Material – ASTM B271 High-Lead Tin Bronze UNS C93800

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
TinSn %6.300 - 7.500
LeadPb %13.000 - 16.000
ZincZn %0.800 max.
IronFe %0.150 max.
Ni + CoNi% + Co%1.000 max.
AluminiumAl %0.005 max.
SiliconSi %0.005 max.
AntimonySb %0.800 max.
SulphurS %0.080 max.
PhosphorusP %0.050 max.
CopperCu %75.000 - 79.000
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Heat Treatment
As-Cast
Mechanical Properties
Tensile Strength in Mpa207 min.
Yield Strength in Mpa83 min.
Elongation in %15 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
B30 C93800 ASTM USA Ingot and Casting
B66 C93800 ASTM USA Ingot and Casting
SB-505 C93800 ASME USA Casting
SB-584 C93800 ASME USA Casting
C93800 SAE USA Casting
CA938 SAE USA Casting
CACIn604 KS Korea Ingot and Casting