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C90300 Tin Bronze

C90300 Tin bronze standard: (GB/T5231-2001)

Features and scope of application: Phosphor tin bronze, high strength, good elasticity and wear resistance, easy to weld and braze, good corrosion resistance in the atmosphere, fresh water and sea water, good machinability, suitable for hot pressing.

chemical composition:

Copper content 86~89%,

Tin content 7.8~9.0%,

Lead content 0.25%

Zinc content 3.5~5.0%

Iron content 0.15%

Antimony content 0.20%

Nickel + Cobalt content 0.8%

Sulfur content 0.05%

Phosphorus content 0.03%

Aluminum content 0.005%

Silicon content 0.005%

Tensile strength (b/MPa): 355

Elongation (10/%): 55

Elongation (5/%): 64

Brinell hardness (HB): 70

Note: Longitudinal mechanical properties of bar specimens at room temperature

Size: 40-120 diameter bronze with tin as the main alloying element.