** Material: UNS S31803** Standard: ASTM A479 ** Condition: Heat treatment ** Size: 10-300mm diameter, Max. length: 3000mm. ** Material: 17-4 PH, S17400** Standard: ASTM A564 TYPE 630 ** Condition: Heat treatment ** Size: 2-350mm diameter, Max. length: 3000mm. ** Material: 13-8MO, S13800 ** Standard: ASTM A564 ** Condition: Heat treatment ** Size: 10-350mm diameter, Max. length: 3000mm. ** Competitive price and timely delivery time. If you demand them, pls feel free to contact us, thank you.