An Introduction To The Properties Of Brass

1. H59 ordinary brass; the price is the lowest, the strength and hardness are high and the plasticity is poor, but it can still withstand pressure processing well in the hot state, the corrosion resistance is average, and other properties are similar to H62. For general machine parts, welding parts, hot stamping and hot rolling parts.

2. 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, it is inexpensive and is a common brass variety for habitual applications. Used for various deep drawing and bending manufacturing of gift parts, such as pins, rivets, washers, nuts, conduits, barometer springs, screens, radiator parts, etc.

3. H63 ordinary brass; suitable for cold pressure processing, suitable for welding and brazing. Easy to polish, it is the main alloy for drawing, rolling, bending and other forming. For screws, round rollers for pickling, etc.

4. H65 ordinary brass; the performance is between H68 and H62, the price is cheaper than H68, it also has higher strength and plasticity, can withstand cold and hot pressure processing well, and has a tendency to corrosion and cracking. For hardware, daily necessities, small springs, screws, rivets and mechanical parts.

5. H68 ordinary brass; has very good plasticity (the best among brass) and high strength, good cutting performance, easy to weld, not stable to general corrosion, but easy to crack. It is the most widely used variety in ordinary brass. For complex cold and deep drawn parts such as radiator housings, conduits, bellows, cartridge cases, gaskets, valves, etc.

6. H70 ordinary brass; has very good plasticity (the best among brass) and high strength, good cutting performance, easy to weld, not stable to general corrosion, but easy to crack. For complex cold and deep drawn parts such as radiator housings, conduits, bellows, cartridge cases, gaskets, valves, etc.

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7. 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.

8. 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.

9. H85 ordinary brass; has high strength, good plasticity, can well withstand cold and hot pressure processing, welding and corrosion resistance. For condensation and cooling pipes, siphons, serpentines, cooling equipment parts.

10. H90 ordinary brass; similar in performance to H96, but slightly higher in strength than H96, it can be plated with metal and extruded to apply enamel. For water and drain pipes, medallions, artwork, tank straps and bimetals.

11. H96 ordinary brass; higher strength than red copper (but in ordinary brass, she is the lowest), good thermal conductivity and electrical conductivity, high corrosion resistance in the atmosphere and but good plasticity, Easy to work with cold and hot pressure, easy to weld, forge and tin, no tendency to stress corrosion cracking. In general machinery manufacturing, it is used as conduit, condenser tube, radiator tube, heat sink, automobile water tank belt and conductive parts, etc.

12. HA159-3-2 aluminum brass; with high strength; the corrosion resistance is the best among all brasses, the corrosion cracking tendency is not large, the plasticity is low in the cold state, and the pressure workability in the hot state is good. Used in engine and marine industries and other high-strength corrosion-resistant parts working at normal temperature.

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13. HA160-0-1 aluminum brass; with high ground strength, good corrosion resistance in air, fresh water and sea water, but sensitive to corrosion cracking, good pressure workability in hot state, and low plasticity in cold state. Used for structural parts requiring corrosion resistance, such as gears, worm gears, bushings, shafts, etc.

14. HA166-6-3-2 aluminum brass; it is a wear-resistant alloy, with high strength, hardness and wear resistance, and good corrosion resistance, but it has the tendency of corrosion cracking and poor plasticity. Transplant varieties for cast brass. Nuts and large worms used for heavy-duty fixing screws under heavy loads; can be used as a substitute for aluminum bronze QA110-4-4.

15. HA167-2.5 aluminum brass; can withstand pressure processing well in cold and hot states, good wear resistance, acceptable corrosion resistance to seawater, sensitive to corrosion cracking, poor brazing and tin plating performance . For marine anti-corrosion parts.

16. HA170-1.5 aluminum brass; the performance is similar to HA177-2, but a small amount of arsenic is added, which improves the corrosion resistance to seawater, reduces the tendency of corrosion cracking, and can prevent the dezincification of brass in fresh water. Used as condenser pipes and other corrosion-resistant parts in ships and coastal thermal power stations.

17. HA177-2 aluminum brass; 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 for dezincification and corrosion cracking. Used as condenser pipes and other corrosion-resistant parts in ships and coastal thermal power stations.

18. HA177-2A aluminum brass; similar in performance and composition to HA177-2, due to the addition of a small amount of arsenic and antimony, the corrosion resistance to seawater is improved, and a small amount of beryllium is added to improve the mechanical properties. HA177-2.

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19. HA177-2B aluminum brass; similar in performance and composition to HA177-2, due to the addition of a small amount of arsenic and antimony, the corrosion resistance to seawater is improved, 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.

