[2] In November 1896, the United States Secretary of the Navy referred to the company's armor-piercing projectiles as "the first made that would pierce improved armor plate."

"Old 16", the race car that won the Vanderbilt Cup in 1908, included front and rear axles, crankshaft, gears, and other parts fabricated from Carpenter steel.

[4] In 1917, the company manufactured its first high-strength, chemical-resistant stainless steel, which was immediately used in airplane engine components, cutlery, and spark plugs.

[4] Components of the engine of the "Spirit of St. Louis", Charles Lindbergh's plane that flew across the Atlantic Ocean in May 1927, were made from Carpenter steel.

[5] During World War II, the company's stainless steel was used in engine parts, steel fasteners, and cockpit instruments for fighter planes and bombers; components of Sherman tanks and submarines; radio masts for PT boats and radio equipment for battle fronts; and medical supplies such as hypodermic needles and surgical implements.

[9] In 1984, the company acquired a wire-finishing plant, capable of redrawing steel wire to extremely fine sizes from AMAX Specialty Metals of Orangeburg, South Carolina.

[14] In January 2011, the company acquired Amega West Services for $54 million, which expanded its business in the oil and gas drilling market.

[18] In February 1992, the company received a patent for a super-strong Aermet alloy, first used for the landing gear on aircraft carrier-based jet fighters.

[20] In 2006, Carpenter Technology Corporation appointed Anne L. Stevens as their chairman, President and chief executive officer, succeeding Robert J.

[28] On June 18, 2002, five plaintiffs filed a suit against the company to recover costs that had been paid to the United States Environmental Protection Agency to cleanup the Boarhead Farms Superfund site in Bucks County, Pennsylvania.