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Although molybdenum-rich high-speed steels such as AISI M1 had seen some use since the 1930s, it was the material shortages and high costs caused by WWII that spurred development of less expensive alloys substituting molybdenum for tungsten. The advances in molybdenum-based high speed steel during this period put them on par with, and in ...
High-speed steel, a subset of tool steels Home Subscriber Server , a mobile subscriber database, part of the IMS framework Hollow structural section , a type of metal profile
After other high-speed steels were produced, T1 remained one of the most commonly used commercial high-speed steels for the next century. [ 23 ] [ 24 ] The next year Crucible formed the Pittsburg Crucible Steel Company, purchasing a 423-acre (171 ha) site from Midland Steel on the Ohio River near Pittsburgh for $7.5 million to build a new plant ...
The HS2 rolling stock are trains for the under-construction High Speed 2 (HS2) high-speed rail line in the United Kingdom. The contract was awarded to a 50/50 joint venture between Hitachi Rail and Alstom , for 54 trains, which will be constructed in the United Kingdom. [ 8 ]
HSSE tool steel, a type of high-speed steel (HSS) with cobalt-alloy used as a cutting tool material, see High-speed steel#Cobalt High Speed Steels (HSS) Health, safety, security and the environment, a term used in the petroleum industry or as a department of bigger firms, for the general issue see Environment, health and safety
Modern track typically uses hot-rolled steel with a profile of an asymmetrical rounded I-beam. [16] Unlike some other uses of iron and steel, railway rails are subject to very high stresses and have to be made of very high-quality steel alloy. It took many decades to improve the quality of the materials, including the change from iron to steel.
Whip up this goat cheese–tomato toast to enjoy the fresh flavors of summer any time of the year. This sweet-and-savory combo makes a perfect breakfast, lunch or snack.
Extensive use of prefabricated components helped to speed up the construction process. The first tenants moved into the North Tower in December 1970 and into the South Tower in January 1972. Four other low-level buildings were constructed as part of the World Trade Center in the early 1970s, and the complex was mostly complete by 1973.