Alloy 625 (Inconel 625) Nickel Alloy
Alloy 625
Sourced upon request
- EN2.4856
- ENNiCr22Mo9Nb
- UNSN06625
- TicariInconel® 625
Nickel-chromium-molybdenum-niobium solid-solution alloy. Combines high corrosion resistance in chloride media, acids and seawater with strength up to 980 °C; good weldability. Sourced to specification.
01Material Properties
- High resistance to pitting and crevice corrosion
- Service from cryogenic to 980 °C
- Not hardenable by heat treatment; solid-solution strengthened
- Excellent weldability
- High fatigue and thermal fatigue strength
02Applications
- Chemical and petrochemical process equipment
- Marine and offshore components
- Gas turbine exhaust and combustion parts
- Flue gas desulphurisation systems
- Weld overlay and filler
03Delivery Condition
- Annealed (Grade 1) or solution annealed (Grade 2); bar, plate, sheet, tube.
04Heat Treatment
Typical values
- Annealing (Grade 1)
- 870–1040 °C; rapid cooling
- Solution annealing (Grade 2)
- 1095–1205 °C; water
- Hardening
- Not hardenable by heat treatment
- Stress relieving
- Normally not required
- Post-weld
- No heat treatment required
Heat treatment cycle (schematic)
Values are approximate and for information only; they vary with section size, heat and furnace conditions. Binding values are determined from the manufacturer’s data under laboratory conditions.
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