This rate of duty, which is in addition to any other duties, fees, exactions, and charges applicable to such imported steel articles, shall apply to imports of steel articles from all countries except Canada and Mexico.Martensite is a highly strained and stressed, supersaturated form of carbon and iron and is exceedingly hard but brittle.

72 Other common applications include shipbuilding, pipelines, mining, offshore construction, aerospace, white goods (e.g.Another 19th-century steelmaking process was the Siemens-Martin process, which complemented the Bessemer process.

The ancient Sinhalese managed to extract a ton of steel for every 2 tons of soil, 34 a remarkable feat at the time.The early modern crucible steel industry resulted from the invention of Benjamin Huntsman in the 1740s.