MIL-S-46850 Maraging Steel
MIL-S-46850 specifies maraging steel products like C200, C250, C300, C350 grades in the forms of bar, plate, sheet, strip, forgings, and extrusions. These materials are used for high-quality aircraft components where high strength, toughness, and performance are required.
Maraging steels under this specification include nickel-cobalt alloy steels that can also be classified as stainless steel. These have gained worldwide recognition for their excellent mechanical properties. These steels achieve ultra-high strengths through the process of aging heat treatment while maintaining their toughness, corrosion resistance, and stability.
Forms Covered by MIL-S-46850
Maraging per MIL-S-46850 Round Bar diameters range from 0.1875″ to 8.00″ diameter.
Plate thicknesses range from 0.1875″ to 5.00″ Thick.
Sheet thicknesses range from 0.015″ to 0.160″ Thick.
MIL-S-46850 Material Characteristics
Key features of MIL-S-46850 maraging steel include:
• Ultra-high strength after aging heat treatment
• Exceptional toughness and resistance to crack propagation
• Corrosion-resistant nickel-cobalt alloy composition
• Excellent dimensional stability
• Machinability in the annealed condition
• High-performance reliability in aerospace and defense applications
MIL-S-46850 maraging steel is commonly used in applications requiring strength above 200 ksi (C200) to 350 ksi (C350) depending on the grade.
Applications of Maraging C300
Maraging C300 is commonly used in the aerospace industry for the production of aircraft and missile components such as landing gear, fuselage frames, and engine parts.
Maraging C300 is used in the defense industry for the production of armor plates, and various other applications requiring high strength, toughness and corrosion resistance.
Maraging C300 is used in the medical industry for the production of orthopedic and dental implants, due to its biocompatibility and strength.
Maraging C300 is used in the production of gas turbine components such as blades, vanes, and disks, due to its high-temperature performance and strength.
Maraging C300 is used in the production of tooling and dies, due to its high strength, toughness, and machinability. 0.020″ to .150″ Thick.
MARAGING C300 CROSS SPECIFICATIONS
Bars & Forgings
Semi-finished bars and forged shapes used in high-strength, precision-machined components.
ROCKWELL INTERNATIONAL
Manufacturer-specific standards for aerospace and defense components.
MILITARY
Military-grade specification for maraging steel structural and tooling applications.
Certified Material for Critical Service
Aerospace and defense programs require strict adherence to recognized material standards and manufacturer specifications. Fighter Jet Metals supplies maraging steels and other aerospace alloys in accordance with AMS, and MIL requirements.
Material can be supplied to specifications used by leading aerospace manufacturers, including Boeing, Gulfstream, Cessna, Northrop Grumman, GE Aviation, and Pratt & Whitney.
All material is delivered with full mill certification, lot traceability, and supporting documentation to meet the quality, compliance, and traceability requirements of aerospace and defense applications.