Browse Topic: Steel

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Cast-In Brake Disc – An affordable lightweight design for passenger car brake discs2026-01-0821To be published on 09/14/2026
To meet evolving automotive demands, Fritz Winter is developing new lightweight brake discs. While alternatives to traditional cast iron discs exist, aluminum compound versions are too costly, and mechanically joined steel hat discs present complex assembly and tolerancing challenges. Fritz Winter’s engineering objective was to create a reliable method for joining a steel hat with a cast iron friction ring directly during the production process. This composite design significantly reduces vehicle weight, without compromising durability, comfort, or NVH performance. The methodology involves inserting a finished, stamped steel hat (2.5 to 3 mm thick) into the casting mold and then casting the friction ring directly onto it. This process eliminates the need for subsequent machining of the hat. During development, several key challenges were overcome. A patent-pending sealing process was created to prevent liquid iron from spilling onto the steel hat. To ensure a strong bond and prevent
von Reth, Thomas
Research on the Hysteresis Performance of Welded Hollow Spherical Joints under Low Temperature2026-99-1641To be published on 07/24/2026
The extreme cold environment has a significant impact on the mechanical properties of welded hollow ball nodes, which are crucial components in large-span steel structures. In this paper, based on the comprehensive test data of drum-shaped welded hollow sphere nodes from Beijing Daxing International Airport, a sophisticated finite element model incorporating welding residual stress is established. Through detailed static loading analysis and systematic hysteresis performance studies, the research thoroughly explores the influence mechanisms of low temperature on node bearing capacity, deformation capability, and energy dissipation performance. The investigation reveals that while the bearing capacity of the nodes increases significantly in low-temperature environments, both their plastic deformation capacity and energy consumption performance are notably reduced. These findings provide valuable theoretical references for the design and optimization of large-span mesh frame structures
Luo, Yanzhi, Jin, Changming
Research on Magnetic Measurement and Evolution Characterization of Fatigue Damage in Ferromagnetic Materials2026-99-1651To be published on 07/24/2026
To address the detection and monitoring needs of fatigue damage in ferromagnetic materials, this paper proposes a nondestructive testing method based on the evolution of magnetic hysteresis characteristics. By constructing a hysteresis loop measurement system, the variation patterns of coercivity (Hc) in Q235 steel specimens under cyclic loading were investigated, revealing three-phase characteristics of fatigue damage: the initial linear growth phase (N ≤ 8,000), the rapid rise phase (8,000 < N ≤ 12,000), and the stable oscillation phase (N > 12,000). Experimental results demonstrate that the relationship between coercivity and damage degree (D) can effectively characterize the processes of crack initiation, propagation, and instability, with significant inflection points observed at D = 0.6 and D = 0.8. The quantitative model based on coercivity provides a novel method for early warning and condition assessment of fatigue damage, offering advantages such as non-contact operation and
Chen, Li, Ding, Keqin
Research on the Microstructure and Properties of X80 Steel Circumferential Welds Under Different Automatic Welding Processes2026-99-1636To be published on 07/24/2026
Two sets of X80 pipes with a diameter of 1219 mm × 27.5 mm were welded using a fully automatic welding process (GMAW) and a combined automatic welding process (GTAW + FCAW-G), respectively. By analyzing the microstructure, strength, impact toughness, and fracture toughness of welded joints, the differences in microstructure and properties of circumferential weld joints under different automatic welding processes were studied. The results showed that the design of multi-layer and multi-pass welding and appropriate heat input controlled the microstructure of the weld seam and heat-affected zone area of the circumferential weld joint. Both automatic welding processes obtained welded joints with finer microstructure, thereby ensuring the strength and toughness of the joint. The tensile strength and yield strength of the welded joints under two automatic welding processes reach over 680 MPa and 600 MPa, respectively. The welded joints under both automatic welding processes have good impact
