ASME SA516 Gr.70 Explosive Cladding Plate with ASME SB127 monel 400, Explosion Bonded Clad Plate

ASME SA516 Gr.70 CARBON STEEL CLDDING SB127 MONEL 400 PLATE means a plate where the structural base material is carbon steel conforming to SA-516 Grade 70, and it is clad (bonded) on one or both sides with Monel 400 alloy conforming to SB-127.

Purpose of Cladding:

• This construction combines the cost-effectiveness and structural strength of carbon steel with the superior corrosion resistance of Monel 400.

• The carbon steel provides the primary strength and thickness required for pressure containment or structural support.

• The Monel 400 layer protects the carbon steel from aggressive corrosive environments it would otherwise rapidly degrade in.

Common Cladding Material Combinations (Structural Base + Corrosion-Resistant Cladding)

Key Characteristics of Cladding Materials:

• Base Thickness: Predominantly carbon steel (SA-516 Gr. 70).

• Clad Thickness: A relatively thin layer of Monel 400 (SB-127), typically specified as a minimum nominal thickness or as a percentage of the total thickness.

• Bond: The two metals are metallurgically bonded (usually by roll bonding or explosion bonding) to ensure integrity and good heat transfer.

• Performance: The plate behaves structurally like carbon steel but exposes the highly corrosion-resistant Monel 400 to the process fluid or environment.

When to Use Cladding vs. Solid Alloy?

1>. Cladding: High-pressure vessels, heat exchangers, large structures needing corrosion resistance.
2>. Solid Alloy: Small components, extreme temperatures/purity (e.g., semiconductor furnaces).

For specific project needs (e.g., temperature, acid concentration), consult corrosion charts to select the optimal cladding alloy!

Applications

• Pressure vessels and heat exchangers handling corrosive chemicals (e.g., HF acid, chlorides, caustic).

• Flue gas desulfurization (FGD) scrubbers and ductwork.

• Marine and offshore components exposed to seawater.

• Chemical processing equipment (reactors, tanks, columns).

• Pulp and paper digesters and bleach washers.

• Desalination plant components.