Why Fire Protection OEMs Are Converting Valve Bodies from Copper to MIM Stainless Steel

The copper cost problem

Copper and brass valve bodies have dominated fire protection for decades — but LME copper swings of 20%+ in a single quarter make annual forecasts unreliable.

Why MIM 304 stainless works

Metal injection molding delivers near-net-shape stainless components with:

• 40–60% lower material cost vs machined brass at volume
• Tighter tolerances on internal flow paths
• ISO 9001:2015 traceability for UL/FM supply chains

Conversion checklist

1. Identify cast/machined parts with stable annual volume (>50k units)
2. Share STEP/IGES drawings for DFM review
3. Validate corrosion and pressure test requirements
4. Run pilot tooling — typical lead time 6–8 weeks

Start a conversion project with MIM Precision engineering.