Alloy Steel Pipe Description: Type: Seamless Alloy Steel Pipe Material Grade: ASTM A335 Gr.P22 Size: 12 INCH SCH160 Surface Treatment: Acid pickling,etc. Application: Used in Boiler and Heat Exchanger etc. Packing: In Bundles Case or as Your Requirement. Payment Terms: TT/LC, West Union, Paypal and O/A. Delivery Time: 7-25 Days after Received the Deposit.