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41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common variant stylings include chrome-moly, cro-moly, CrMo, CRMO, CR-MOLY, and similar).
STANAG 4140 - Adoption of a Standard Target Acquisition Meteorological Message (METTA) is a NATO Standardization Agreement to provide meteorological information such as refractive index, temperature, pressure and cloud cover for remotely piloted vehicles, drones, weapon locating radars and sound ranging systems.
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International.. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.
In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications. The number is in the following format: x.yyzz(zz)
A subway maniac with 87 prior arrests was just busted for two transit stabbings — carrying the “large knife’’ he allegedly used in the violence, police and sources said Sunday. Jamar Banks ...
The "Alternatives to Detention" program is tracking more than 25,000 migrants using ankle and wrist-worn monitors, which costs taxpayers an average of nearly $80,000 each day, according to ICE data.
ECTFE has a continuous usage temperature range between –76°C and +150°C (–105°F to +300°F). It has strong impact resistance and a Young's modulus in the range of 1700 MPa, [5] allowing for self-standing items and pressure piping systems. The polymer maintains high impact strength in cryogenic applications. [6]
That means arctic air is blasting over the US, while pressure changes and the motion of the polar vortex whip up high winds and create a perfect recipe for wintry weather.