What is Tin Bronze ZQSn 6 6 3?

ZQSN6-6-3 is tin bronze.

Executive standard: GB T 1176-1974

ZQSN6-6-3 Chemical Composition: SN: 5 7%, ZN: 5 7%, PB: 2 4%, Copper: Margin.

ZQSN6-6-3 has high strength, good sliding friction resistance, excellent cutting performance and good welding performance, and has good corrosion resistance in atmosphere and fresh water. It is mainly used in the manufacture of friction-bearing parts in the aerospace, automotive and other industrial sectors, such as cylinder piston pin bushings, bearings and bushings linings, auxiliary connecting rod bushings, discs and washers.

The first 6 stands for: sn:

The second 6 represents: zn:

3 stands for: pb:

The specific composition is as follows:

1. Grade: tin bronze.

Two: Chemical composition: sn:

zn：≤ ni：≤ fe：

pb: al: impurities:

cu: margin three: mechanical properties:

Tensile strength ( b mpa): 315 Elongation (δ10 %): 40 Note:

Specimen size of the strip: thickness

Four: characteristics and scope of application: phosphine and tin bronze, with high strength. Elasticity. Abrasion resistance and anti-magnetism, good pressure workability in hot and cold states, high flame resistance to electric sparks, weldable and fiber welding, good machinability, corrosion resistance in atmosphere and fresh water.

Five: main use: mainly used as wear-resistant parts and elastic elements.

Computer connectors, mobile phone connectors, high-tech industry connectors, electronic and electrical springs, switches, electronic product slots, buttons, electrical connectors, lead frames, vibrating sheets and terminals, etc. Phosphor bronze has high corrosion resistance, resistance to abrasion, and does not spark when impacted. For medium-speed, heavy-duty bearings with an operating temperature of 250 °C.

It has the characteristics of self-alignment, insensitive to deflection, uniform bearing capacity of bearing, radial load at the same time, self-lubrication without maintenance, etc. Tin phosphor bronze is a kind of alloy copper, with good conductivity, not easy to heat, tin phosphor bronze jack reed hard wiring electrical structure, no rivet connection or frictionless contact, can ensure good contact, good elasticity, smooth dialing. The alloy has excellent machinability and chip formation properties, which can quickly shorten the machining time of parts.

Standard: (GB T 2059-2000).

Bronze containing 3 14 tin, in addition to phosphorus, zinc, lead and other elements are often added. It is the earliest alloy used by human beings, and has been used for about 4,000 years. It is corrosion-resistant, wear-resistant, has good mechanical properties and process properties, and can be welded and brazed well, and does not produce sparks during impact.

It is divided into processed tin bronze and cast tin bronze. The tin bronze used for pressure processing has a tin content of less than 6 7, and the tin content of cast tin bronze is 10 14. Commonly used grades are QSN4-3,,, ZQSN10, ZQSN5-2-5, ZQSN6-6-3, etc.

Tin bronze is a non-ferrous metal alloy with the smallest casting shrinkage, which can be used to produce castings with complex shapes, clear contours and low air tightness requirements. Tin bronze is highly resistant to corrosion in the atmosphere, seawater, fresh water and steam, and is widely used in steam boilers and seagoing ship parts. Phosphor tin-containing bronze has good mechanical properties and can be used as wear-resistant parts and elastic parts of high-precision machine tools.

Leaded tin bronze is often used as wear-resistant parts and plain bearings. Zinc-containing tin bronze can be used as a high airtight casting.

Dear, hello, it is a pleasure to serve you, about the difference between tin bronze and 4-3, for your reply that tin bronze is a dark color of red copper and tin, lead, its color is yellow to blue, phosphosphotin bronze color is yellow to red. Bronze is the earliest alloy in the history of metal casting, and the alloy of tin or lead added to pure copper (red copper) has special importance and historical significance. Bronze is the name given by modern people, in ancient times bronze was yellow and reddish, and after being buried in the soil, the color was blue and gray due to oxidation, which was called bronze.

Compared to pure copper (red copper), bronze has high strength and a low melting point (25% tin smelting bronze, the melting point will be reduced to 800). The melting point of pure copper (red copper) is 1083). Bronze has good castability, wear resistance and chemical stability.

After the invention of bronze, it immediately became popular, and since then human history has entered a new stage of the Bronze Age.

ZQSN10-1 belongs to the national standard cast tin bronze grade, the implementation standard: GB T 1176-1974

ZQSN10-1 tin bronze is more bronze color, and brass is ordinary yellow.

ZQSN10-1 has high hardness, excellent wear resistance, is not easy to bite the phenomenon, has good casting performance and cutting performance, and has good corrosion resistance in atmosphere and fresh water. Wear-resistant parts such as connecting rods, bushings, bearings, gears, worm gears, etc., which are used to work under high load (less than 20MPa) and high sliding speed (8ms).

The chemical composition of ZQSN10-1 is shown in the following figure: