Browse Topic: Alloys

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Conceptual Design and Aerodynamic Configuration of the Relithia Nova: A 2000kg Hybrid-Electric STOL Aircraft2026-01-0660To be published on 07/01/2026
This paper presents the conceptual design of the Relithia Nova, a hybrid-electric Short Take-Off and Landing (STOL) aircraft engineered to provide essential connectivity to remote regions with limited aviation infrastructure, such as the South Pacific and Caribbean. Designed with a Maximum Take-Off Mass (MTOM) of 2,000 kg, the aircraft accommodates six occupants, including the pilot, and is optimized for operations on short, unprepared airstrips up to 2,000 ft elevation. The Relithia Nova employs a series-hybrid propulsion architecture featuring two wing-mounted turboshaft engines coupled with electric generators that drive propulsive rotors via a high-capacity lithium-ion energy storage system. This configuration ensures sustained power for high-lift generation while reducing emissions. Aerodynamically, the aircraft utilizes a high-aspect-ratio wing (AR=8.67) based on the NACA 23012 airfoil, chosen for its favorable lift-to-drag characteristics in subsonic flow (Mach 0.23 cruise
Chikwanha, Hendrick Tafadzwa
Predictive model and analysis of the resultant force in the dry machining of Mg-4Zn/Si3N4 nanocomposites2026-26-0762To be published on 06/01/2026
In aerospace and automotive applications, the usage of magnesium (Mg)-based alloys and composites reduces the structural weight due to their low density. They also possess good specific strength and are abundantly available. The Mg-4Zn alloy is one such Mg-based alloy that is also biodegradable and biocompatible. In spite of these advantages, there is a strong need and scope to improve its wear resistance and mechanical properties. Mg-4Zn nanocomposites with Si3N4 reinforcements (also a biocompatible bio-ceramic) are hypothesized to possess superior properties. Sustainable machining with minimal subsurface defects and minimal energy consumption is necessary to manufacture components from these vacuum stir-cast nanocomposites. The resultant machining force (Fr) is a good indicator of subsurface quality and energy consumption in machining. The addition of Si3N4 reinforcement to improve the properties of the Mg-4Zn alloy could introduce challenges in machining and could influence Fr. To
N, Anand, Shaju, Tony M, G, Nagamalleswara Rao, D, Bijulal, K, Jayaprakash Reddy, K, Vijayan, Chaman, Joji J
Reducing Test Campaigns through Advanced Yield Surface Modeling for New Aircraft Metal Grades2026-26-0755To be published on 06/01/2026
Qualification of new aerospace alloys requires extensive mechanical testing to capture anisotropy and ensure reliable performance under complex loading conditions. This process is costly and time-consuming, particularly with emerging manufacturing routes such as additive manufacturing. Advanced yield surface prediction offers a route to reduce test campaigns by linking microstructural features to macroscopic constitutive models. In this work, Digimat is employed as a multi-scale material modeling platform to generate yield surfaces of polycrystalline metals using computational homogenization. Representative volume elements (RVEs) are constructed from experimental texture and grain morphology data, and their response under multiaxial loading is simulated using a crystal plasticity framework. The computed yield loci are then fitted with phenomenological functions (e.g. Barlat2000), enabling calibration of anisotropic yield models from virtual testing. As a case study, an AA6016-T4 sheet
Padhan, Manas, Uppaluri, Rohith, Lemoine, Guerric, Soni, Ganesh
Investigation of Aluminium Alloy Composites Reinforced with Zirconium oxide and Solid Lubricant Attributes for Brake and Clutch Components of Aircrafts2026-26-0752To be published on 06/01/2026
For brake and clutch components of aircraft, which require higher mechanical strength and wear resistance, lightweight aluminum composites were developed by infusing solid lubricant. In this study, hybrid composites were developed using the powder metallurgy route, using aluminum alloy AA356 and various amounts of zirconium oxide (ZrO₂) (0, 5, 10, 15, and 20 wt.%) as reinforcements. A solid lubricant, hexagonal boron nitride (hBN), at a fixed 5 wt.% is considered. Following the appropriate ASTM guidelines, the specimens were mechanically characterized by measuring their density, porosity, micro-hardness, compression strength, impact strength, and flexural strength, among other properties. The findings showed that the composites' physical and mechanical behaviour were greatly affected by the addition of ZrO₂.Porosity increased as a result of particle clustering and interfacial voids, while density increased gradually as ceramic content increased. Consistently increasing ZrO₂ addition
Senthilkumar, N.
