PRESIDENT METAL & ALLOYS

718 NICKEL TUBING

718 NICKEL TUBING

Alloy 718 nickel tubing is an age-hardenable nickel-chromium-iron alloy also containing significant amounts of niobium, molybdenum, titanium and aluminum. It combines good corrosion resistance with extremely high strength. Typical applications include heat exchangers and O-rings.

STOCK SIZE RANGE:

WELDED PRODUCT

SEAMLESS PRODUCT

OD:1″ OD through 7″ OD
OD:.250″ through 2″
Walls:.035″ through .080″ Walls:.028 through .095″
Specifications: AMS 5596 Specifications: AMS 5589

 

Typical Chemical Composition %
Nickel 50.0-55.0
Chromium 17.0-21.0
Iron nominal 18.5
Molybdenum 7.0-9.5
Niobium 2.75-4.0
Aluminum 0.035
Titanium 1.0-1.7
Sulfur 0.01
Carbon 0.03
Manganese 0.035
Silicone 0.35
Phosphorus 0.015
Boron 0.006

Typical Mechanical Properties

1000 psi Mpa
Yield Strength (0.2% offset) 159.0 1096
Tensile Strength 191.5 1320
Elongation % 20
Rockwell Hardness 40C