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

Methodology for Selection of Gasoline Catalytic Convertor & Oxygen Sensor Position, Study on Oxygen Storage Capacity for 1.2L Turbocharger MPFI Engine

2025-01-5022

05/16/2025

The results published in this paper emphasize on the study of three-way catalytic convertor for a 1.2 L turbocharged multi-point fuel injection gasoline engine. This paper takes us through the findings on methodology used for finalizing the brick configuration for catalytic convertor along with downstream oxygen sensor placement for emission control and methods applied for catalytic convertor selection with actual testing. The advantages of dual brick configuration over single brick with downstream sensor placed in between the bricks to enable faster dew point of sensor is explained using water splash test and design confirmation of better exhaust gas flow vortices concentration at the sensor tip for better sensing. Selection of catalytic convertor loading by testing its emission conversion capability and light-off behavior. NOx conversion capability across stoichiometric ratio (14.7:1 for petrol) on selected most operational zone was tested (±5% lambda) for the design-finalized

Arun Selvan, S. A., Paul, Arun Augustine, Selvaraj, Manimaran

Experimental Investigation of Carbon Nanotube Additives Effect on Performance and Emission of a High-Injection Pressure Common Rail Diesel Engine

03-18-03-0020

05/16/2025

Due to the continuous decrease in fossil fuel resources, and drawbacks of some biofuel properties, in addition to restricted environmental concerns, it becomes a vital manner to innovate some approaches for energy saving and emission reduction. One of the promising approaches is to enhance the fuel properties via adding nanoparticles. Carbon nanotubes (CNTs) blended with biofuels get extensive investigations by researchers using conventional diesel engines at relatively limited operating regimes. The objective of this work is to extend these studies using diesel fuel, rather than biofuels, on a high-injection pressure (1400–1600 bar) common rail diesel engine at wide operating conditions and higher CNT concentrations. Experimental results show an increase in peak pressure up to 24.46% than pure diesel when using 100 ppm CNTs concentration. Also, BSFC has decreased by 33.19%, and BTE increased by 54.2% compared to pure diesel fuel at high speeds and loads. NOx and CO2 emissions raised

Moaayet, Sayed, Neseem, Waleed Mohamed, Amin, Mohamed Ibrahim, Shahin, Motasem Abdelbaky

3D Printing Multiple Metals in a Single Complex Structure

TBMG-53123

05/15/2025

Smart and Cost-Effective Material for Engine Head Cover Gasket

2025-01-5015

05/12/2025

Different types of gaskets are being used in the engine. Each gasket plays a unique role for the application. In general gaskets are used to prevent leakage and fill the space between the mating surfaces under compression loads. Cylinder head cover gasket is being used in all engines. Engine gasket plays a major role in arresting and protecting the leakage of oil and external dust entry into the system. In this study new cost-effective material were identified, tested, and evaluated as per the applicable standards for the gasket application. The existing material is well known grade as VAMAC—ethylene acrylate monomer (AEM) material and the alternate material introduced is high temperature alkyl acrylate copolymer (HT ACM). In general, with AEM material have its own advantages and also challenges. Even though AEM material have some advantages with respect to temperature and mechanical properties the challenges and struggle come into picture on cost volatility and availability of raw

Deepalakshmi, R., Koorella, Krishna, Sivakumar, G.K.

Optimization of Stainless Steel Casting Process Based on Numerical Simulation

05-19-01-0006

05/10/2025

Due to the increasing precision requirements for stainless steel castings in the current industrial field, we take stainless steel as the object, use numerical simulation to analyze the manufacturing process of castings, and explore the mechanism of related defects and preventive measures. The results indicate that in the process optimization of small castings, the maximum shrinkage and porosity of the conventional scheme, the optimization scheme with the addition of cold iron and insulation riser, and the optimization scheme with the improved pouring system combined with the optimal parameters are 1.83%, 1.64%, and 1.42%, respectively. The optimal pouring temperature, pouring speed, and shell preheating temperature of medium- and large-sized castings are: 1620°C, 1.5 kg/s, and 1100°C, respectively. According to the aforementioned findings, the study raises the standard of precision production for stainless steel, and fuel the growth of the precision casting sector.

