Types:Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
Grade: ASTM A210 Grade A1, ASTM A210 Grade C
Ends: Annealed, Pickling, Polished
Heat Treatment: Hot-finished tubes need not be heat treated. Cold- finished tubes shall be given a subcritical anneal, a full anneal, or a normalizing heat treatment after the final cold finishing process. Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Waterproof Paper Wrapped, Packed in Wooden Cabins