Liu, Jian, Niu, Huli, Wang, Hong, Sun, Xinyan, Yang, Huaqing, Bai, Qian
Study on Mechanical Performances and Fatigue Life of the Compensation Ropes in High-Speed Railway Contact Network2026-99-05157/10/2026
The compensation rope is a special steel wire rope used as a driving component in the ratchet device. The compensation rope will endure severe random cycling loading during service time, which will lead to fatigue failures and catastrophic disasters. Experimental studies are hard to mimic the practical working conditions and time consuming, therefore, this study establishes a finite element model of the compensation rope and simulates the stress distribution under axial tensile and bending loads. Fatigue life is analysed based on both stress and strain fatigue theories under alternating tensile and bending loads. The results indicate that under axial tensile loads, the stress in the outermost wires of the core strands of the compensation rope is the largest, with the minimum fatigue life. As the stress ratio of the alternating tensile load increases, the fatigue life also improves due to smaller stress amplitudes. Under the conditions of bending loads, the outermost wires of the
Du, Fei, Cong, Jiajia, Bian, Haoxiang, Zhu, Junchen, Zhao, Aiguo
Steel, Corrosion-Resistant, Bars, Wire, and Forgings 12Cr - 9Ni - 2Mo – 0.7Al – 0.3Ti Vacuum Induction Plus Vacuum Consumable Electrode Melted Solution Heat Treated, Precipitation HardenableAMS5928 (Current)6/24/2026
This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.
AMS F Corrosion and Heat Resistant Alloys Committee
High-Strength Carbon and Alloy Die Drawn SteelsJ935_202606 (Current)6/22/2026
This SAE Recommended Practice is intended to provide basic information on properties and characteristics of high-strength carbon and alloy steels which have been subjected to special die drawing. This includes both cold drawing with heavier-than-normal drafts and die drawing at elevated temperatures.
Metals Technical Committee
Chord Method of Evaluating Surface Microstructural CharacteristicsARP1820C (Current)6/18/2026
This practice provides a method for evaluating microhardness and microstructure very close (0.002 inch (0.051 mm) or less) to the surface of a disk specimen. Specific accept/reject criteria for partial decarburization (3.7.1), inadvertent carburization/nitriding (3.7.3), total decarburization/intergranular oxidation (3.8), and other characteristics evaluated are to be found in the applicable specification where this ARP is referenced.
AMS E Carbon and Low Alloy Steels Committee
Chemical Check Analysis Limits, Corrosion- and Heat-Resistant Steels and Alloys, Maraging and Other Highly Alloyed Steels, and Iron AlloysAMS2248H (Current)6/15/2026
This specification defines limits of variation for determining acceptability of composition of cast and wrought corrosion and heat-resistant steels and alloys, maraging and other highly alloyed steels, and iron alloy parts and materials acquired from a producer.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 1.4Mn - 1.5Si - 0.30Cr - 1.8Ni - 0.40Mo (0.23 - 0.28C) (HY-TUF), Premium Aircraft-Quality, Consumable Electrode Vacuum MeltedAMS6425G (Current)6/15/2026
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, and mechanical tubing 225 square inches (1452 cm2) and under in cross-sectional area and forging stock of any size.
AMS E Carbon and Low Alloy Steels Committee
Carburizing and Heat Treatment of Carburizing Grade Steel PartsAMS2759/7F (Current)6/15/2026
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements and procedures for three classes of gas, vacuum, liquid, and low-pressure carburizing (LPC) and related heat treatment of parts fabricated from carburizing-grade steels. Parts made from steels other than those specified in the detail specifications may be heat treated in accordance with the applicable requirements using processing temperatures, times, and other parameters recommended by the material producer. This specification does not cover pack carburizing.
