Tin Bronze Alloy

Product Description

Tin bronze alloy is a type of bronze where tin serves as the primary alloying element, typically comprising between 3% to 14% of its composition. This alloy is widely used in the production of elastic components and wear-resistant parts due to its exceptional properties. In deformed tin bronze, the tin content usually does not exceed 8%, and additional elements such as phosphorus, lead, and zinc are often incorporated to enhance specific characteristics.

 

Phosphorus acts as an effective deoxidizer, improving the alloy's fluidity and wear resistance. The addition of lead enhances machinability and further boosts wear resistance, while zinc improves casting performance. Tin bronze alloy is renowned for its high mechanical strength, excellent wear reduction properties, and superior corrosion resistance. It is also easy to machine, offers good brazing and welding performance, has a low shrinkage coefficient, and is non-magnetic.

 

This versatile alloy is commonly used to produce bronze bushings, shaft sleeves, and anti-magnetic components. It can also be applied as a coating using techniques like wire flame spraying and arc spraying. With its combination of high strength, corrosion resistance, and outstanding casting performance, tin bronze alloy is a reliable material for demanding industrial applications.

 

 

Properties of Tin Bronze Alloy

• High Strength and Hardness

Offers excellent mechanical properties, making it ideal for heavy-duty applications.

Maintains strength even under high stress and load conditions.

• Wear Resistance

Superior resistance to friction and wear, suitable for components in motion.

• Corrosion Resistance

Resists corrosion in various environments, including seawater and industrial atmospheres.

• Fatigue Resistance

Performs well in applications involving repeated stress or cyclic loading.

• Machinability and Formability

Can be easily machined, cast, and fabricated into complex shapes.

• Low Friction Coefficient

Ideal for applications requiring smooth movement and reduced wear.

 

Common Grades of Tin Bronze Alloy

• C51000 (Phosphor Bronze 5%)

Contains 5% tin and 0.1% phosphorus, offering a balance of strength and ductility.

• C52100 (Phosphor Bronze 8%)

Contains 8% tin and 0.1% phosphorus, providing higher strength and wear resistance.

• C90700 (Tin Bronze 89-11)

Contains 11% tin, used for high-strength bearings and bushings.

 

Chemical Compostion

Alloy	Cu + Sn + P	Pb	Zn	Sn	P
C5111	Min 99.5	-	-	-	0.03 - 0.35
C5102	Min 99.5	-	-	-	0.03 - 0.35
C5191	Min 99.5	< 0.02	< 0.20	5.5 - 7.0	0.03 - 0.35
C5212	Min 99.5	-	-	-	0.03 - 0.35
C5210	Min 99.5	< 0.02	< 0.20	7.0 - 9.0	0.03 - 0.35
C5341	Min 99.5	0.8-1.5	-	-	0.03 - 0.35
C5441	Min 99.5	3.5-4.5	1.5-4.5	-	0.01 - 0.5

 

Physical Properties

Alloy	Temper	Tensile Strength (Mpa)	Elongation (%)	Vickers Hardness (HV)
C5191	O	≥315	≥42	/
	1/4H	390-510	≥35	100-160
	1/2H	490-610	≥20	150-205
	H	590-685	≥8	180-230
	EH	635-720	≥5	200-240
	SH	≥690	/	≥210
C5210	1/2H	470-610	≥27	140-205
	H	590-705	≥20	185-235
	EH	685-785	≥11	210-260
	SH	735-835	≥9	230-270
	SEH	770-885	≥5	245-285

 

Advantages of Tin Bronze Alloy

• Excellent combination of strength, wear resistance, and corrosion resistance.
• Performs well in both high-load and high-temperature environments.
• Low maintenance and long service life.
• Recyclable and environmentally friendly.

 

Available Size

• Plate: Thickness 1-150mm, Width 400~1100mm, Length 1000-6000mm
• Bar: Diameter 8-180mm

 

Test Equipment

 

Applications of Tin Bronze Alloy

• Bearings and Bushings

Widely used in plain bearings, bushings, and thrust washers due to its low friction and wear resistance.

• Gears and Springs

Suitable for high-stress components like gears, springs, and clutch parts.

• Marine Engineering

Used in ship propellers, pumps, and valves due to its resistance to seawater corrosion.

• Electrical Components

Employed in connectors, terminals, and switch parts because of its good electrical conductivity.

• Industrial Machinery

Used in heavy machinery components, such as hydraulic equipment and piston rings.

• Art and Sculpture

Popular for casting sculptures and decorative items due to its fine detail reproduction and durability.

 

Contact Us

Tin Bronze Alloy is a versatile and reliable material, particularly suited for demanding applications in marine, industrial, and mechanical engineering. If you need further details or specific technical data, feel free to ask!

 

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