CHEMICAL COMPOSITION %
CRITERIA | MIN. | MAX. |
Cu | 5550 | 57.50 |
Pb | 2.50 | 3.50 |
Al | 0.50 | |
Other imp. excl Al | 0.70 | |
Zinc | Remainder |
PHYSICAL PROPERIES
Rm - Tensile strength in Mpa 370 min
Elongation on 5.65 sq. root A% 25 min
Proof stress (0.20%) in kg/mm 160 min
Hardness (HV) 90 - 120 Min