AMS B Finishes Processes and Fluids Committee
Quantifying Life Cycle Environmental Impact of Emerging Aluminum High-Pressure Die Cast (HPDC) Mega-Castings Replacing Stamped Steel Solutions13-07-01-00046/4/2026
Over the last few years, there has been an uptick in the exploration and implementation of aluminum high-pressure die casting (HPDC) mega-castings as replacements for conventional stamped steel parts in vehicles. This trend is expected to increase with common justifications, including claims of reduced costs and lower environmental impacts associated with the replacement of dozens of individual parts with a single casted piece, along with reduced demands on associated tooling and machinery. However, the data and literature to support these claims are limited and at times contradictory, with some studies showing increased costs and energy demands for mega-casting technologies. This study presents the results of a literature review and a gate-to-gate life cycle inventory (LCI) adapted from conventional HPDC aluminum casting unit processes that may be used to quantify potential life cycle global warming potential (GWP), cumulative energy demand (CED), and other environmental impacts of
Sebastian, Brandie, Balzer, Russ
Steel, Corrosion-Resistant, Wire, 18Cr - 9.0Ni (302), Spring TemperAMS5688N (Current)6/1/2026
This specification covers a corrosion-resistant steel in the form of wire.
AMS F Corrosion and Heat Resistant Alloys Committee
Study on Impact Resistance of Sandwich-Structured Battery Protection Panels2026-99-17285/22/2026
With new energy vehicles developing rapidly, battery safety, as an important part of the impact on the range of new energy vehicles and vehicle safety, has become the focus of attention. The battery pack protection plate is a core component to protect the battery, its performance needs not only impact resistance, but also lightweight, honeycomb sandwich structure with its excellent energy absorption characteristics and weight reduction performance by the battery pack protection plate performance research. At present, the core-to-face sheet interaction in conventional sandwich structures subjected to impact loads has not been fully elucidated, and the quantitative characterization of damage is insufficient, so this paper aims to optimize the lightweight impact-resistant structure by exploring the synergistic energy dissipation mechanism between the high-strength core material and the steel plate. The study combines theory and simulation, adopting ideal rigid-plastic film theory to
Zhang, Guanghao, Zhang, Mingming, Luo, Changjie, Zhou, Jun, Zhang, Fengqiang, Yu, Wenze, Li, Jiongfeng, Guo, Qingrong
Design And Analysis of Low-Temperature Liquid Nitrogen Tank Car2026-99-17125/22/2026
The design and analysis of the wave plate of the tank body of the low-temperature liquid nitrogen tank car are carried out. According to the design method of the empirical formula, the 0.43 MPa low-temperature mobile liquid nitrogen tank body wave plate with the working temperature of -196°C to -178°C is optimized. According to the analysis and design standards, the stress distribution law of the mobile liquid nitrogen tank body under the forward impact condition is analyzed by the method of numerical analysis. The results show that the stress value will gradually increase near the junction of the tank body and the support, and the parts such as the head, the pad, the angle steel ring, and the Z3848 glass steel pipe meet the requirements of the analysis and design standards. At the same time, the first six orders of the natural mode vibration frequency of the tank body are analyzed, which provides a reliable and effective data analysis for the optimization design of the low-temperature
Ding, Xuqiang, Ni, Yiwei, Gu, Chen, Yan, Dongdong, Xu, Zhiquan, Wang, Qi
Evaluation of Mechanical Tensile Properties on TIG-Welded AISI 304L Austenitic Stainless Steel Using Principal Component Analysis05-19-04-00275/14/2026
The reliability of welded joints is a vital factor in modern manufacturing, directly affecting product performance and durability. This study investigates methods to enhance the mechanical and metallurgical quality of butt joints in AISI 304L stainless steel welded by the gas tungsten arc (GTA) process. A systematic experimental design was implemented using the Taguchi method with an L9 orthogonal array, considering welding current, gas flow rate, and travel speed as the main parameters. To determine overall weld performance, the joints were characterized by measuring ultimate tensile strength (UTS), yield strength, percentage elongation, and examining their microstructural morphology. An experimental strategy based on the Taguchi approach has been implemented. The welding performance of the material was investigated, and the process parameters were optimized using multiresponse optimization through principal component analysis (PCA), incorporating an orthogonal array design, signal-to
Ghosh, Nabendu, Roy, Angshuman
Steel, Corrosion- and Heat-Resistant, Bars, Wire, Forgings, Mechanical Tubing, Rings and Stock for Forging, Flash-Welded Rings or Heading, 13Cr - 2.0Ni - 3.0W (Greek Ascoloy), AnnealedAMS5616P (Current)5/9/2026
This specification covers a corrosion- and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash-welded rings, and stock for forging, flash-welded rings, or heading.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel, Bars and Forgings and Forging Stock, 2.0Cr - 10Ni - 8.0Co - 1.0Mo (0.10 - 0.14C) (HY-180), Double Vacuum Melted, Solution Heat Treated, Marage HardenableAMS6543H (Current)5/7/2026
This specification covers a premium aircraft-quality maraging steel in the form of bars and forgings, 0.50 to 8.00 inches (12.7 to 203.2 mm) in nominal diameter or least distance between parallel sides, and forging stock of any size.