Huang, Jie, Zhang, Hongshan

Structural Strength Evaluation of the Lightweight Frame of Bus Passenger Seat with High-Tensile Material and Analysis of the Importance of Independent Variables by Regression

02-18-04-0022

05/10/2025

This study aims to develop a lightweight bus passenger seat frame by conducting structural nonlinear finite element analysis (FEA) on various thickness combinations of seat frame components to identify the optimal configuration. The thicknesses of critical structural members that primarily bear the load when force is applied to the seat frame were selected as independent variables, while stress on each component and compliance with ECE R14 seatbelt anchorage displacement regulations were set as dependent variables. A regression analysis was performed to calculate the importance of each component and analyze the influence of each design variable on the dependent variables. Strain gauges were attached to critical areas of the actual seat frame to conduct a seatbelt anchorage test, and simulations under identical conditions were performed using the nonlinear FEA software (LS-DYNA) to validate the reliability of the analysis results. The optimized seat frame exhibited a maximum stress of

Ko, Yeong Gook, Cho, Kyu Chun, Lee, Ji Sun, Kang, Ki Weon

Wear Protection for Electrified Transmissions Using e-Fluids without Active Sulfur

04-18-03-0015

05/08/2025

In electrified drivetrains, lubricants are commonly in contact with the motor and other electrical components as well as the gears and bearings. Copper, present in these electrical components, is susceptible to corrosion by fluids containing active sulfur, which can lead to catastrophic failure of the unit. Lubricating fluids for electric vehicles (referred to as e-fluids) must not cause corrosion and must maintain high performance while having suitable electrical conductivity, material compatibility, and heat transfer properties. We describe a new formulation without active sulfur that has recently entered the market, which can protect against copper corrosion. We show that this e-fluid can provide suitable wear protection under field trial conditions, and that the e-fluid provides improved wear protection in bearing (FE-8) tests compared to a traditional extreme pressure axle fluid (API GL-4). Surface analysis (X-ray photoelectron spectroscopy) measurements of the component surfaces

Hopper, Elizabeth R., Williams, Megan S., Gahagan, Michael

Influence of Strain Rate Effect on Mechanical and Crashworthiness Properties of CFRP Composite Structures

05-19-01-0002

05/06/2025

Composite materials are increasingly utilized in industries such as automotive and aerospace due to their lightweight nature and high strength-to-weight ratio. Understanding how strain rate affects the mechanical and crashworthiness properties of CFRP composites is essential for accurate impact simulations and improved safety performance. This study examines the strain rate sensitivity of CFRP composites through mechanical testing and finite element analysis (FEA). Experimental results confirm that compressive strength increases by 100%–200% under dynamic loading, while stiffness decreases by up to 22% at a strain rate of 50 s−1, consistent with trends observed in previous studies. A sled test simulation using LS-Dyna demonstrated that the CFRP crash box sustained an average strain rate of 46.5 s−1, aligning with realistic impact conditions. Incorporating strain rate–dependent material properties into the FEA model significantly improved correlation with experimental crashworthiness

Badri, Hesam, Jayasree, Nithin Amirth, Loukodimou, Vasiliki, Omairey, Sadik, Bradbury, Aidan, Lidgett, Mark, Page, Chris, Kazilas, Mihalis

Snap-Fits Evaluation for Minimizing the Squeak & Rattle in Automotives

2025-01-0091

05/05/2025

The world of plastic products has been growing due to its versatile properties and has become an intrinsic and fundamental part of engineering for new products. The most important aspects contributing to this spectacular growth are the design and assembly, making sure that plastic parts are designed optimally. The safety requirements have been increased due to the safety ratings and thus interior parts must provide more absorption and protection to occupants. The main connection types used in the plastic parts are heat stakes and snap fits. The purpose of a good snap fit is not only to have a high retention effort but also to present ergonomic characteristics with optimal insertion and extraction effort because each part requires a different function. With the time-dependent loading, the material will redistribute its internal energy thereby performing a time-related flow leading to reduced pretension thus decreasing stiffness. This paper presents an analytical and numerical method for

