Is tin bronze qsn8 0 3 resistant to seawater corrosion

Tin bronze, to be precise, is a phosphor bronze, he contains phosphorus, so we are usually called phosphor bronze, this material has seawater corrosion resistance, according to this characteristic, tin bronze is often used to make Rongchang bronze rolled bushing, with a special formula of high-density copper alloy strip as the matrix, the surface can be rolled diamond-shaped or hemispherical oil cavities and oil grooves according to user requirements. It has the advantages of high density, large bearing capacity, good wear resistance and long service life, so as to replace the traditional cast copper sleeve, which can reduce the mechanical volume and reduce the cost.

Tin bronze is bronze with tin as the main alloying element. The tin content is generally between 3 and 14%, which is mainly used to make elastic elements and wear-resistant parts.

Chemical composition. sn：

p：zn：≤

ni：≤fe：≤

pb: cu: margin.

Mechanical properties. Tensile strength b (MPa): 350Elongation δ10 (%55

Note: Longitudinal tensile mechanical properties of bars at room temperature.

Specimen size: diameter or distance to opposite sides 40 120

Copper alloy is an alloy composed of pure copper as a matrix and the addition of one or several other elements. Pure copper is purple-red and is also known as copper. Pure copper has a density of 1083 melting point and excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance.

It is mainly used to make electrical equipment such as generators, busbars, cables, switchgears, transformers, heat exchangers, pipes, flat plate collectors and other thermal conduction equipment for solar heating devices. Commonly used copper alloys are divided into three categories: brass, bronze, and cupronickel.

Chemical composition refers to the proportion of each chemical element in it, expressed in laboratory. For example, the chemical formula of water is H2O, which means that each molecule is composed of two hydrogen atoms (H) and one oxygen atom (O). Chemical composition, hope it helps you :

The mechanical properties of materials refer to the mechanical characteristics of materials when they are subjected to various external loads (tensile, compression, bending, torsion, impact, alternating stress, etc.) in different environments (temperature, medium, humidity). Therefore, the following Shanghai Moju special steel has also rearranged its mechanical properties:

Tin phosphor bronze has higher corrosion resistance, resistance to wear, and does not spark when flushed out. It is used for medium speed, heavy load with bearing, and the maximum operating temperature is 250 °C. It has the characteristics of self-alignment, insensitive to deflection, uniform bearing capacity, high bearing capacity, radial load at the same time, self-lubrication without maintenance, etc.

Tin phosphor bronze is an alloy of copper with good electrical conductivity, which is not easy to heat, ensures safety and has strong fatigue resistance. The jack reed of tin phosphor bronze is hard-wired with electrical structure, no rivet connection or frictionless electric shock, which can ensure good contact, good elasticity, and smooth unplugging and unplugging.

Each copper alloy has its own product characteristics, which are used in different parts and in different environments, so this copper alloy is the same:

It has high corrosion resistance in seawater, good mechanical properties, cold brittleness during cold working, only suitable for hot pressing processing, good machinability, easy welding and fiber welding, but has a tendency to corrode and crack (quaternary cracking).

Tin phosphor bronze has high strength, elasticity, wear resistance and magnetic resistance, good workability under pressure in hot and cold states, high flame resistance to electric sparks, can be welded and fiber welded, has good machinability, and is corrosion resistant in atmosphere and fresh water.

Product use: used to make springs and spring contact pieces with good conductivity, wear-resistant parts and anti-magnetic parts in precision instruments, such as gears, brush boxes, vibrating plates, contactors, etc. The alloy has excellent machinability and chip forming properties, which can quickly shorten the machining time of parts.

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.

Shanghai Shanghu: Characteristics and Scope of Use:

It is an aluminum bronze containing iron and manganese elements, which belongs to high-strength heat-resistant bronze, with stable mechanical properties at high temperature (400), good friction reduction, good corrosion resistance in the atmosphere, fresh water and seawater, good thermal pressure processing, heat treatment strengthening, welding, not easy fiber welding, and good machinability.

Chemical Composition: ,Zn: ,Ni: ,Fe: ,Pb: ,Cu: Margin.

Aluminum bronze belongs to high-strength heat-resistant bronze, with stable mechanical properties at high temperature (400), good friction reduction, good corrosion resistance in the atmosphere, fresh water and seawater, heat treatment strengthening, welding, not easy to braze, and good machinability.

Tin bronze casting copper alloy has good wear resistance and corrosion resistance, easy processing, good casting performance and air tightness. Wear-resistant and corrosion-resistant parts for working at high loads, medium sliding speeds.

You choose aluminum bronze is more suitable.

I would like to add that if you are looking for high hardness aluminum bronze, or tin bronze, you can come to us. Hardness up to HB390 450...