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GROUP A COPPER BASE ALLOYS * |
HARDNESS
ROCKWELL (HRB/HRC) ** |
CONDUCTIVITY % I.A.C.S. *** |
ULTIMATE TENSILE STRENGTH ksi |
YIELD STRENGTH ksi 0.2% OFFSET |
ELONGATION % IN 2” OR 4 DIAMETERS | ||||||
SIZE RANGE | CLASS | CLASS | CLASS | CLASS | CLASS | ||||||
IN | MM |
CLASS 3 C18000 C17510 |
CLASS 4 C17200 |
CLASS 3 C18000 C17510 |
CLASS 4 C17200 |
CLASS 3 C18000 C17510 |
CLASS 4 C17200 |
CLASS 3 C18000 C17510 |
CLASS 4 C17200 |
CLASS 3 C18000 C17510 |
CLASS 4 C17200 |
DIAMETER—ROUND ROD STOCK (WROUGHT) | |||||||||||
UP TO 1” | UP TO 25 | 90 HRB | 33 HRC | 45% | 20% | 95 | 165 | 75 | 130 | 9% | 2.0% |
OVER 1” TO 2" | OVER 25 TO 51 | 90 HRB | 33 HRC | 45% | 20% | 92 | 165 | 75 | 130 | 9% | 2.0% |
OVER 2” TO 3" | OVER 51 TO 76 | 90 HRB | 33 HRC | 45% | 20% | 88 | 165 | 75 | 130 | 9% | 2.0% |
OVER 3” TO 3-1/2" | OVER 76 TO 89 | 90 HRB | 33 HRC | 45% | 20% | 88 | 165 | 75 | 130 | 9% | 2.0% |
OVER 3-1/2” TO 4" | OVER 89 TO 102 | 90 HRB | 33 HRC | 45% | 20% | 88 | 165 | 75 | 130 | 9% | 2.0% |
OVER 4” TO 4-1/2" | OVER 120 TO 114 | 90 HRB | 33 HRC | 45% | 20% | 88 | 165 | 75 | 130 | 9% | 2.0% |
THICKNESS - SQUARE, RECTANGULAR AND HEXAGONAL BAR STOCK (WROUGHT) | |||||||||||
UP TO 1" | UP TO 25 | 90 HRB | 33 HRC | 45% | 20% | 95 | 165 | 75 | 130 | 9% | 2.0% |
OVER 1" | OVER 25 | 90 HRB | 33 HRC | 45% | 20% | 90 | 165 | 75 | 130 | 9% | 2.0% |
ANNEALED MATERIAL **** | |||||||||||
ROUNDS | 20 HRB | 45 HRB | 20% - 45% | 15%-28% | -- | -- | -- | -- | -- | -- | |
THICKNESS—FORGINGS | |||||||||||
UP TO 1” | UP TO 25 | 90 HRB | -- | 45% | -- | 94 | -- | 50 | -- | 9% | -- |
OVER 1” TO 2" | OVER 25 TO 51 | 90 HRB | -- | 45% | -- | 90 | -- | 50 | -- | 9% | -- |
OVER 2” | OVER 51 | 90 HRB | -- | 45% | -- | 88 | -- | 50 | -- | 9% | -- |
CASTINGS | |||||||||||
ALL | ALL | 90 HRB | 33 HRC | 45% | 20% | 75 | 150 | 45 | 120 | 5% | 1.0% |