C18150 Chromium Zirconium

Typical Uses

Consumer

Pencil-type & light soldering guns: tips, rod extensions

 

Electrical

Resistance welding electrodes

 

MINIMUM PHYSICAL PROPERTIES FOR RWMA CLASS 2 COPPER

Size Range in MM Class 2 Class 2 Class 2 Class 2 Class 2
Diameter - Round Stock (cold worked)
Up to 1" Up to 22 75 HRB 75% 55 65 13%
Over 1" to 2" Over 25 to 51 70 HRB 75% 55 59 13%
Over 2" to 3" Over 51 to 76 65 HRB 75% 55 55 13%
Thickness - Square, Recatangle and Hexagonal Bar Stock (cold worked)
Up to 1" Up to 25 70 HRB 75% 45 65 13%
Over 1" Over 25 65 HRB 75% 40 55 13%
             
Thickness - Forgings 
Up to 1" Up to 25 65 HRB 75% 45 55 13%
Over 1" to 2" Over 25 to 51 65 HRB 75% 45 55 13%
Over 2" Over 51 65 HRB 75% 40 55

13%

Castings
all all 55 HRB 70% 20 45 12%
 

CHEMICAL COMPOSITION

(%max., unless shown as range or min.)

 

Min.Max

Cu Cr Fe Pb Si
Rem. .6-1.2 .10 .05 .10

Nominal 

Cu Cr Fe Pb Si
99.1 .9  -  -  -