Haynes International
（重定向自Hastalloy）
![Three check valves in corrosion-resistant Hastelloy](/Images/godic/202501/17/Swing_Check_valves0746.JPG")
Haynes International Inc. is a manufacturer of metal alloys employing more than 1,070 employees worldwide with sales of $434.4 million in 2007 with 8 plants around the world. The corporation is headquartered in Kokomo, Indiana. The company specializes in corrosion resistant, and high-temperature alloys for the aerospace, chemical, and gas turbine industries.