How to Choose the Right Sheet Metal Material

SPCC, SS304, aluminum: decision guide based on application.

Choosing the right material is the most important design decision

Quick guide

Indoor, painted enclosure → SPCC (cold rolled steel)

Cheapest, easy to work with, powder coat

Food / pharma, washdown → SS304

Corrosion resistant, cleanable

Coastal / offshore / chemical → SS316L

Better corrosion, higher cost

Lightweight enclosure → Aluminum 5052

Half weight of steel, good corrosion

Structural / machined bracket → Aluminum 6061 or steel

High volume, simple parts → SPCC with progressive die

Decorative / electronics → Aluminum 5052 brushed or anodized

Mistakes to avoid: using SS304 in coastal (rusts), using SPCC outdoors without coating (rusts), using aluminum for high-wear parts (soft)

At Yiguangnian, we help you select material based on your application, environment and budget.