Lightweight Magnesium Nanocomposites with Enhanced Wear Resistance for Landing Gear Application2026-26-0751To be published on 06/01/2026
This study systematically evaluated the wear behaviour of an AZ61 magnesium alloy reinforced with 15 wt.% SiC and different amounts of multi-walled carbon nanotubes (MWCNTs) under dry sliding circumstances, adopting a pin-on-disc apparatus (ASTM G99). To identify the influence of factors like sliding speed (SS) (1-3 m/s), axial load (AL) (10-30 N), and MWCNT concentration (0-3 wt.%) on tribological performance, experiments were developed using a Central Composite Design (CCD) under Response Surface Methodology (RSM). Findings showed that wear loss (WL) was greatly amplified by increasing AL owing to localized heating and contact stresses, and that a compacted tribolayer was formed by increasing SS, which decreased WL but marginally raised the coefficient of friction (CoF). At moderate AL (15-20 N), SS (2 m/s), and 2 wt.% MWCNT, the wear resistance was significantly improved by improving load transfer and creating a lubricating carbon-rich coating, resulting in a decreased WL of around
Senthilkumar, N.
Titanium Alloy, Welding Wire, 6AI - 2Sn - 4Zr - 2MoAMS4952H (Current)4/23/2026
This specification covers a titanium alloy in the form of welding wire (see 8.5).
AMS G Titanium and Refractory Metals Committee
Aluminum Alloy Castings, 7.0Si - 0.58Mg - 0.15Ti - 0.06Be (D357.0-T6), Solution and Precipitation Heat Treated, Dendrite Arm Spacing (DAS) ControlledAMS4241F (Current)4/23/2026
This specification covers an aluminum alloy in the form of castings.
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Extrusions, 0.68Mg - 0.40Si (6063-T6), Solution and Precipitation Heat TreatedAMS4156M (Current)4/23/2026
This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing up to and including 1.000 inch (25.4 mm) in diameter, least thickness, or tube wall thickness (see 8.6).
AMS D Nonferrous Alloys Committee
Castings, Aluminum Alloy Sand, 5.0Si - 1.2Cu - 0.50Mg (355.0-T71), Solution Heat Treated and OveragedAMS4214L (Historical)4/22/2026
This specification covers an aluminum alloy in the form of sand castings (see 8.6).
AMS D Nonferrous Alloys Committee
Steel, Corrosion- and Heat-Resistant, Investment Castings, 19Cr - 12Ni - 1.0Cb (Nb), Solution Heat TreatedAMS5362N (Current)4/22/2026
This specification covers a corrosion- and heat-resistant steel in the form of investment castings.
AMS F Corrosion and Heat Resistant Alloys Committee
Copper-Beryllium Alloy, Bars, Rods, Shapes, and Forgings, 98Cu - 1.9Be, Solution Heat Treated (TB00)AMS4650P (Current)4/21/2026
This specification covers a copper-beryllium alloy in the form of bars, rods, shapes, and forgings (see 8.5).
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Hand Forgings, 6.2Zn - 2.3Cu - 2.2Mg - 0.12Zr (7050-T7452), Solution Heat Treated, Compression Stress-Relieved, and OveragedAMS4108G (Current)4/21/2026
This specification covers an aluminum alloy in the form of hand forgings 8 inches (203 mm) and under in nominal thickness and of forging stock (see 8.6).
