An ASTM A217 WC6 plug valve is a quarter-turn manual valve made from WC6 material, which is a low alloy steel containing 1 ¼% chromium and ½% molybdenum. This valve conforms to the ASTM A217 standard, which encompasses chromium-molybdenum steels. The WC6 plug valve is designed for controlling fluid flow by starting or stopping it, and it offers dependable on-off, diverting, and moderate throttling services.