| MATERIAL | COPPER ALLOY FILLER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-R-571,CL RCUZN-B FED SPEC SINGLE MATERIAL RESPONSE FILLER |
| FILLER METAL CHEMICAL COMPOSITION IN PERCENT | 60.00 COPPER NOMINAL FIRST ELEMENT |
| 35.00 ZINC NOMINAL SECOND ELEMENT |
| 1.20 IRON NOMINAL THIRD ELEMENT |
| 0.80 NICKEL NOMINAL FOURTH ELEMENT |
| 0.50 MAGNESIUM NOMINAL FIFTH ELEMENT |
| 0.15 SILICON NOMINAL SIXTH ELEMENT |
| PHYSICAL FORM | STRAIGHT |
| LENGTH | 36.000 INCHES NOMINAL |
| SHAPE | ROUND |
| OUTSIDE DIAMETER | 0.187 INCHES NOMINAL |
| PROCESS TYPE FOR WHICH DESIGNED | OXYACETYLENE |
| WELD POSITION FOR WHICH DESIGNED | ALL POSITIONS |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | RCUZN-B 0.187 |