Admiralty Industries is a manufacturer/distributor of copper alloy tubing used in the manufacturing and repairing of heat exchangers and boilers. All our products are manufactured on demand to client’s specifications by our contracted mills to ASTM B111/ASME SB111 and other standards. • Admiralty Brass Tubes (UNS C44300) • Aluminum Bronze Tubes (UNS C68700) • Copper Nickel 90-10 Tubes (UNS C70600) • Copper Nickel 70-30 Tubes (UNS C71500) Standard Manufacturing Range: • OD: 0.276” ~ 2.167” (7mm ~ 55mm) • Wall Thickness: 0.014” ~ 0.120” (0.36mm ~ 3.05mm) • Min. Order Quantity: 2,200 lbs • Manufacture per Metric or Imperial Measurements