Brass grade, classification and use?

1) H62 ordinary brass: has good mechanical properties, good plasticity in hot state, plasticity can also be cold state, good machinability, easy to brazing and welding, corrosion resistance, but easy to produce corrosion crack. In addition, the price is cheap and is applied to a common brass variety of recidivism. Used for all kinds of deep drawing and bending parts, such as pins, rivets, washers, nuts, guides, barometer springs, screens, radiator parts, etc.

2) H65 ordinary brass: performance between H68 and H62, cheaper than H68, but also has higher strength and plasticity, can withstand cold and hot pressure processing, corrosion and rupture tendency. Used for hardware, daily necessities, small springs, screws, rivets and mechanical parts.

3) H68 ordinary brass: has very good plasticity (is the best in brass) and high strength, good cutting performance, easy to weld, on the general corrosion of non stability, but easy to produce cracking. It is the most widely used variety of common brass. Used for complex cold and deep drawing parts, such as radiator housing, conduit, bellows, cartridge case, gasket, detonator, etc.

4) H70 ordinary brass: has very good plasticity (is the best in brass) and high strength, good cutting performance, easy to weld, on the general corrosion of non stability, but easy to produce cracking. Used for complex cold and deep drawing parts, such as radiator housing, conduit, bellows, cartridge case, gasket, detonator, etc.

5) H75 common brass: it has good mechanical properties, process properties and corrosion resistance. It works well under pressure in hot and cold states. It is between H80 and H70 in performance and economy. Used for low load corrosion resistant springs.

6) H80 ordinary brass: similar to H85 in performance, but with higher strength and better plasticity, it has higher corrosion resistance in atmosphere, fresh water and sea water. Used for papermaking net, thin wall pipe, corrugated pipe and house building supplies.

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

8) H90 ordinary brass: performance and H96 similar, but slightly higher strength than H96, can be gold-plated extrusion way to apply enamel. For water supply and drainage pipes, MEDALS, works of art, water tank belts and bimetallic plates.

9) H96 ordinary brass: high strength than red copper (but in ordinary brass, she is the lowest), good thermal and electrical conductivity, in the atmosphere and but has high corrosion resistance, and has good plasticity, easy to cold and hot pressure processing, easy to welding, forging and tin plating, no stress corrosion cracking tendency. In general machinery manufacturing used as conduits, condensing tubes, radiator tubes, radiators, car water tank belt and conductive parts.

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

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

12) HMN58-2 Manganese brass: it has high corrosion resistance in seawater, superheated steam and chloride, but has a tendency of corrosion and rupture; Good mechanical properties, low thermal conductivity, easy to pressure processing under hot state, cold state pressure processing is acceptable, is widely used brass varieties. Important parts and low-current industrial parts for corrosive operation.

13) HPB59-1 lead brass: Leaded brass is applied more widely, it is characteristic of good machinability, has the good mechanical properties, can withstand the cold and hot pressure processing, easy brazing and welding, the general corrosion has good stability, but have a tendency to corrosion cracking, suitable for hot stamping and machining of various structure parts, such as bolts, washers, gaskets, bushing, nut, nozzle, etc.

14) HSN62-1 tin brass: high corrosion resistance in seawater, has good mechanical properties, cold brittleness in cold processing, only suitable for hot pressing, good machinability, easy to weld and braze, but has a tendency of corrosion cracking (seasonal cracking). Parts of ships or other parts in contact with seawater or gasoline.

15) HSN70-1 tin brass: is a typical tin brass, in the atmosphere, steam, oil and sea water oil high corrosion resistance, and has good mechanical properties, machinability is acceptable, easy to weld and brazing, in cold and hot state of good pressure processing, corrosion cracking (seasonal crack) tendency. Used for corrosion-resistant parts (such as condensing pipe), conduits in contact with sea water, steam and oil, thermal equipment parts.

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