other parts in contact with seawater or gasoline.

15) HSn70-1 tin brass: It is a typical tin brass, with high corrosion resistance in the atmosphere, steam, oil and seawater, and has good mechanical properties, acceptable machinability, easy welding and brazing, It has good pressure workability under cold and hot conditions, and has a tendency of corrosion cracking (seasonal cracking). It is used for corrosion-resistant parts (such as condenser pipes) on sea-going ships, pipes in contact with seawater, steam and oil, and thermal equipment parts.