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Extruded Profiles (2065-T84), 4.2Cu - 1.2Li - 0.52Mg - 0.32Mn - 0.32Ag - 0.1Zr, Solution Heat Treated, Stress Relieved by Stretching and Artificially AgedAMS4366B (Current)4/21/2026
This specification covers an aluminum-lithium alloy in the form of extruded profiles with a maximum cross-sectional area of 19 square inches (123 cm2) and a maximum circle size of 11 inches (279 mm) from 0.040 to 0.499 inch (1.00 to 12.50 mm) in thickness (see 8.6).
AMS D Nonferrous Alloys Committee
Nickel Alloy, Corrosion- and Heat-Resistant, Sheet, Strip, and Plate, 45.5Ni - 25.5Cr - 3.2Co - 3.2Mo - 3.2W - 18.5Fe, (RA333®), Solution Heat TreatedAMS5593J (Current)4/13/2026
This specification covers a corrosion- and heat-resistant nickel alloy in the form of sheet, strip, and plate.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel, Corrosion-Resistant, Investment Castings, 16Cr - 1.9Ni - 0.08N (431), As CastAMS5353G (Current)4/13/2026
This specification covers a corrosion-resistant steel in the form of investment castings.
AMS F Corrosion and Heat Resistant Alloys Committee
Investigation of Metallurgical and Mechanical Behaviors of AA6061-AA2017 Joints Produced by Single- and Double-Pass Friction Stir Welding: Influence of Base Material Position and Post-Weld Shot Peening Technique05-19-04-00264/13/2026
The growing demand for lightweight, high-strength materials in marine and aerospace structures has promoted the use of friction stir welding (FSW) for welding dissimilar aluminum alloys. However, tensile residual stresses and microstructural heterogeneities often degrade weld integrity. This study investigates the combined impact of base material positioning, single- and double-pass FSW, and post-weld shot peening (SP) on the metallurgical and mechanical properties of AA6061–AA2017 joints. Five welding configurations were examined to evaluate how varying base material positions on the advancing and retreating sides affect material flow and mechanical behavior. Post-weld SP effectively presented compressive residual stresses, reduced surface defects, and refined surface grains. The average grain size in the stir zone was reduced from 5.2 μm (single-pass) to 2.0 μm (double-pass U-turn) after SP, confirming significant grain refinement through dynamic recrystallization. Mechanical testing
Nukathoti, Raja Sekhar, Battina, N. Malleswara Rao, Vanthala, Varaha Siva Prasad, Chirala, Hari Krishna, Maloth, Balu
Nickel Alloy, Corrosion- and Heat-Resistant, Bars, Forgings, Rings and Stock for Forgings, Rings and Heading, 72Ni - 15.5Cr - 0.95Cb - 2.5Ti - 0.70Al - 7.0Fe (Inconel® X750), Equalized, Precipitation HardenableAMS5667R (Current)4/13/2026
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash-welded rings, and stock for forging, flash-welded rings, or heading.
AMS F Corrosion and Heat Resistant Alloys Committee
Titanium Alloy Bars, Wire, Forgings, and Rings, 6Al - 6V - 2Sn, AnnealedAMS4978K (Current)4/13/2026
This specification covers a titanium alloy in the form of bars, wire, forgings, flash-welded rings 4.000 inches (101.60 mm) and under in diameter or least distance between parallel sides, and stock of any size for forging or flash-welded rings (see 8.6).
AMS G Titanium and Refractory Metals Committee
Steel, Corrosion-Resistant, Bars, Wire, Forgings and Forging Stock, 18.5Cr - 10Ni - 0.22Se (303Se), Free-Machining; for Swaging or Upsetting, Solution Heat TreatedAMS5641K (Current)4/13/2026
This specification covers a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.
AMS F Corrosion and Heat Resistant Alloys Committee
Aluminum Alloy, Rolled or Forged Rings, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T651, 7075-T652), Solution Heat Treated, Mechanically Stress Relieved, and Precipitation Heat TreatedAMS4310G (Current)4/9/2026
This specification covers an aluminum alloy in the form of rolled or forged rings up to 6 inches (152 mm), inclusive, in thickness (see 3.3.1.1.1) and an OD to wall thickness ratio of 10 or greater (see 8.5).
