C90300 ASTM
C90300 TIN BRONZE
C90300 TIN BRONZE
C90300 Tin Bronze is typically found in gear and high-strength bushing and bearing applications where high strength, low speeds, and heavy loads are present. Other high-strength applications for these alloys are pump impellers, piston rings, steam fittings, and valve bodies. C90300 Tin Bronze castings are utilized in movable bridge components, turntables for bridges, and other structures for fixed and expansion bearings with slow or intermittent movement and heavy loads.
| Material Grade: | C90300 - UNS C90300 - NAVY G - SAE 620 |
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OVERVIEW OF C90300 TIN BRONZE
C90300 Tin Bronze,
C90300 Tin Bronze CDA 90300 SAE 620 is an alloy offering good corrosion resistance and wear resistance with moderate machinability. Bronze 90300 provides high thermal conductivity, excellent ductility, and toughness, making it suitable for a wide variety of uses in aerospace, marine defense, and commercial industry. This cast bronze material is often found in landing gear bushings, pumps, valves, bearings, gears, gear blanks, and many other industrial applications.
C90300 Tin Bronze
90300 Tin Bronze / Bronze CuSn8Zn4 is a tin bronze with the addition of 8% tin and 4% zinc, commonly known as "Navy G". The tin increases the strength of the alloy and gives good corrosion resistance in marine environments and zinc is added to act as a deoxidant and assist with pressure tightness. C90300 offers a combination of engineering properties, such as high strength, excellent fatigue, good bearing properties, coupled with corrosion resistance. It has excellent bearing properties with a low coefficient of friction and high wear resistance; it can be used under high loads with low-speed applications. Bearings need good alignment of mating parts and adequate lubrication.
C90300 Tin Bronze SAE 620
C90300 Tin Bronze can be joined by soldering, but brazing must be preformed so as to avoid strain and cooled slowly to avoid problems with hot shortness. The alloy has a machinability rating of 30% compared with free machining brass at 100%. Tin Bronze C90300 is a unique alloy offering numerous beneficial properties, making it a high-utility material across various industries. Manufactured by Wieland Diversified, a leader in the specialty metals industry, Bronze CDA 90300 stands out due to its superior corrosion resistance, wear resistance, and thermal conductivity. Its exceptional machinability allows it to be used in multiple applications, ranging from landing gear bushings and pumps to valves, bearings, and gears.
C90300 Tin Bronze CDA 90300 SAE 620 does not stop impressing with its corrosion resistance. You can also characterize it by its superior fatigue strength and bearing properties. These characteristics make it the perfect material for high loads in low-speed applications. Nonetheless, bearings made from this alloy require proper alignment and sufficient lubrication to function optimally.
C90300 Tin Bronze Hollow Pipe
When it comes to joining, C90300 Tin Bronze CDA 90300 SAE 620 offers flexibility. While you can effortlessly join it by soldering, you must be careful when brazing to avoid strain, followed by slow cooling to prevent issues with hot shortness. Considering its machinability, C90300 Tin Bronze CDA 90300 SAE 620 has a rating of 30 percent compared to free-machining brass at 100 percent.
C90300 Tin Bronze Bushing
Purchasing C90300 Tin Bronze CDA 90300 SAE 620 from KOJAKO offers several advantages. The company excels in providing high-quality specialty metals, ensuring that the Tin Bronze CDA 90300 you receive meets or exceeds industry standards. Wieland Diversified’s commitment to customer satisfaction means that you can expect excellent service and support throughout the procurement process. This commitment, coupled with the exceptional characteristics of Tin Bronze CDA 90300, makes purchasing this alloy a smart decision for industries seeking a durable, high-performance material.
PROPERTIES OF C90300 TIN BRONZE
C90300 Tin Bronze has hard, strong, tough, resistant to wear and fine-grained. C90300 Tin Bronze has good machinability and corrosion-resistant to sea water, good resistance to pounding. C90300 Tin Bronze resists corrosion from seawater and stands up to impacts and wear, also machines easily and can be cast.
The Bronze 90300 alloy is a Tin Bronze with 8% tin and 4% zinc. This composition is often referred to as Navy G. This unique blend gives the alloy a remarkable level of strength that withstands harsh conditions, especially in marine environments. Thanks to its added tin content, the alloy’s corrosion resistance is significantly elevated. Further, adding zinc acts as a deoxidant, promoting pressure tightness. Whether for aerospace, marine defense, or commercial industry uses, the C90300 Tin Bronze alloy offers an unmatched combination of engineering properties, including high strength, excellent fatigue characteristics, and exceptional bearing qualities.
PROPERTIES OF TIN BRONZE C90300 SAE 620 CDA 90300 |
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Chemical Composition |
Mechanical properties |
Physical properties |
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| %Cu | 86 | 89 | Brinell hardness (HBW min) | 70 | Density (kg/dm3) | 8.8 |
| %Sn | 7.5 | 9 | Tensile Strength (MPa min) | 303 | Specific Heat J/(g*K) | 377.1 |
| %Pb | 0.3 | 0.5% Yield strength (MPa min) | 152 | Thermal Expansion 10-6 K | 17.3 | |
| %Zn | 3 | 5 | Elongation (% min) | 18 | Thermal Conductivity W/(m*K) | 74.8 |
| %Ni | 1 | Electrical Conductivity % IACS at 68⁰F | 12 | |||
| %Fe | 0.2 | |||||
| %Sb | 0.2 | |||||
| %S | 0.05 | |||||
| %Al | 0.005 | |||||
| %Mn | 0.01 | |||||
| Si | 0.005 | |||||
| %P | 0.05 | |||||
APPLICATION OF C90300 TIN BRONZE
From good properties of C90300 Tin Bronze, CDA 90300 / SAE 620 is used for the heavy parts in the industries as: Valves, Potable Water Applications, Gears, Pump Components, Bearings, Bushings, Pump Impellers, Piston Rings, Valve Components, Seal Rings, Steam Fittings, Trunnion Bearings, Wrist-Pin Bushings, Piston-Pin Bushings, Machine Tool Bushings, Roll-Mill Bearings, and Bridge Bearings...
The Physical, Fabrication and Thermal Properties shown here represent reasonable approximations suitable for general engineering use. Due to commercial variations in compositions and to manufacturing limitations, they should not be used for specification purposes.
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