AISI 4340 Nickel-Chromium-Molybdenum Steel
Alloy Steel
Basic Information
Category:Alloy Steel
Material Type:alloy
Alternative Names:
4340AISI 434040NiCrMo4
Tags:
high-strengthtoughnessaerospace
Composition & Structure
Composition:Fe-0.40C-1.8Ni-0.8Cr-0.25Mo
Microstructure:Tempered martensite
Description
High-strength steel with excellent toughness. Used in critical aerospace and automotive components.