AMS D Nonferrous Alloys Committee
Magnesium Alloy, Investment Castings, 8.7Al - 0.70Zn - 0.22Mn (AZ91C-T6), Solution and Precipitation Heat TreatedAMS4452G (Current)4/9/2026
This specification covers a magnesium alloy in the form of investment castings (see 8.6).
AMS D Nonferrous Alloys Committee
Magnesium Alloy, Investment Castings, 9.0Al - 2.0Zn (AZ92A-T6), Solution and Precipitation Heat TreatedAMS4453H (Current)4/8/2026
This specification covers a magnesium alloy in the form of investment castings (see 8.6).
AMS D Nonferrous Alloys Committee
Copper Alloy (Brass), Sheet, Strip, and Plate, 70Cu - 30Zn, Half Hard (H02)AMS4507K (Current)4/8/2026
This specification covers a copper-zinc alloy (brass) in the form of sheet, strip, and plate (see 8.6).
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Sheet, 3.2Cu - 0.52Mg - 0.30Ag - 0.95 Li - 0.12Zr (2198-T8), Solution Heat Treated, Cold Worked, and Artificially AgedAMS4412C (Current)4/8/2026
This specification covers an aluminum alloy in the form of sheet from 0.063 to 0.249 inch (1.60 to 6.30 mm) in nominal thickness (see 8.6).
AMS D Nonferrous Alloys Committee
High Strain Rate Behaviors of Fiber Reinforced Composites in Principal and Off-Axis Directions2026-01-01754/7/2026
Materials can exhibit significantly different mechanical behaviors compared to quasi-static conditions at high strain rates (> 100 s-1). High strain rate tests using setups such as SHPB (Split-Hopkinson Pressure Bar) can provide, in a practicable manner, the stress-strain relations for a material at high strain rates. Such properties are vitally needed for activities such as simulation-driven impact safety design of composite structures deployed in the form of automotive body parts and assembly, and other sub-systems. Although the behaviors of isotropic and ductile materials such as various metallic alloys appear to have been extensively studied and reported in literature, dependence of mechanical properties of fiber-reinforced composites especially in different off-axis directions are extremely difficult to come across. To fill up this void, a detailed experimental study has been carried out on high strain rate mechanical characterization of a laminated orthotropic glass/epoxy
Bawa, Prashant, Deb, Anindya, Barui, Ananya, Zhu, Feng
Design and Simulation Analysis of an Integrated Honeycomb-Filled Front Bumper for a Special Vehicle2026-01-04754/7/2026
In frontal collisions of automobiles, the bumper beam at the front of the vehicle plays a crucial role in absorbing energy and protecting the vehicle body during a collision. To enhance the collision resistance of a specific type of special vehicle with a non-load-bearing body structure, this paper focuses on this type of vehicle and conducts a study on the design and collision performance of an integrated vehicle front bumper - anti-collision beam structure based on aluminum alloy additive manufacturing technology. A novel bumper structure is proposed, which integrates the front bumper and the front anti-collision beam of the vehicle and is integrally formed using aluminum alloy additive manufacturing technology. This integrated structure is directly connected to the vehicle frame. Firstly, based on the appearance of the special vehicle body and the form of the front anti-collision beam of traditional passenger vehicles, an integrated design of the vehicle front bumper- anti-collision
王, Xufan, Yuan, Liu-Kai, Zhang, Tangyun, Wang, Tao, Zhang, Ming, Wang, Liangmo
A Study on Fatigue Life Prediction Method for Point-Based Joints Considering Multiple Fracture Modes – FDS, Blind Rivet, and Blind Nut Focus2026-01-01804/7/2026
The application of multiple materials in vehicle bodies is accelerating as the adoption of lightweight aluminum alloys and composite materials advances rapidly. These materials play a crucial role in reducing overall vehicle weight, enhancing fuel efficiency, and complying with increasingly strict environmental regulations. As the automotive industry continues to evolve toward electrification and sustainability, the integration of lightweight and high-performance materials has become a key design strategy. However, the use of multiple materials creates new challenges in manufacturing, particularly for joining technologies. Since different materials have varying mechanical properties, thermal behavior, and surface characteristics, the selection of appropriate joining methods is essential for ensuring structural integrity and durability. Depending on material types, thicknesses, production processes, and cost constraints, various joining techniques—such as mechanical fastening, welding
