MINIMUM PHYSICAL PROPERTIES FOR RWMA CLASS 2 COPPER C18150
GROUP A COPPER BASE ALLOYS |
HARDNESS ROCKWELL | CONDUCTIVITY % I.A.C.S. | YIELD STRENGTH ksi (TYPICAL) | ULTIMATE TENSILE STRENTH (TYPICAL) | ELONGATION % *(TYPICAL) | |
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) | ||||||
UPT 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% |