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STEEL PROCESSING INSIGHTS

Carbon steel and stainless steel joining in Japanese industry

In Japanese industrial applications, carbon steel and stainless steel are commonly combined through dissimilar metal welding or clad steel plate / clad pipe structures.

Steel processing knowledge

Illustration of stainless steel cladding over a carbon steel base
Concept: carbon steel provides strength and cost control; stainless steel provides corrosion resistance and surface performance.

Why combine carbon steel with stainless steel?

Carbon steel offers strength, workability and cost advantages. Stainless steel provides corrosion resistance, surface cleanliness and durability. Combining the two materials helps reduce cost while keeping the required strength and corrosion resistance.

Illustration of dissimilar metal welding between carbon steel and stainless steel
Dissimilar metal welding joins carbon steel and stainless steel components for local corrosion-resistant or assembly needs.

Form 1: Dissimilar metal welding

Dissimilar metal welding joins carbon steel and stainless steel components together. It is useful when only certain sections require stainless steel performance, such as nozzles, contact surfaces or corrosion-resistant areas.

Form 2: Clad steel plate and clad pipe

Clad steel combines a carbon steel base material with a stainless steel layer through physical or metallurgical bonding. The carbon steel side provides strength and thickness, while the stainless steel layer provides corrosion resistance.

Why clad materials are useful

Lower cost than full stainless Carbon steel strength Stainless contact surface Large equipment use Pressure vessels Chemical equipment Shipbuilding Kitchenware
Applications of carbon steel and stainless steel joining in shipbuilding pressure vessels chemical equipment piping and kitchenware
Common applications include shipbuilding, pressure vessels, chemical equipment, piping and kitchenware.

Typical applications

These technologies are common in shipbuilding, pressure vessels, chemical equipment, piping systems, food equipment and kitchenware manufacturing, where strength, corrosion resistance and cost must be balanced.

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