Takuno, Sougo, Isono, Toshiyuki, Urakawa, Kazushi, Goto, Suguru, Kawamura, Hiroaki, Niisato, Eita, Ishigami, Yuta
Tensile and Fatigue Behavior of High Pressure Die Cast AE44 Magnesium Alloy at Elevated Temperatures2026-01-02344/7/2026
Tensile and cyclic behavior of high pressure die cast AE44 magnesium alloy have been studied at room temperature and elevated temperatures up to 350°C. Anelastic behavior has been found in both tensile and cyclic loading at the temperature below 200°C. With increasing temperature, the anelasticity disappears, and tensile and cyclic behaviors become like other engineering materials, such as steels and aluminum alloys, i.e. the total strain contains only elastic strain and plastic strain. A method to determine the yield strength at 0.2% plastic strain (σ0.2) is proposed. By using the proposed method, the yield strength σ0.2 is found to be higher than that determined using the traditional method, which is more suitable to the materials that do not exhibit anelasticity. It is believed that the anelasticity is closely related to twinning in Mg alloy, which disappears at elevated temperatures.
Liu, Yi, Yang, Wenying, Coryell, Jason
Optimizing Joint Efficiency in Stainless Steel-Aluminum Alloy FSW Joints through Advanced Parameter Control2026-01-02284/7/2026
The present study investigates optimization of ultimate tensile strength (UTS) in FSW of AA2024-T3 and SS304 in a butt joint configuration. An L18 mixed-level orthogonal array was used to design 18 experiments, varying tool rotational speed (450, 560, and 710 rpm), traverse speed (20, 25, and 40 mm/min), and pin offset (1 and 1.5 mm toward the Al side). The tool rotational speed had the greatest influence on UTS, contributing nearly one-third of the total variance, followed by pin offset and traverse speed. The optimal combination, 450 rpm, 20 mm/min, 1.5 mm offset, yielded a UTS of 344.7 MPa and a joint efficiency of 78.3%. At this setting, peak temperatures reached ~356 °C, ensuring sufficient plasticization and uniform mixing of the Al–SS interface, producing a refined stir zone with an average grain size of 4.2 μm. Fracture analysis revealed ductile failure at the optimal parameters, whereas suboptimal conditions resulted in brittle or mixed fractures due to either insufficient or
Mir, Fayaz Ahmad, Khan, Noor Zaman, Pali, Harveer Singh
Investigation on Microstructure and Mechanical Properties in the Dissimilar Joining of WE43 to AA7075 Alloy using FSW2026-01-02294/7/2026
This research investigates the alterations in microstructure, microhardness, and joint strength resulting from the dissimilar friction stir welding (FSW) of WE43 magnesium alloy to AA7075 aluminium alloy. The study specifically analyses the role of FSW process parameters in the formation of intermetallic compounds (IMCs), the evolution of grain structure, the resultant microhardness distribution across the weld zone, and the joint tensile strength. A comprehensive microstructural characterization was performed utilizing optical microscopy (OM), field emission scanning electron microscopy with energy-dispersive X-ray spectroscopy (FESEM-EDS), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD). These analyses confirmed significant grain refinement in the stir zone and the identification of various IMCs at the weld interface. Microhardness mapping indicated a gradient profile, with the weld nugget exhibiting superior hardness attributed to its dynamically recrystallized
Ahmad, Tariq, Khan, Noor Zaman, Ahmad, Babar, Siddiquee, Arshad Noor
BOLT, MACHINE - HEXAGON HEAD, PD SHANK, NICKEL ALLOY (UNS N07001), .1900-32 UNJF-3AAS3303B (Current)3/30/2026
E-25 General Standards for Aerospace and Propulsion Systems
Castings, Leaded Bronze, Sand and Centrifugal, 80Cu - 10Sn - 9.5Pb, As CastAMS4842H (Current)3/25/2026
This specification covers a leaded bronze in the form of sand and centrifugal castings (see 8.6).
