Rolling Mill #1 /  Rolling Mill #2

Twin Brothers Marine has two (2) tubular rolling mills dedicated to the manufacturing of large diameter (28" to 222"), heavy wall (3/8" to 5") rolled and welded tubular using double submerged arc welding process, (DSAW)

Both mills are capable of cold rolling typical steel materials such as ASTM A-36 or similar having yield 36 KSI, API 2H Gr. 50, ASTM A633 Gr. C or similar having yield 50 KSI, API 2Y, API 2W, ASTM A709 Gr. 70W or similar having 60 – 100 KSI.

Fabrication capacity between the two mills is up to 200 tons per day.

Rolling Mill # 1 (Shown in images to the right) is a 12,000 sq. ft. enclosed building with a 4-roller Roundo Model PAS 650 Special.

Sufficient capacity to roll 3” thick plate to internal diameter 28” to 168” in 10' length.

Mill operation is supported by a flame planer plate cutting machine with two torches, automatic submerged arc welding stations, beveling machines with two torches each, three 3 - 10 ton overhead cranes, and a rail spur.

Piling rack with submerged arc welding stations capable of producing tubulars in normal lengths up to 220 feet in length with possible adjustment to longer lengths.