It is suitable for both permanent mold and pressure die castings. No lead is intentionally added to EnviroBrasses. Even at maximum permissible levels, however, the lead content of EnviroBrass alloys are sufficiently low enough to pass the stringent lead-leach requirements of NSF Standard 61 for most plumbing devices. If a lower lead content is required, this can be specified when ordering metal from an ingot supplier. The maximum phosphorous levels noted are usually associated with red brass alloys.
Bismuth acts very much like lead in many respects.
Like lead, bismuth is nearly insoluble in copper and copper alloys. Furthermore, it causes machining chips to break up into small, easily removed particles, similar to lead. Unlike lead, bismuth is not known to be toxic to humans, except in cases of consumption of immense doses. In fact, its most common use for many years has been as the major ingredient in popular stomach medications. From a health standpoint, selenium, like copper, is one of the essential nutrient elements.