Michael Stephan, Navin Estac Raja, C M, Mithun, Mohammed, Riyazuddin, R, Prasath

Electromagnetic and NVH Analysis of PMSM with Eccentricity and Rotor Magnetization Variations

2025-01-0047

05/05/2025

Permanent magnet synchronous motors (PMSM) are among the most promising motors in electric vehicles due to their high torque density and efficiency. This paper is devoted to detailed electromagnetic investigations of permanent magnet synchronous motor, accounting for specific rotor eccentricity and uneven magnetization. A series of simulations are performed for a 90 HP interior PMSM to investigate the changes in the radial and tangential forces when the rotor is perfectly aligned or with static, dynamic, and mixed eccentricities. Besides, the influence of uneven magnetization due to manufacturing, demagnetization, and magnet deterioration is discussed. The forces are then used to load a vibro-acoustic model to evaluate the impact on the noise, vibration, and harshness (NVH) performance and predict the radiated sound power level for the different conditions.

Hadjit, Rabah, Kebir, Ahmed, Felice, Mario

Cairene Car-Culture: How are Automobility and Social Behavior Linked to The Development of The Soundscape and Urban Fabric of Cairo

2025-01-0069

05/05/2025

Cairo’s soundscape has witnessed changes due to the ongoing urban structure developments that accommodate the number of vehicles passing through the city. The soundscape produced by this growing automobility is affected not only by vehicles but also by their owners' behavior. Cairenes use their cars as a communication tool and an extension of private space. By viewing the vehicle as a component of the soundscape as well as a space that filters it, this study examines the synergy between social behavior, automobility, urban structure, and their interdependent relationship on the soundscape of Cairo. The study responds to literature elaborating on acoustic ecology, car culture, urban structure, and social behavior. The methodology applied in this study follows practice-based phenomenological research while documenting and reflecting on car cultural practices in Cairo from an aural perspective. Grounded theory contextualizes the analysis of archived audio and video material, semi

Abd El Naby, Abla Mohamed

Data-Driven Machine Learning Approach for Rattle Risk Mitigation

2025-01-0126

05/05/2025

In the modern automotive industry, squeak and rattle issues are critical factors affecting vehicle perceived quality and customer satisfaction. Traditional approaches to predicting and mitigating these problems heavily rely on physical testing and simulation technologies, which can be time-consuming and resource-intensive, especially for larger models. In this study, a data-driven machine learning approach was proposed to mitigate rattle risks more efficiently. This study evaluated a floor console model using the traditional simulation-based E-line method to pinpoint high-risk areas. Data generation is performed by varying material properties, thickness, and flexible connection stiffness using the Hammersley sampling algorithm, creating a diverse and comprehensive dataset for generating a machine learning (ML) model. Utilizing the dataset, the top contributing variables were identified for training the ML models. Various machine-learning models were developed and evaluated, and the

Parmar, Azan, Rao, Sohan, Reddy, Hari Krishna

Acoustic Evaluation of Fiber-Based Materials for Engine Bay Applications

2025-01-0115

05/05/2025

A newly formulated fiber-based material was developed to offer a sustainable alternative to foam-based vehicle acoustic products. The fiber-based material was designed to be used in multiple vehicle acoustic applications, with different blends of the material available depending on the application. It performs well as an engine bay sound absorber due to its high heat tolerance and good absorption performance. A study was conducted to evaluate the sound absorption performance of this fiber-based material, specifically the engine bay blends, in comparison to that of current foam-based products. The results from this study show that the sound absorption performance of this new fiber-based material can match that of current foam-based materials while providing a sustainable and fully recyclable product, unlike the foam.

