Hot roll seamless steel pipe standard: ASTM, DIN, ISO, EN, JIS, GB, etc. Outer diameter: 20mm-1200mm, or as required. Wall thickness: 0.5mm-25mm, or as required. Length: 1m-12m, or as required. Surface: Lightly oiled, hot dip galvanized, electro-galvanized, black, bare, varnish coating/anti-rust oil, protective coating, etc. Package: Standard export package, or as required. Price term: EXW, FOB, CIF, CFR, CNF, etc. Payment: T/T, L/C, Western Union, etc. Export to America, Australia, Brazil, Canada, Peru, Iran, Italy, India, United Kingdom, Arab, etc. Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. Hot-rolled seamless steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.