Ultra-strength combined with extreme temperature capabilities

• Extreme high strength properties up to 275 ksi ultimate tensile.
• Maintains superior strength to 1100°F.
• MP159 chemisty and specification
• Datasheet for MP159
• MP159 button head cap screw features & benefits

As aerospace engineering advances, so must the materials to meet the technological requirements of this industry. Screws made from MP159 have been developed to provide a solution to high temperature, high strength components. MP159 button head cap screws offer strength capabilities similar to other Cobalt Alloys (MP35N) but can be used at much higher temperatures - up to 1100°F, compared to MP35N’s usable limit of 800F. In addition, MP159 button head cap screws can be used beyond 1100°F in short term situations.

Key Benefits

• High ultimate tensile strength of 275 ksi and yield strength of 265 ksi (Cold Worked and Age Hardened) combined with excellent ductility and toughness
• Similar corrosion resistance compared to MP35N which is usable in mineral acids, hydrogen sulfide, seawater and salt spray environments.
• Excellent fatigue resistance and creep strength at elevated temperatures
• Excellent resistance to crevice corrosion, stress corrosion cracking and hydrogen embrittlement

Applications

• The aerospace industry relies on MP159 button head cap screws for its most advanced gas turbine and jet engines, rocket boosters and jet propulsion systems.
• Power generation and chemical processing utilize MP159 screws for applications that demand high strength at extreme temperatures.

Resources: MP159 Torque Spec

MP159 Screw Types:  12 Point Screws, Button Head Cap Screws, Flat Head Screws, Hex Cap Screws, Hex Cap Screws, Set Screws, Socket Head Cap Screws, Tamper Resistant Security Screws

MP159 Button Head Cap Screw Features & Benefits

MP159 button head cap screws combine the similar shape of a pan head with the driver of a socket head. The socket driver is ideal for low clearance applications that require a large area clamping face. Compared to a standard socket head cap screw, MP159 button heads have a lower and wider profile. This can be useful when the clamping material is too thin to counter-bore.

Advantages
o  Wide bearing surface for clamping
o  Low profile head

MP159 Chemistry and Specifications

MP159N Specifications: UNS R30159

MP159 High Strength Data