Krugh, Jack

Metamaterial Application to Automotive Glass for Vibration Reduction and Reduced Noise Transmission

2025-01-0119

05/05/2025

A proprietary metamaterial has been shown to reduce panel vibration. In this particular case, the metamaterial is designed to be attached to the edge of a glass panel and can reduce panel vibration and noise transmission due to wind or other sources into the vehicle interior. Acoustic transmission loss and panel vibration assessments show the benefit of this approach.

Sorenson, Steve, Li, Xiaopeng, Moore, Jaime, Robison, Scott

Numerical Analysis of Variable Cross Section Weather-Strip Contact Sealing Performance & Stick Slip Behavioral Study

2025-01-0135

05/05/2025

This study focuses on the numerical analysis of weather-strip contact sealing performance with a variable cross-sectional design, addressing both static and dynamic behaviors, including the critical issue of stick-slip phenomena. By employing finite element modeling (FEM), the research simulates contact pressures and deformations under varying compression loads, DCE (Door Closing Efforts) requirements, typical in automotive applications. The analysis evaluates how changes in the cross-sectional shape of the weather-strip affect its ability to maintain a consistent sealing performance, especially under dynamic vehicle operations. The study also delves into stick-slip behavior, a known cause of noise and vibration issues, particularly improper/ loosened door-seal contact during dynamic driving condition. This study identifies key parameters influencing stick-slip events, such as friction coefficients, material stiffness, surface interactions, sliding velocity, wet/dry condition

Ganesan, Karthikeyan, Seok, Sang Ho, Sun, Hyang Sun

Designing Rubber Flaps for Resonance Management: High-Frequency Tuning in Electric Vehicles Using AI/ML Approaches

2025-01-0125

05/05/2025

High-frequency whine noise in electric vehicles (EVs) is a significant issue that impacts customer perception and alters their overall view of the vehicle. This undesirable acoustic environment arises from the interaction between motor polar resonance and the resonance of the engine mount rubber. To address this challenge, the proposal introduces an innovative approach to predicting and tuning the frequency response by precisely adjusting the shape of rubber flaps, specifically their length and width. The approach includes the cumulation of two solutions: a precise adjustment of rubber flap dimensions and the integration of ML. The ML model is trained on historical data, derived from a mixture of physical testing conducted over the years and CAE simulations, to predict the effects of different flap dimensions on frequency response, providing a data-driven basis for optimization. This predictive capability is further enhanced by a Python program that automates the optimization of flap

Hazra, Sandip, Khan, Arkadip

New System for the Measurement of Sound-Insertion Loss on Small Samples: A Comparison with ASTM-E2611 and ASTM E90 Test Procedures

2025-01-0116

05/05/2025

This article follows a companion article [1] presented at the SAE NVC 2021, in which a new system for the measurement on small samples of the normal-incidence Insertion Loss (IL) of multilayers used for the manufacturing of automotive sound package parts was first introduced. In addition to simplifying the evaluation of the sound-insulation of multi-layers used to produce sound-package components, the system aims at overcoming the limitations of the test procedure based on the ASTM E2611 standard. In this article, the latter point is demonstrated by comparing the insertion loss results obtained with the new system with those obtained with the test procedure based on the ASTM E2611 standard on a few multilayers commonly used for the manufacturing of automotive sound package parts. Results indicate that the data obtained by means of the newly developed system are more meaningful, practically usable and less prone to edge-effects, compared to those obtained according to the ASTM E2611

Ruggeri, Giulio, Bertolini, Claudio, Horak, Jan

Effects of Acoustic Dissipative Material in Applications with Acoustic Leakage

2025-01-0117

05/05/2025

This paper investigates the performance of a dissipative material compared to conventional acoustic materials under conditions that simulate real-world vehicle applications with acoustic leakage. Various acoustic materials were evaluated through laboratory experiments, which included acoustic leakage in both the steel panel and the acoustic materials. Acoustic leakages commonly occur in actual vehicle conditions at pass-throughs or fastener mounting locations. The study also presents in-vehicle test results to demonstrate the effectiveness of the dissipative material in managing acoustic leakage.

