# Hastelloy B-3

*N10675*

> Third-generation Ni-Mo alloy with maximized thermal stability and fabricability.

Hastelloy B-3 represents the third-generation optimization of the nickel-molybdenum alloy family. It eliminates the formation of detrimental Ni₃Mo and Ni₄Mo phases during fabrication, allowing for welding and hot forming without the risk of intergranular corrosion that affected earlier B-grade alloys.

## Key features

- Maximized thermal stability
- Eliminates Ni₃Mo/Ni₄Mo embrittlement
- Weldable without pre-heat
- ASME approved
- Best-in-class HCl resistance

## Applications

- HCl absorber columns
- Chemical reactor internals
- Acid regeneration systems
- Pharmaceutical process equipment
- Fine chemical synthesis vessels

## Standards

- ASTM B333
- ASTM B335
- ASTM B366