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SURFACE FINISHING

Passivation

A chemical treatment selected for appropriate stainless-steel parts.

For specified stainless grades

Specify the result you need.

State the required specification and documentation. Passivation and polishing have different purposes; one is not a replacement for the other.

Discuss this finish
Passivation material reference

Material families to review

Stainless Steel

Consider stainless steel when corrosion exposure and cleanable surfaces matter.

Compatibility depends on the specific grade, geometry and treatment specification. Final selection is reviewed with the project.

A finish belongs
in the drawing, too.

Identify visible surfaces, masking areas, contact points and fits. State whether your dimensional requirements apply to the finished part.

Read the finish checklist

Surface finish comparison

Select a process specification and acceptance reference; appearance illustrations do not establish coating thickness, corrosion performance or conformity.

Surface finish comparison
FinishMaterial families to reviewRequirement to specifyFeatures to review
PassivationStainless SteelFor specified stainless gradesState the required specification and documentation. Passivation and polishing have different purposes; one is not a replacement for the other.

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