Weld Mold 9225 description: Weld Mold 9225 is an economical high performance austenitic product that produces sound, crack-resistant, dense deposits that work harden rapidly. It is an excellent build-up or repair material for manganese base materials. Weld Mold 9225 is a versatile joining, surfacing and buildup material depositing nickel manganese steel. All weld metal deposits retain good hardness at elevated temperatures and have moderate corrosion resistance.