Yoo, Taewook, Maeda, Hirotsugu, Sawamoto, Keisuke, Anderson, Brian, Gan, KimTong, Herdtle, Thomas

Road Noise Analysis using Component TPA and FBS with Vehicle Component Modifications

2025-01-0055

05/05/2025

Road noise caused by road excitation is a critical factor for vehicle NVH (Noise, Vibration, and Harshness) performance. However, assessing the individual contribution of components, particularly bushings, to NVH performance is generally challenging, as automobiles are composed of numerous interconnected parts. This study describes the application of Component Transfer Path Analysis (CTPA) on a full vehicle to provide insights into improving NVH performance. With the aid of Virtual Point Transformation (VPT), blocked forces are determined at the wheel hubs; afterward, a TPA is carried out. As blocked forces at the wheel hub are independent of the vehicle dynamics, these forces can be used in simulations of modified vehicle components. These results allow for the estimation of vehicle road noise. To simulate changes in vehicle components, including wheel/tire and rubber bushings, Frequency-Based Substructuring (FBS) is used to modify the vehicle setup in a simulation model. In this

Kim, Jungu, Reichart, Ron, de Klerk, Dennis, Schütler, Willem, Malic, Mario, Kim, Hyeongjun, Kim, Uije

The Applications of Acoustic Black Holes to Attenuation of Coach/Bus Frame Structure Vibrations

2025-01-0065

05/05/2025

Basic structures of vehicle frames、aircraft fuselages and ship hulls are made of beams、columns and trusses. If Acoustic Black Holes(ABH) are carefully arranged alongside with the wave propagation paths in those structures, the wave propagation paths could be changed at NVH engineers’ will and the structure vibrations can be reduced. Two kinds of ABHs are used in this paper: one is ABH made of Polyurethane(PU), other one is ABH composed of several steel plate 1D ABH stacked up in parallel. Three structures are used to test the effectiveness of ABHs for vibration reductions: a squared hollow sectional steel commonly used in motorcoach/bus chassis and frame structures, a simple frame for motorcoach airbag suspension and a 12m chassis structure. The attached ABHs show a great vibration attenuation in terms of transfer functions on the basic structure element for a motorcoach. The lateral, vertical and longitudinal transfer functions for steel ABHs were greatly reduced from 13.2~14.7 dB

Xu, Chuanyan, Wang, Jianjun, Xing, Qisen, Chen, Hengbin, Huang, Xianli

Evaluating Powertrain Mount Decoupling: Insights from Simulation, Experimental Results, and Analytical Calculations

2025-01-0022

05/05/2025

Powertrain mounts are vital for isolating vibrations and enhancing vehicle ride comfort and performance, making their dynamic behavior critical for effective design. This study provides a comprehensive analysis of powertrain mount decoupling by integrating virtual simulations, physical testing, and analytical calculations. In our approach, we first derived stiffness data through analytical calculations, which were validated through multi-body dynamics (MBD) simulations that modeled interactions within the powertrain mounts. By adjusting bush stiffness parameters within the MBD framework, we predicted decoupling frequencies and analyzed kinetic energy distribution. The iterated stiffness values from simulations were then confirmed through physical testing, ensuring consistency in decoupling frequencies and energy distribution. This alignment between virtual and experimental data enhances the reliability of our findings and helps identify overlapping frequencies across vehicle systems

