Our Process
Post-Weld and Post-Work Heat Treatment for Bronze Alloys
Temper annealing heats a casting to a controlled temperature below the recrystallization range, holds it there long enough to reduce hardness and restore ductility, then cools it at a controlled rate. The treatment is most commonly applied after weld repair, mechanical straightening, or to castings that have exceeded the specified hardness maximum.
For Navy applications, temper annealing is performed to a written heat treatment procedure with full furnace chart documentation. Brinell hardness is measured after treatment and reported on the material certification that ships with the casting.
Post-Treatment
Brinell hardness measured on every lot after temper annealing — results recorded on material certification
Key Capabilities
Temper Annealing Advantages
Restores Ductility
Temper annealing softens work-hardened zones created during welding, straightening, or prior thermal cycling — restoring ductility and toughness to meet specification minimums.
All Bronze & Copper Alloys
Applied to tin bronze, leaded tin bronze, manganese bronze, aluminum bronze, Monel, and copper-nickel — any copper-base alloy where post-work or post-weld heat treatment is required.
MIL-SPEC Documentation
Full heat treatment certifications including furnace charts, soak temperature, time, hardness test results, and operator sign-off furnished for every Navy and defense delivery.
Hardness Verification
Brinell hardness measurement performed on each casting after temper annealing — results reported on the certification and verified against specification limits.
Specifications
