China copper tubes company

After being hardened, its tensile strength and hardness increase, while plasticity decreases. The first is to improve the tensile strength and improve the technical code for 'H + the symbol of the main element (except zinc) + the mass fraction of copper + the mass fraction of the main element + the mass fraction of other elements'. Nickel content is generally 10%, 15%, 20%, the higher the content, the whiter the color. commonly used are Qsn43 Qsn6. A.is an alloy of copper and nickel. Cast brass. 2) Special bronzes join other elements to replace tin, or Wuxi bronzes.

The casting shape is messy. For example, Qal7 indicates that the aluminum content is 5%, and the other aluminum bronze ZQsn101 that is copper indicates that the tin content is 10%. It is suitable for castings with messy shapes but low density requirements, such as sliding bearings, gears, etc.

They are satisfied with various corrosion resistance and special electrical and thermal functions. Industrial copper-nickel alloys can be divided into structural copper-nickel alloys and electrical copper-nickel alloys according to their functional characteristics and application ranges. Most special bronzes have higher mechanical properties, wear resistance and corrosion resistance than tin bronzes. H68 and H59 belong to dual-phase brass, which are widely used in structural parts of electrical appliances, such as bolts, nuts, washers, tension springs, etc. For cast products, add the word 'Z' before the code. When the tin content is greater than 10%, it is suitable for casting.

Red copper is China copper tubes company with a high copper content, and the total content of other impurities is below 1%. In addition to brass and white copper, other copper alloys are collectively called bronze. Casting tin bronze is directly sold as ingots, and cast into castings by the foundry. Since a and are near the electrode potential, and the tin in the composition produces a fine tin dioxide film after nitriding, the corrosion resistance of the atmosphere and seawater is increased, but the acid resistance is only poor. Pure copper and nickel can significantly improve strength, corrosion resistance, electrical resistance and thermoelectricity

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