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UNS C90700
Category Copper Alloy
Class Cast
Type Tin bronze
Designations United States: UNS C90700

Composition
ElementWeight %
Cu  89 
Sn  11 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8.8-8.94 25  
Poisson's Ratio 0.34 25  
Elastic Modulus (GPa) 117 25  
Tensile Strength (Mpa) 303 (379)  25  (castings: centrifugal, continuous, investment, permanent mold, sand) 
Yield Strength (Mpa) 152 (207) 
Elongation (%) 20 (16) 
Reduction in Area (%)  
Note: Values in parentheses indicate responses to heat treatment
Hardness (HB500) 80 (102)  25  (as cast) 
Note: Value in parentheses indicates response to heat treatment.
Glossary
STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.