SSC INVAR 36 nickel alloy plate (UNS K93603) is an austenitic nickel-iron alloy containing 36% nickel. It has an extremely low coefficient of thermal expansion from -418°F (-250°C) to 392°F (200°C). The alloy has good fatigue and mechanical properties at cryogenic temperatures. It exhibits moderately high strength along with good ductility and toughness. These properties along with good fabrication characteristics make SSC INVAR 36 nickel alloy plate ideal for applications requiring precise dimensional stability.
SC INVAR 36 nickel alloy plate can be hot and cold worked, machined, and formed. Fabrication processes are similar to austenitic stainless steels. The alloy can be welded using filler wire with expansion rates similar to those of the base metal.
SSC INVAR 36 nickel alloy plate resists corrosion in dry atmospheres at room temperature. In humid or moist atmospheres, corrosion can occur in the form of rust.
Applications
SSC INVAR 36 nickel alloy plate is utilized extensively in other industrial applications where dimensional stability is essential.
1, Tooling and Dies for Aerospace Composite Tooling
Thermoset Epoxy Systems
Resin Transfer Molded Tools
2, Cryogenic Components and Piping
3, Laser Components
4, Liquified Natural Gas (LNG)Marine fixtures and fasteners
Production and Storage Equipment
LNG Tanker Membranes
5, Marine Components
6, Wind Turbines
Nickel | 36.00% | Chromium | 0.25% max |
Carbon | 0.05% max | Manganese | 0.60% max |
Silicon | 0.40% max | Cobalt | 0.50% max |
Phosphorus | 0.015% max | Sulfur | 0.015% max |
Aluminum | 0.10% max | Magnesium | 0.10% max |
Zirconium | 0.10% max | Titanium | 0.10% max |
Iron | Balance |
Mechanical Properties
Temperature | Yield Strength | Tensile Strength | Elongation on 50 mm | Reduction of Area % | |||
°C | °F | (MPa) | psi | (MPa) | psi | ||
20 | 68 | 240 | 35.0 | 490 | 71.0 | 42 | 70 |
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