A corrosion-resistant alloy overlay metallurgically bonded to a lower-cost base plate — full corrosion protection on the wetted face without the cost of a solid exotic-alloy tube sheet.
| Structural Principle | Base metal carries structural load; alloy overlay resists the corrosive fluid |
| Typical Clad Thickness | 2-6 mm, roughly 10-25% of total plate thickness |
| Common Combinations | Carbon steel + SS316L, Carbon steel + Hastelloy, Low-alloy steel + Inconel |
| Bond Verification | Ultrasonic testing (UT) and/or radiography (RT) of the bond line |
| Governing Codes | ASME Section VIII (base), ASTM clad plate specifications |
Any structural type can be built as clad; material choice on both sides is the real decision.
The clad layer is typically 2-6 mm, or roughly 10-25% of total plate thickness, sized to provide corrosion allowance over the design life without adding unnecessary cost to the structural base.
Yes — the bond line between base and clad is verified separately, typically by ultrasonic testing and sometimes radiography, since a disbonded clad layer is a failure mode the base metal's own certification doesn't cover.
Not any combination — the base and clad materials must be metallurgically compatible for bonding, and the combination must be qualified under the applicable code. Common pairings like carbon steel with 316L or Hastelloy are well established; unusual combinations need engineering review.
Every enquiry is checked against governing code, material compatibility and manufacturing feasibility before a quote is issued. Use our product, material, grade and standards guides to freeze the RFQ — then confirm with engineering.
Send your diameter, material, pressure class and quantity — we'll confirm thickness and price.