Undersea pipeline

ASTM A213/A213M standard, which covers a range of grades of minimum-wall-thickness, seamless, and cold-drawn ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes, including the T9 grade.

ASTM A500 straight seam submerged arc welded steel pipe is a straight seam steel pipe manufactured using the submerged arc welding process, and its standard complies with ASTM A500.

ASTM A213 T11 is the part of ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.

JIS SS400 hollow steel pipe is a structural carbon steel hollow steel pipe produced in accordance with Japanese Industrial Standards (JIS). Mainly used for general structural purposes, such as bridges, buildings, machinery and other fields.