AMS 4590-C63020

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Aluminum is the main alloying metal added to copper in aluminum bronze. A variety of aluminum bronzes of differing compositions have found industrial use, with most ranging from 5.00% to 11.00% aluminum by weight, the remaining mass being copper. Other alloying agents such as iron, nickel, manganese, and silicon are also oftentimes added. Aluminum bronzes are most valued for their high strength and corrosion resistance.

Info

Product Description: Nickel Aluminum Bronze
Tempers: TQ50 Quenched and Tempered
Solids: 
Hex: 
Rectangles: Consult Mill
Standard Lengths: 24"

Typical Uses

Aerospace: bushings, bearings
Industrial: bearings, forming dies for roll bearings, hydraulic bushings for earth moving equipment, valve balls, valve parts-cryogenic, wear plates, dies
Marine: valves, hydraulic blocks, fixtures, fittings

Similar or Equivalent Specification

CDA ASTM Asarcon SAE AMS Federal Military Other
C63020 B150
B150M
    4590      

Chemical Composition

Cu% Pb% Sn% Zn% Fe% Ni%1 Al% Co% Cr% Mn% Si%
Chemical Composition according to ASTM 4590

1Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min. Single values represent maximums.

Rem.
 
0.03
 
0.25
 
0.30
4.00-
5.50
4.20-
6.00
10.00-
11.00
 
0.20
 
0.05
 
1.50
 
0.15

Mechanical Properties

Mechanical Properties according AMS 4590

C63020

TQ50 Quenched and Tempered

SIZE RANGE: UP TO 1" DIAMETER INCLUSIVE
Tensile Strength, min Yield Strength, at .2% Offset, min Elongation, in 2 inches (50.8 mm) or 4D Rockwell "C" Hardness Remarks
Ksi MPa Ksi MPa % min HRC  
135 931 100 689 6 26  
SIZE RANGE: OVER 1" TO 2" INCLUSIVE
Tensile Strength, min Yield Strength, at .2% Offset, min Elongation, in 2 inches (50.8 mm) or 4D Rockwell "C" Hardness Remarks
Ksi MPa Ksi MPa % min HRC  
130 896 95 655 6 26
SIZE RANGE: OVER 2" TO 4" INCLUSIVE
Tensile Strength, min Yield Strength, at .2% Offset, min Elongation, in 2 inches (50.8 mm) or 4D Rockwell "C" Hardness Remarks
Ksi MPa Ksi MPa % min HRC  
130 896 90 621 6 26

Physical Properties

  US Customary Metric
Melting Point - Liquidus 1940° to 1967° F 1060° to 1075° C
Density 0.274 lb/in3 at 68° F 7.60 gm/cm3 at 20° C
Specific Gravity 7.60 7.60
Electrical Resistivity 132.33 ohms-cmil/ft at 68° F 22.0 microhm-cm at 20° C
Thermal Conductivity 31.2 Btu · ft/(hr · ft2 · °F) at 68° F 54.0 W/m at 20° C
Coefficient of Thermal Expansion 9.4 · 10-6 per °F (68°-572° F) 17.0 · 10-6 per °C (20°-300° C)

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