20. HFe58-1-1 iron brass; high strength, hardness, good machinability, but reduced plasticity, can only be processed under pressure under hot state, good corrosion resistance, prone to corrosion cracking. It is suitable for high-strength corrosion-resistant parts made by hot pressing and cutting methods.

21. HFe59-1-1 iron brass; has high strength, toughness, good anti-friction properties, high corrosion resistance in the atmosphere and sea water, but has a tendency to corrosion cracking, and has good plasticity in hot state. For making structural parts that work under friction and seawater corrosion.

22. HMn55-3-1 manganese brass; the performance is similar to that of HMn57-3-1, and it is a transplanted variety of cast brass. For corrosion resistant structural parts.

23. HMn57-3-1 manganese brass; high strength, hardness, low plasticity, can only be pressure processed in hot state; corrosion resistance in atmosphere, sea water, superheated steam is better than general brass, but there is corrosion Tendency to rupture. For corrosion resistant structural parts.

24. HMn58-2 manganese brass; high corrosion resistance in seawater, superheated steam and chloride, but prone to corrosion cracking; good mechanical properties, low thermal and electrical conductivity, easy to press in hot state, cold The pressure workability in the state is acceptable, and it is a widely used brass variety. Important parts for working under corrosive conditions and low current industrial parts.

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25. HNi65-5 nickel brass; high corrosion resistance and friction reduction, good mechanical properties, excellent pressure processing performance in cold and hot states, relatively stable to dezincification and "seasonal cracking", thermal conductivity Low conductivity. However, due to the high price of nickel, HNi65-5 is generally not used much. It is used for pressure gauge tubes, paper-making nets, condenser tubes for ships, etc. It can be used as a substitute for tin phosphor bronze and German silver.

26. HPb59-1 lead brass; it is a widely used lead brass, which 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 prone to corrosion cracking, suitable for various structural parts made by hot stamping and cutting, such as screws, washers, gaskets, bushings, nuts, nozzles, etc.

27. HPb59-1A lead brass; it is a widely used lead brass, which 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 prone to corrosion cracking, high impurity content, used for relatively minor parts. It is suitable for various structural parts made by hot stamping and cutting, such as screws, washers, gaskets, bushings, nuts, nozzles, etc.

28. HPb60-1 lead brass; good machinability and high strength, other properties are the same as HPb59-1. for structural parts.

29. HPb61-1 lead brass; good machinability and excellent hot workability. Mainly used as automatic cutting parts.

30. HPb63-3 lead brass; it is lead brass with high lead content. It cannot be processed in hot state. It has excellent cutting performance and high anti-friction performance. Other properties are similar to HPb59-1. Mainly used for clock structure parts, but also for automobile and tractor parts.

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31. HPb64-2 lead brass; it is lead brass with high lead content, cannot be processed in hot state, has excellent cutting performance, and has high anti-friction performance. Other properties are similar to HPb59-1. Mainly used for clock structure parts, but also for automobile and tractor parts.

32. HPb74-3 lead brass; it is lead brass with high lead content. Generally, it is not hot processed because of its tendency to be hot brittle. Has good machinability. For clocks, automobiles, tractor parts and general machine parts.

33. HSi65-1.5-3 silicon brass; high strength, good corrosion resistance, good pressure processing in cold and hot states, easy welding and brazing, good wear resistance and machinability, However, it has a tendency to corrode and crack. It is a substitute for wear-resistant tin bronze and is used for high-strength parts that work under corrosion and friction conditions.

34. HSi80-3 silicon brass; has good mechanical properties, high corrosion resistance, no tendency to corrosion cracking, wear resistance, good pressure workability in cold and hot states, easy welding and brazing, cutting good sex. Thermal conductivity is the lowest among brass. For marine parts, steam pipes and water pipe fittings, etc.

35. HSn60-1 tin brass; similar in performance to HSn62-1, the main product is wire. It is used as an electrode for welding structures of ships.

36. 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 to weld and braze, but have Tendency to corrosion cracking (seasonal cracking). Used for ship copper jackets or other parts in contact with seawater or gasoline.

37. HSn70-1 tin brass; 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 to corrosion cracking (seasonal cracking). It is used for corrosion-resistant parts (such as condenser pipes) on sea ships, pipes in contact with seawater, steam and oil, and parts of thermal equipment.

38. HSn90-1 tin brass; mechanical properties and process properties are very similar to H90 ordinary brass, but it has high corrosion resistance and friction reduction. At present, only this tin brass can be used as a wear-resistant alloy. Used for elastic casing of automobile tractor and other anti-corrosion and anti-friction parts.