Detacouple
In shipbuilding, our Detacouple structural transition joints are the world-renowned standard for permanent, aluminum-to-steel welds — welds that connect aluminum superstructures and bulkheads to steel hulls, framing, and decks.
NobelClad's structural transition joint are approved by the American Bureau of Shipping (ABS) and the joints are made using a patented bonding process certified by Military Specification MIL-J-24445A and NobelClad Product Spec DETA-604M and NC 603.
Replacing mechanical fasteners, Detacouple structural transition joints provide strong, maintenance-free, aluminum-to-steel welds for thousands of structures aboard today’s marine vessels and offshore operations. Shipbuilders and naval architects have and continue to rely on Detacouple structural transition joints to:
Lower costs
Reduce maintenance
Expedite installation
Reduce vessel weight
Comply with universally accepted maritime authorities (ABS, Lloyd’s & DNV GL)
Avoid galvanic corrosion
Provide faster, reliable delivery
Meet vessel design specifications
NobelClad has 2 different structural transition joint product lines based on geographic location. Detacouple is available to customers in the United States with imperial sizes and TriClad® is available in Europe, Africa, Asia and the Middle East with metric sizes.
To order your aluminum-to-steel structural transition joints, please click the links below based on your geographic location.
Fishing boat with TriClad 
Global defense vessels have been known to use Detacouple 
Yacht using Detacouple Detacouple Product Offerings
| Steel | Interlayer | Al Alloy | Nom. Thickness (in) | Bar Length (in) | Bar Width (in) | |
| Detacouple™ 9009 | A516 gr.55 |
Al 1100 |
Al 5086 | 0.75 (0.375+0.25+0.125) | 144 | 0.75 to 36 |
| Detacouple™ 9008 | Al 5456 | 1.375 (0.75+0.375+0.25) | 144 | 0.75 to 48 | ||
| Stainless Detacouple™ | 316L | Al 1100 Titanium Ni 200 |
Al 5086 | 0.953 (0.375+0.25+0.078+0.125+0.125) | 110 | 0.75 to 40 |
| Al 5456 | 1.578 (0.75+0.375+0.078+0.125+0.25) |