Bronze 673 (Silicon Manganese Bronze) Product Guide

Applications | Mechanical and Chemical Data | Tolerances

Overview

This material has excellent corrosion resistance, high strength, and excels at usage in high speed and heavy load environments. 673 can also be hot forged, soldered, and is easily machined. It is typically used in fasteners, industrial projects, and marine hardware.

Common Trade Names

UNS C67300, CDA 673, C673, Free-Cutting Bearing Bronze

Other Resources

Weight Calculator | Mill Test Reports

Products

Purchase Bronze 673 Round Bar

Applications

Marine
Fasteners

	-HR50
Physical Properties 673
Density	0.307 lb/in3
Ultimate Tensile Strength	85 ksi
Yield Tensile Strength	66 ksi
Shear Strength	44 ksi
Shear Modulus	5,900 ksi
Hardness Rockwell \| Brinell	B86 \| 169
Elongation at Break Percentage	16%
Modulus of Elasticity	15,000 ksi
Poisson's Ratio	0.31
Machinability Percentage	70%
Melting Point	1,530-1,610 °F
Specific Heat	9.3 x 10^-2 BTU/lb-°F
Thermal Conductivity	660 BTU-in/hr-ft^2-°F
Electrical Conductivity	22% IACS

Chemistry Information
Element	Percentage
Cu	58 - 63
Mn	2 - 3.5
Zn	27.2 - 39.1
Pb	0.4 - 3
Si	0.5 - 1.5
Fe	0 - 0.5
Sn	0 - 0.3
Ni	0 - 0.25
Al	0 - 0.25
Residual	0 - 0.5