AMS E Carbon and Low Alloy Steels Committee
STUD - STRAIGHT, RING LOCKED, CORROSION AND HEAT RESISTANT STEEL (UNS SS66286), .3750-16 UNJC X .3750-24 UNJFAS3322F (Current)5/5/2026
E-25 General Standards for Aerospace and Propulsion Systems
STUD - STRAIGHT, RING LOCKED, CORROSION AND HEAT RESISTANT STEEL (UNS S66286), .2500-20 UNJC-3A X .2500-28 UNJF-3AAS3320F (Current)5/5/2026
E-25 General Standards for Aerospace and Propulsion Systems
Advanced Alloys for Rotorcraft Enabled by ICME (Presentation Only)F-0082-2026-03415/5/2026
QuesTek is advancing a suite of emerging alloy technologies to address modern rotorcraft engineering challenges. Current initiatives prioritize the optimization of "print-to-use" materials, such as 17-4PH and other specialized steels designed to minimize or eliminate post-processing requirements in additive manufacturing. These innovations represent a strategic shift toward materials that are not only high-performing but are also specifically tailored for next-generation manufacturing workflows. The catalyst for these advancements is QuesTek’s mastery of Integrated Computational Materials Engineering (ICME). These core capabilities are now deployed through QuesTek's ICMD® software platform, which empowers engineering teams with predictive simulation tools that eliminate the bottlenecks of traditional trial-and-error methodologies. By integrating these physics-based models into a centralized digital environment, QuesTek enables the rotorcraft industry to design, test, and implement
Sebastian, Jason, Gaffey, Michael, Kozmel, Thomas
Fretting Wear of Boundary Lubricated M50 Steel and Si3N4 Cylindrical Rollers on M50 SteelF-0082-2026-02275/5/2026
Bench-level boundary-lubricated fretting experiments were conducted to compare the relative wear of all-steel and hybrid material pairs. Roller-on-raceway contacts were simulated using both AISI M50 steel and Si3N4 cylindrical rollers on flat AISI M50 steel disks. The rollers were 9 mm long with a 9 mm diameter. Tests were conducted with constant amplitude, oscillation frequency, and load. All tests were boundary-lubricated with 0.1 ml of DOD-PRF-85734, MIL-PRF-32538, MILPRF-23699, or unclassified ISO VG 68 aviation gear oil. Wear volume was calculated from 3D measurements on the roller and disk samples after each test. Wear tracks were inspected with light and scanning electron microscopy. It was concluded that hybrid pairs exhibited less wear than all-steel pairs when boundary-lubricated with three of the four aviation gear oils. Both hybrid and all-steel pairs exhibited similar wear when boundary-lubricated with MIL-PRF-23699 oil.
Hager, Carl, Carl, Matthew, Benak, Noah
Rings, Piston, Cast Iron As CastAMS7310M (Current)5/5/2026
This specification covers piston rings fabricated from cast iron.