Shende, Kalyani, Shingavi, Shreyas, Rane, Vishesh, Hingade, Nikhil

A Comprehensive Evaluation of PU Foam Sealing for EV NVH Performance

2025-01-0120

05/05/2025

Low density polyurethane foam was first proposed as an alternative to expandable baffles and tapes for sealing vehicle body cavities towards the end of the last century. Despite several inherent advantages for cavity sealing, the high equipment cost of dispensing amongst other reasons, this technology has not spread as widely as expected. With the advent of electric vehicles, there is an increased emphasis on controlling higher frequencies from motors, inverters and other components, and polyurethane foam can be a viable solution by providing more robust sealing. Polyurethane foam sealing is already being employed in the new breed of electric vehicles, but its NVH advantages have not been fully studied or published in literature. Using an existing electric vehicle with conventional expandable baffles & tape sealing measures, a comprehensive evaluation of NVH performance using the closed-cell polyurethane foam solution was conducted. Testing included component level bench test on body

Kavarana, Farokh, Guertin, Bill

Reducing LiDAR Cabin Noise with Damped Elastomers a Novel Method for Predicting Performance and Durability

2025-01-0114

05/05/2025

Mechanical light detection and ranging (LiDAR) units utilize spinning lasers to scan surrounding areas to enable limited autonomous driving. The motors within the LiDAR modules create vibration that can propagate through the vehicle frame and become unwanted noise in the cabin of a vehicle. Decoupling the module from the body of the vehicle with highly damped elastomers can reduce the acoustic noise in the cabin and improve the driving experience. Damped elastomers work by absorbing the vibrational energy and dispelling it as low-grade heat. By creating a unique test method to model the behavior of the elastomers, a predictable pattern of the damping ratio yielded insight into the performance of the elastomer throughout the operating temperature range of the LiDAR module. The test method also provides an objective analysis of elastomer durability when exposed to extreme temperatures and loading conditions for extended periods of time. Confidence in elastomer behavior and life span was

Russell, Casey, Masterson, Peter, O'Connell, Kerry

Coating System, Advanced Performance, for Exterior Aerospace Applications

AMS-STD-32239 (Current)

05/05/2025

This specification establishes requirements for coating systems having high durability for use as aircraft exterior surface finishes. These coating systems normally are comprised of a surface treatment, a primer, and a topcoat. Alternatively, a coating system may be comprised of a surface treatment and a unicoat. Testing includes use of a chemical stripper for removal and a cleaning compound for topcoat washing, but these components are not a part of the coating system.

AMS G8 Aerospace Organic Coatings Committee

Aluminum Alloy, Sheet and Plate, Alclad 4.4Cu - 1.5Mg - 0.60Mn (Alclad 2024, -T3 Sheet, -T351 Plate) Solution Heat Treated, Cold Worked and Naturally Aged

AMS4462B (Current)

05/03/2025

This specification covers an aluminum alloy in the form of alclad sheet and plate 0.008 to 1.000 inches (0.203 to 25.4 mm) supplied in the -T3/-T351 temper (see 8.5).

AMS D Nonferrous Alloys Committee

Powder Coating Material

AMS3143D (Current)

05/03/2025

This specification establishes requirements for thermoset protective coatings in powder form.

AMS G8 Aerospace Organic Coatings Committee

Determination of Delta Ferrite Content

AMS2315J (Current)

05/03/2025

This specification covers two methods for determining the percentage of delta ferrite in steels and other iron alloys. When applicable, this specification will be invoked by the material specification.

AMS F Corrosion and Heat Resistant Alloys Committee

Molybdenum Alloy Bars, 0.48Ti - 0.09Zr - 0.02C, Arc Cast, Stress Relieved

AMS7819F (Current)

05/03/2025

This specification covers an arc-cast molybdenum alloy in the form of round bars 0.125 to 4.5 inches (3.00 to 112.50 mm), inclusive (see 8.6).

AMS G Titanium and Refractory Metals Committee

Beryllium Bars, Rods, Tubing, and Shapes, Standard Grade

AMS7906E (Current)

05/03/2025

This specification covers beryllium in the form of bars, rods, tubing, and machined shapes from vacuum hot pressed powder.

AMS G Titanium and Refractory Metals Committee

Copper-Beryllium Alloy Castings 97Cu - 2.1Be - 0.52(Co + Ni) - 0.28Si Solution and Precipitation Heat Treated (TF00)

AMS4511B (Current)

05/03/2025

This specification covers a copper-beryllium alloy in the form of sand, investment, or centrifugal castings (see 8.7).