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Welding Wire, 7.0Si - 0.52Mg (357)AMS4246G (Current)3/25/2026
This specification covers an aluminum alloy in the form of welding wire.
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Sheet, 3.5Cu - 1.1Li - 0.50Mg - 0.40Ag - 0.12Zr (2098-T8), Solution Heat Treated, Cold Worked, and Artificially AgedAMS4457B (Current)3/25/2026
This specification covers an aluminum alloy in the form of sheet 0.125 to 0.249 inch (3.18 to 6.32 mm), inclusive, in nominal thickness (see 8.6).
AMS D Nonferrous Alloys Committee
Aluminum Alloy, Rolled or Cold-Finished, Bars, Rods, and Wire, and Flash-Welded Rings, 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061; -T6, -T651)AMS4117M (Current)3/25/2026
This specification covers an aluminum alloy in the form of rolled or cold-finished bars, rods, and wire and of flash-welded rings and stock for flash-welded rings.
AMS D Nonferrous Alloys Committee
Copper-Zinc Alloy, Laminated Sheet, 70Cu - 30Zn, Surface BondedAMS4508K (Current)3/25/2026
This specification covers a copper-zinc alloy (brass) in the form of laminated sheet with nominal thickness 0.006 to 0.125 inch (0.15 to 3.18 mm) (see 8.5).
AMS D Nonferrous Alloys Committee
Aluminum Alloy Castings, 4.6Cu - 0.35Mn - 0.25Mg - 0.22Ti (A206.0-T4), Solution Heat Treated and Naturally AgedAMS4236E (Current)3/25/2026
This specification covers an aluminum alloy in the form of sand, investment, permanent mold, and composite mold castings with nominal wall thicknesses of up to 1.0 inch (25.4 mm), inclusive (see 8.8).
AMS D Nonferrous Alloys Committee
Steel, Corrosion-Resistant, Sheet, Strip, and Plate, 15Cr - 6.5Ni - 0.75Mo - 0.30Cb - 1.5Cu (Custom 450), Consumable Electrode Melted, Solution Heat Treated, Precipitation HardenableAMS5859G (Current)3/25/2026
This specification covers a premium aircraft-quality, corrosion-resistant steel in the form of sheet, strip, and plate.
AMS F Corrosion and Heat Resistant Alloys Committee
Titanium Alloy Bars, Forgings, and Rings, 6Al - 4V Extra Low Interstitial (ELI), Duplex Annealed, Fracture ToughnessAMS4931H (Current)3/19/2026
This specification covers a titanium alloy in the form of bars 6.000 inches (152.40 mm) and under in nominal diameter or least distance between parallel sides, forgings, flash-welded rings 6.000 inches (152.40 mm) and under in thickness, and stock for forging and stock for flash-welded rings of any size (see 8.6).
AMS G Titanium and Refractory Metals Committee
Aluminum Alloy Castings, 4.6Cu - 0.35Mn - 0.25Mg - 0.22Ti (A206.0-T7), Solution and Precipitation Heat TreatedAMS4235D (Current)3/18/2026
This specification covers an aluminum alloy in the form of sand, permanent mold, and composite mold castings with nominal wall thicknesses of up to 1.0 inch (25.4 mm), inclusive (see 8.8).
AMS D Nonferrous Alloys Committee
Nickel Alloy, Corrosion- and Heat-Resistant, Seamless Tubing, 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) 0.90Ti - 0.50Al - 18Fe (Inconel® 718), Consumable Electrode Remelted or Vacuum Induction Melted, 1775 °F (968 °C) Solution Heat TreatedAMS5589H (Current)3/18/2026
This specification covers a corrosion- and heat-resistant nickel alloy in the form of seamless tubing 0.125 inch (3.18 mm) and over in nominal OD with nominal wall thickness 0.015 inch (0.38 mm) and over.