AMS E Carbon and Low Alloy Steels Committee
WIRE - STEEL, CORROSION AND HEAT RESISTANT, SAFETY, 1800 °FAS9226B (Current)5/4/2026
E-25 General Standards for Aerospace and Propulsion Systems
Steel, Corrosion- and Heat-Resistant, Investment Castings, 19Cr - 12Ni - 1.0Cb (Nb), Solution Heat TreatedAMS5362N (Current)4/25/2026
This specification covers a corrosion- and heat-resistant steel in the form of investment castings.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel, Corrosion- and Heat-Resistant, Bars, Wire, Forgings, Mechanical Tubing, Rings and Forging Stock, 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V (A286), Consumable Electrode Melted, 1750 °F (954 °C) Solution Heat Treated, Welding Grade, Precipitation HardenableAMS5895G (Current)4/24/2026
This specification covers a corrosion- and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash-welded rings, and stock for forging, flash-welded rings, or heading.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 1.2Cr - 3.25Ni - 0.12Mo (0.07 - 0.13C) (9310), Premium Aircraft-Quality, Electroslag Remelted or Consumable Electrode Vacuum RemeltedAMS6267L (Current)4/20/2026
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS E Carbon and Low Alloy Steels Committee
Steel, Corrosion- and Heat-Resistant, Sheet, Strip, and Plate, 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V (A286), Multiple Melted, 1800 °F (982 °C) Solution Heat Treated, Welding Grade, Precipitation HardenableAMS5858F (Current)4/12/2026
This specification covers a corrosion- and heat-resistant steel 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)4/12/2026
This specification covers a corrosion-resistant steel in the form of investment castings.
AMS F Corrosion and Heat Resistant Alloys 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)4/12/2026
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
Steel Bars, Forgings, and Tubing, Nitriding, 1.4Cr - 1.2Mo - 0.3V (0.29 - 0.36C), (32CrMoNiV5), Double Vacuum Melted, Premium Aircraft-Quality for Bearing ApplicationsAMS6498C (Current)4/9/2026
This specification covers a nitriding grade of premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. AMS6496 and AMS6497 cover UNS K23280 with other quality levels.
AMS E Carbon and Low Alloy Steels Committee
Strain-Based Fracture Assessment of Tailor Welded Blanks under Complex Loading Conditions2026-01-02314/7/2026
Tailor Welded Blanks are critical for automotive lightweighting yet prone to premature failure due to differential thickness and strength across the weld. This study utilized digital image correlation (DIC) to analyze the maximum in-plane principal Hencky strain (E₁max) and axial strain (εₐₓₐₗ) of TWBs under complex loading conditions, including biaxial and plane-strain states. Twelve distinct material stack-ups were tested to evaluate the impact of material difference on formability. Results indicated that differential properties significantly altered strain distribution, often forcing localization onto the thinner or softer sheet. While UHSS welds provided high load capacity with limited ductility, combinations using HSLA or IF substrates were susceptible to early localization and unstable fracture. Comparative heatmaps illustrate strain evolution across all samples, providing spatial insights beyond conventional force–displacement analysis. Metallurgical characterization confirmed a
Aminzadeh, Ahmad, Sheng, ZiQiang, Huang, Lu, McCarty, Eric, Biro, Elliot
Steel, Sheet, Strip, and Plate, 0.75Si - 0.62Cr - 0.20Mo - 0.10Zr (0.10 - 0.17C) (NAX 9115-AC)AMS6354H (Current)4/7/2026
This specification covers a low-alloy steel in the form of sheet, strip, and plate 4.00 inches (101.6 mm) and under in thickness.
AMS E Carbon and Low Alloy Steels Committee
Machine Learning-Based Prediction of Tensile Properties in Cast Stainless Steel Influenced by Chemical Composition Variation2026-01-02374/7/2026
In the category of cast stainless steels, there are several variants per different level of addition of chromium, vanadium along with some minor elements, such as molybdenum, niobium, tungsten to meet the requirement of corrosion and oxidation resistance. However, the influence of chemical composition variations on the mechanical properties of cast SS continues to lack a clear understanding. In the present study, via machine learning, the effects of each element on the tensile properties of the selected cast stainless steel are studied. The machine learning model is then used to predict how variations in elements affect tensile behavior, with the predictions validated through physical testing.
