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C48500


Brass Alloys -> C48500

      

 

 

General Characteristics 

C48500 (Naval Brass Leaded) is similar to C46400. The addition of Lead provides a high degree of machine-ability. Good capacity for hot-forming but is not recommended for cold-working. Can be readily brazed or soldered, very good corrosion resistance to seawater, high ductility, high electrical / thermal conductivity, high impact strength, good creep resistance. Typical applications include: fasteners, valve stems, light bearings, gears, screw machine parts, marine hardware and seawater valve stems. 

 

 

Typical chemical composition 

Weight % 

Cu 

Pb 

Sn 

Fe 

Zn 

Minimum 

59.00 

1.30 

0.50 

-- 

Bal 

Maximum 

62.00 

2.20 

1.00 

0.10 

 

 

Physical properties 

Characteristics 

 

English 

Metric 

Nominal density  

20°C   /   68°F 

0.305 lbs/in3 

8.44g/cm3 

Melting range 

 

1630-1650 °Fz 

885-900 °C 

Specific heat  

20°C   /   68°F 

0.0908 BTU/lb - °F 

380 J/KG- °K 

Thermal conductivity 

20°C   /   68°F 

67.1 BTU/ft-hr-°F 

116 W/m- °K 

Average coefficient of thermal expansion 

From 20°C (68°F) to temperature,  

300°C / 572°F 

11.8 micro in/in- °F 

21.2 micro m/m- °K 

Electrical  resistivity 

20°C   /   68°F 

66.3 nW × m 

 

 

Mechanical properties 

Temper 

Tensile 

Hardness 

Shear 

25mm diameter Rod (1'') 

Ultimate 

Yield 

Elongation at Break 

HRB 

Strength 

 

KSI 

MPa 

KSI 

MPa 

% 

 

KSI 

MPa 

O60- soft annealed 

57 

393 

24.9 

172 

40 

55 

36 

248 

H01- ¼ hard (8%) 

69 

476 

46 

317 

20 

78 

39 

269 

H02- ½ hard (10%) 

75 

517 

53 

365 

15 

82 

40 

276 

 

 

Specifications 

 

Rod & Bar: 

·               AMS – QQ-B-626, QQ-B-637 

·               ASTM – B21, B124 

Wire: 

·               AMS – QQ-B-626 

Plate: 

·               AMS – QQ-B-639 

 

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The list of popular industry specifications is offered for general familiarization and cross reference purposes, thus should not be considered as a complete listing.

The information presented doesn't claim to replace proffesional consultation in metals selection or production. 

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