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Extrusions 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-O) Annealed

AMS4160K (Current)

05/03/2025

This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing (see 8.6).

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Alclad Sheet, 4.4Cu - 1.5Mg - 0.60Mn (Alclad 2024-O), Annealed, Fine Grain

AMS4274C (Current)

05/03/2025

This specification covers an aluminum alloy in the form of sheet 0.009 to 0.126 inch (0.23 to 3.20 mm), inclusive, in nominal thickness, alclad (see 8.5).

AMS D Nonferrous Alloys Committee

Elastomer: Synthetic Rubber (CR or NBR) Low-Temperature -40 °F Resistant 45 to 55 Durometer Type ‘A’ Hardness

AMS3205P (Current)

05/03/2025

This specification covers a synthetic rubber in the form of sheet, strip, tubing, molded shapes, and extrusions. This specification should not be used for molded rings, compression seals, molded O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications

AMS CE Elastomers Committee

Aluminum Alloy, Extruded Wide Panel Profiles (7150-T77511) 6.4Zn - 2.4Mg - 2.2Cu - 0.12Zr Solution Heat Treated, Stress-Relieved, Straightened and Overaged

AMS4325B (Current)

05/03/2025

This specification covers an aluminum alloy in the form of extruded wide panel profiles (shapes) and rod and bars 0.500 to 1.000 inch (12.7 to 25.4 mm), inclusive, in thickness produced with cross-sectional area of 14 to 30 square inches (90 to 194 cm2) from circumscribing circle diameters (see 2.4.1) of 14 to 22 inches (356 to 559 mm) (see 8.7).

AMS D Nonferrous Alloys Committee

Steel, Corrosion Resistant, Bars and Wire 18Cr - 9Ni – 0.25Se (303Se) Free Machining, High Yield Strength Solution Heat Treated and Cold Worked

AMS5738F (Current)

05/03/2025

This specification covers a free-machining, corrosion-resistant steel in the form of cold-worked bars and wire up to 1.750 inches (44.45 mm), inclusive, in nominal diameter or least distance between parallel sides (see 8.4).

AMS F Corrosion and Heat Resistant Alloys Committee

Aluminum Alloy Plate (2624-T351), 4.1Cu - 1.4Mg - 0.6Mn, Solution Heat Treated, Cold Worked and Naturally Aged

AMS4464B (Current)

05/03/2025

This specification covers an aluminum alloy in the form of plate 0.500 to 1.500 inches (12.70 to 38.10 mm), inclusive, in thickness (see 8.5).

AMS D Nonferrous Alloys Committee

General Requirement for Preformed Hoses for Air Induction on Heavy-Duty Engines

J2140_202505 (Current)

05/03/2025

This SAE Standard outlines the requirements for a preformed thermosetting hose intended for use in heavy-duty vehicle engines, such as air cleaner inlet, crank case vent, or air cleaner to turbo or to engine inlet.

Non-Hydraulic Hose Committee

Nickel Alloy, Corrosion- and Heat-Resistant, Bars and Forgings, 58Ni - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al - 0.05Zr - 0.006B, Consumable Electrode or Vacuum Induction Melted, 1975 °F (1079 °C) Solution Heat Treated, Stabilized, and Precipitation Heat Treated

AMS5709K (Current)

05/03/2025

This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars and forgings in the solutioned, stabilized, and precipitation heat-treated condition. Stock for forging shall be in the condition ordered.

AMS F Corrosion and Heat Resistant Alloys Committee

Steel Bars, Forgings, Rings and Stock for Forging and Flash-Welded Rings 0.95Cr - 0.20Mo (0.28 - 0.33C), (SAE 4130) Aircraft Quality

AMS6370S (Current)

05/03/2025

This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash-welded rings, and stock for forging or flash-welded rings.

AMS E Carbon and Low Alloy Steels Committee

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