Material – ASTM B271 Silicon Bronze UNS C87300

Standard Specification for Copper-Base Alloy Centrifugal Castings

Group - Non-Ferrous Copper Alloy

Sub Group - ASTM B271 Copper-Base Alloy Centrifugal Castings

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Rod, Bar, Tube and Shapes

Chemical Composition
LeadPb %0.200 max.
ZincZn %0.250 max.
IronFe %0.200 max.
ManganeseMn %0.800 - 1.500
SiliconSi %3.5000 - 5.000
CopperCu %94.000 min.
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Heat Treatment
As-Cast
Mechanical Properties
Tensile Strength in Mpa310 min.
Yield Strength in Mpa124 min.
Elongation in %20 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
B198-12A ASTM USA Casting
B271 C87300 ASTM USA Casting
B30 C87300 ASTM USA Ingot and Casting
B584 C87300 ASTM USA Casting
SB-584 C87300 ASME USA Casting
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