AMS F Corrosion and Heat Resistant Alloys Committee
Aluminum Alloy, Castings, 5.0Si - 1.2Cu - 0.50Mg (C355.0-T6), Solution and Precipitation Heat TreatedAMS4215L (Current)3/18/2026
This specification covers an aluminum alloy in the form of sand, permanent mold, composite mold, and investment castings (see 8.6).
AMS D Nonferrous Alloys Committee
Titanium Alloy, Bars, Wire, Forgings, and Rings, 6Al - 6V - 2Sn, Solution and Precipitation Heat TreatedAMS4979L (Current)3/18/2026
This specification covers a titanium alloy in the form of bars, wire, forgings, flash-welded rings 4.000 inches (101.60 mm) and under in nominal diameter or least distance between parallel sides, and stock of any size for forging or flash-welded rings (see 8.6).
AMS G Titanium and Refractory Metals Committee
Aluminum Alloy, Clad Two Sides Sheet, 1.25Mn - 0.12Cu (No. 12-O Brazing Sheet), AnnealedAMS4064H (Current)3/16/2026
This specification covers an aluminum alloy in the form of clad sheet 0.006 to 0.249 inch (0.015 to 6.32 mm), inclusive, in thickness (see 8.6).
AMS D Nonferrous Alloys Committee
Filler Metal, Aluminum Brazing, 12SiAMS4185G (Current)3/13/2026
This specification covers an aluminum alloy in the form of wire, sheet, foil, pig, grains, shot, and chips (see 8.6).
AMS D Nonferrous Alloys Committee
Steel Cleanliness, Special Aircraft-Quality, Magnetic Particle Inspection ProcedureAMS2304D (Current)3/13/2026
This specification covers steel cleanliness requirements for special aircraft-quality ferromagnetic steels, including hardenable corrosion-resistant steels, by magnetic particle inspection methods. This specification contains sampling, sample preparation, inspection procedures, and cleanliness rating criteria (see 8.2).
AMS E Carbon and Low Alloy Steels Committee
Quality Assurance Sampling and Testing, Corrosion- and Heat-Resistant Steel and Alloy ForgingsAMS2374G (Current)3/13/2026
This specification covers quality assurance sampling and testing procedures used to determine conformance to applicable material specifications of corrosion- and heat-resistant steel and alloy forgings.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel Cleanliness, Aircraft-Quality, Magnetic Particle Inspection ProcedureAMS2301M (Current)3/13/2026
This specification covers steel cleanliness requirements for aircraft-quality ferromagnetic steels, other than hardenable corrosion-resistant steels (refer to AMS2303), by magnetic particle inspection methods. This specification contains sampling, specimen preparation, inspection procedures, and cleanliness rating criteria (see 8.2).
AMS E Carbon and Low Alloy Steels Committee
Aluminum Alloy, Die and Hand Forgings, and Rolled Rings, 2.3Cu - 1.6Mg - 1.1Fe - 1.0Ni - 0.18Si - 0.07Ti (2618-T61), Solution and Precipitation Heat TreatedAMS4132J (Current)3/13/2026
This specification covers an aluminum alloy in the form of die forgings, hand forgings, and rolled rings 4 inches (102 mm) and under in nominal thickness and forging stock of any size (see 8.6).
AMS D Nonferrous Alloys Committee
Alloy, Corrosion- and Heat-Resistant, Bars, Forgings, Rings and Stock for Forgings and Rings, 50Ni - 20Cr - 20Co - 5.8Mo - 2.2Ti - 0.45Al (Nimonic® Alloy 263), Consumable Electrode or Vacuum Induction Melted, 2100 °F (1149 °C) Solution Heat TreatedAMS5886E (Current)3/13/2026
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash-welded rings, and stock for forging or flash-welded rings.
AMS F Corrosion and Heat Resistant Alloys Committee
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