Mishra, Neelam, Biswas, Surjayan, V S, Rajamanickam, Aluru, Phani, Liu, Yi, Akbari, Meysam, Coryell, Jason
Multi-Material Topology Optimization Using Difference-Based Equivalent Static Load Method2026-01-01734/7/2026
Topology optimization (TO) has become a powerful tool for generating lightweight structural designs. TO has been widely applied to linear static problems, where analytical sensitivities are easy to obtain. However, crashworthiness design requires nonlinear dynamic analysis, for which analytical sensitivities are generally not available. To extend TO into crash problems, approximation methods such as the Equivalent Static Load (ESL) method have been developed. ESL replaces the nonlinear problem with a series of linear static subproblems, ensuring that the displacement fields match at certain time steps. These subproblems can then be efficiently solved using standard TO techniques. A key limitation of ESL is that it relies on the initial mesh for all subproblems, which reduces accuracy for highly nonlinear crash responses. To address this, Triller proposed the difference-based ESL (DiESL) method, which updates the mesh in each subproblem to the deformed configuration, therefore improving
Huang, Yuhao, Kim, Il Yong
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
Comparison of Formability Performance Between CR550LA and CR590DP2026-01-01784/7/2026
While rapid development of advanced high strength steels (AHSS) for a safer and lighter vehicle has been a primary focus in the automotive industry, the application of traditional high strength low alloy (HSLA) steel continues to be actively supported and developed. AHSS are often used to replace HSLA steels for downgauging while maintaining similar or better performance in crashworthiness and durability. However, recent developments have enabled the availability of higher strength, cold-rolled HSLA steels that could offer opportunities for a more balanced solution between material cost and material performance. Certain higher strength HSLA steels not only offer a cost-effective way to increase the strength-to-weight ratio but also provide comparable formability and better weldability to AHSS. In this study, cold rolled HSLA grades of CR420LA and CR550LA are evaluated in overall formability and in-use performance when compared to CR590 dual phase (DP) grade. The evaluations performed
Shih, Hua-Chu, Brown, Lindsay, Pednekar, Vasant, Shi, Ming, Tedesco, Sarah
NASA Tech Briefs: April 202626AERP044/2/2026
Leonardo DRS Expands Production Capacity to Advance Naval Power, Sensors, and AI-Driven Mission Systems Success at Sea: NIWC Atlantic Uncrewed Surface Vessel Completes Fastest Transatlantic Crossing High‑Speed Spindles Unlock Five‑Axis Machining Innovation with Smaller Tools Why CFD is Stuck in the File Era Accurate and Resilient GNSS Timing Modules for Critical Infrastructure Undetectable Ship-to-Ship Laser Communications EP40: Structural Epoxy Used for Steel Bonding in Marine Applications Master Bond EP40 is a two-part, room temperature curing epoxy for bonding, sealing, coating, and encapsulating. EP40 bonds well to a variety of substrates, including naval steel, the primary structural metal used in the shipbuilding industry Vortex Research to Solve Aviation's Efficiency Tradeoff with Active Strakes A research team developed a smart strake system that dynamically adapts to flight conditions, showing a promising drag reduction in the wind tunnel with respect to passive strakes. This
EP40: Structural Epoxy Used for Steel Bonding in Marine Applications26AERP04_074/1/2026
Master Bond EP40 is a two-part, room temperature curing epoxy for bonding, sealing, coating, and encapsulating. EP40 bonds well to a variety of substrates, including naval steel, the primary structural metal used in the shipbuilding industry. Master Bond Inc., Hackensack, NJ To reduce its environmental impact and pollution, the shipping industry is investigating methods to construct more lightweight ships. One potential method is using adhesive bonding techniques to replace traditional welding and riveted joints on ships to fabricate lighter ships with smaller carbon footprints. However, adhesives age and deteriorate when exposed to moisture, high temperatures, and ultraviolet light. This makes it necessary to understand how they age in maritime environments to determine whether they can truly replace traditional welding techniques. To this end, researchers at Centro de Investigación en Tecnologías Navales e Industriales (CITENI) and Centro de Investigación TIC (CITIC) developed a new
Blackening of Steel, Touch-Up MethodAMS2489B (Current)4/1/2026
This specification covers the requirements for an inorganic black coating applied at ambient temperature to steel to touch up black oxide coating in areas where the black oxide has been removed. This coating is intended only to visually change the surface to a black color, not to meet the requirements of any black oxide specification.
