Understanding BS EN 10242: The Standard for Malleable Iron Fittings
Conclusion
(Whiteheart). These materials must meet a minimum tensile strength of 350 and a minimum elongation of 10%. : Threads must comply with
Material: Specifies requirements for malleable cast iron, typically categorized by design symbols (A, B, C, D) to denote material grade and thread type.
Surface Finish: Fittings are often available as black (uncoated) or hot-dip galvanized for corrosion resistance. The "3-Piece Union" Component
Standards are dense. Finding a specific clause regarding "thread length" or "heat treatment" in a paper document takes minutes. In a PDF, it takes two seconds using the search function.