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Bronze Round Bar 630 contains a high amount of nickel and aluminum, giving it an exceptionally high strength, as well as high wear resistance, corrosion resistance, and ductility. Additionally, 630 maintains its strength even at elevated temperatures and for prolongued periods. It is typically used in aerospace and marine applications such as valve stems, high strength bushings, valve seats and guides, gears, cams, nuts, shafts, and ship propellers.

shape Image

Dimension Name


Alloy 630
Diameter 0.5
Max Length 144
MTR Availability Yes
Full Length true
Material Bronze
Shape Bar-Round
Custom Cut Warehouse 1
Material Specifications

This material meets the following specs: ASTM -B150, AMS -4640

Weight/Lineal Foot

0.65 pounds
Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.

Mechanical Properties

Property Value
Rockwell Hardness B scale 94
Density g/cm^3 8
Elongation Typical % 10
Modulus of Elasticity KSI x 10^3 17
Ultimate KSI 110
Specific Heat BTU/lb-°F (32-212F) 0 min
Thermal conductivity BTU-in/hr-ft^2-°F 262
Yield KSI 68
Melting Point °F 1895 - 1931
Ultimate shear strength KSI 61

Chemistry Information: 630 Bronze

Element Percentage
Cu 76.8 - 85
Ni 4 - 5.5
Al 9 - 11
Fe 2 - 4
Mn 0 - 1.5
Zn 0 - 0.3
Residual 0 - 0.5
Sn 0 - 0.2
Si 0 - 0.25
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