AMS B Finishes Processes and Fluids Committee
Advancing Steel Joining: A Critical Review of Adhesives and Sealants for High-Performance Automotive and Construction Applications05-19-04-00253/31/2026
For centuries, steel has been a cornerstone material for structural construction; by contrast, adhesive joining is a relatively nascent technology, particularly in heavy structural applications. The present article aims to provide the reader a review of the applications of adhesive joining in steel-based applications. Steel being a popular material in many industries due to its excellent mechanical properties, but traditional joining methods might have certain limitations viz. ability to withstand vibrations or movement, distortion, difficult to repair, and the like. Adhesive joining provides an alternative approach that offers advantages like reduced weight, improved corrosion resistance, enhanced aesthetics, ability to join multi-materials, ability to resist vibrations to a certain limit, and the like. This article examines the use of steel within the automotive and construction industries, intentionally narrowing its scope from steel’s broader range of applications. This article
S., Shrray, Arora, Kanwer Singh
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
Steel Cleanliness, Premium Aircraft-Quality, Magnetic Particle Inspection ProcedureAMS2300N (Current)3/24/2026
This specification covers steel cleanliness requirements for premium 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
Steel Bars, Forgings, Mechanical Tubing and Forging Stock, Nitriding, 1.4Cr - 1.2Mo - 0.3V (0.29 - 0.36C) (32CrMoNiV5), Aircraft-Quality for Bearing ApplicationsAMS6496C (Current)3/13/2026
This specification covers a nitriding grade of aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. AMS6497 and AMS6498 cover UNS K23280 having other quality levels.
AMS E Carbon and Low Alloy Steels Committee
Minimizing Stress Corrosion Cracking in Wrought Forms of Steels and Corrosion-Resistant Steels and AlloysARP1110E (Current)3/12/2026
The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide the aerospace industry with recommendations concerning the minimization of stress corrosion cracking in wrought heat-treatable carbon and low-alloy steels and in austenitic, precipitation hardenable, and martensitic corrosion-resistant steels and alloys. The detailed recommendations are based on laboratory and field experience and reflect those design practices and fabrication procedures which should avoid in-service stress corrosion cracking.
AMS E Carbon and Low Alloy Steels Committee
Steel, Corrosion- and Heat-Resistant, Bars, Wire, Forgings, Forging and Ring Stock, Mechanical Tubing, and Rings, 12.5Cr (SAE 410), Aircraft Quality, AnnealedAMS5613T (Current)3/12/2026
This specification covers a corrosion- and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash-welded rings, and stock for forging or flash-welded rings.
AMS F Corrosion and Heat Resistant Alloys Committee
Steel Cleanliness, Aircraft-Quality, Magnetic Particle Inspection ProcedureAMS2301M (Current)3/12/2026
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
Steel Cleanliness, Special Aircraft-Quality, Magnetic Particle Inspection ProcedureAMS2304D (Current)3/12/2026
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
Steel, Welding Wire, 0.50Cr - 0.55Ni - 0.20Mo (0.18 - 0.23C) (SAE 8620), Vacuum Melted, Environment Controlled PackagingAMS6375F (Current)3/4/2026
This specification covers a low-alloy steel in the form of welding wire. Type 2 - copper coated wire was removed from this document (see 8.4).
AMS E Carbon and Low Alloy Steels Committee
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