Alloy 625 Seamless Nickel Pipe

Alloy 625 nickel pipe is made from a nickel-chromium-molybdenum alloy with an addition of niobium. High strength and toughness from cryogenic temperatures to 1800°F. Good oxidation resistance, exceptional fatigue strength, and good resistance to many corrosives.

Typical applications include chemical processing, aerospace and marine engineering, pollution control equipment, and nuclear reactors.

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Stock Size Range:

OD: 1/2" through 4"
Wall: Schedule 10 through Schedule 80

Specifications: ASTM B444, ASME SB444

Typical Chemical Composition %
Nickel 58.0 min
Molybdenum 8.0-10.0
Nb 3.15-4.15
Iron 5.0 max
Silicon 0.50max
Sulfur 0.015 max
Carbon 0.10 max
Manganese 0.50 max
Al 0.40 max
Cr 20.0-23.0
Ti 0.40 max
P 0.015 max
Cobalt 1.0 max
Typical Mechanical Properties
Solution Annealed  
Yield Strength (0.2% offset) 40 ksi min
Tensile Strength 100 ksi min
Elongation % in 2 inches 30