DPS 1.05-5 for Hardness Values in Stainless Steel, Copper, and Nickel Alloys
DPS 1.05-5 is a Boeing Process Specification that outlines the hardness ranges and respective test methods for stainless steels, copper alloys, and nickel alloys for use in Boeing programs. In developing a single method of measurement, it helps to ensure consistency in material strength, durability, and performance through production to service in aerospace applications.
Material Coverage under DPS 1.05-5
The spec deals with a number of material groups relevant to Boeing projects. Stainless steel, which is represented by grades like 17-4 PH, 15-5 PH, and A286, can be found in fasteners, landing gear, and Copper alloys, which consist of beryllium copper and bronze, are used for electrical parts and wear-resistant parts. Nickel-base alloys, particularly Inconel 718 and its variants, are used for turbines, airframe, and high-temperature services.
Within DPS 1.05-5, the alloy groups are referenced with a given hardness range according to the specialized purpose of the alloys.
Applications in Aerospace Manufacturing
Materials certified under DPS 1.05-5 are essential for:
- Jet engine fasteners and structural bolts
- Hydraulic and fuel system components
- Heat exchangers and turbine assemblies
- High-strength electrical connectors
Related Specifications
SHEET & PLATE
Sheets and plates for high-temperature aerospace and industrial applications.
BARS & FORGINGS
Bars and forgings designed for high-strength, creep, and fatigue-resistant components.
BOEING SPECIFICATIONS
Boeing-approved Nickel 718 for airframe and engine parts.
GE AVIATION
Engine components requiring high-temperature strength and durability.
MTU AERO ENGINES
Gas turbine bars and forgings with precise heat treatment and mechanical properties.
PRATT & WHITNEY PWA
Engine shafts, discs, and high-stress components with strong fatigue and creep resistance.
SNECMA / SAFRAN
High-performance turbine parts and engine components for French aircraft engines.
ISRAEL AEROSPACE INDUSTRIES
Nickel 718 for defense and aerospace applications with strict mechanical and chemical standards.
Certified Material for Critical Service
All INCONEL 718 supplied by Fighter Jet Metals includes:
- Full test reports with heat numbers and traceability.
- Dual certifications with AMS and OEM standards when applicable.
- Compliance with AMS, Boeing, GE, and Pratt & Whitney specifications.
- NADCAP-certified heat treatment and SAE aerospace-approved quality systems.
Our INCONEL 718 products are designed for mission-critical aerospace and industrial operations where reliability and compliance are paramount.