Carbon Steel & Low Temp: A234 GR.WPB, A420 GR.WPL6 Stainless Steel: A403 WP304/L, A403 WP316/L Duplex & Super Duplex: A815 UNS S31803, A815 UNS S32750 Size: 1/2" up to 36" SCH: SCH 10S up to SCH XXS